JP6096441B2 - Medical image processing apparatus, medical image processing method, and medical image processing program - Google Patents

Description

  Embodiments described herein relate generally to a medical image processing apparatus, a medical image processing method, and a medical image processing program.

  Conventionally, stereoscopic vision is known as a technique for displaying an image having a sense of depth based on image data taken from a plurality of directions. In recent years, techniques using stereoscopic vision have been proposed in the field of medical images such as X-ray images.

Japanese Patent Laid-Open No. 4-166135

  When displaying a medical image as a stereoscopic image, it is desired that various users can effectively stereoscopically view the medical image under various circumstances. As a specific example, it is important that not only a doctor but also a patient can confirm a stereoscopic image or that the stereoscopic image can be used more effectively for diagnosis.

  Therefore, an object of the present invention is to provide a medical image processing apparatus, a medical image processing method, and a medical image processing program that can effectively use a medical image as a stereoscopic image.

A medical image processing apparatus according to an embodiment of the present invention includes an image extraction unit and an output unit. The image extraction unit is configured to extract the left eye from the plurality of frames of medical image data based on imaging angle information attached to each of three or more frames of medical image data captured from at least two different directions. Medical image data for the right eye and medical image data for the right eye are respectively extracted. The output unit outputs the medical image data for the left eye and the medical image data for the right eye as stereoscopic medical image data to a specified device. The image extraction unit extracts one frame of medical image data that is one candidate of the left-eye medical image data and the right-eye medical image data according to the designation information input from the input device, and extracts the extracted Two frames of medical image data captured on different directions by a preset angle with respect to one frame of medical image data are automatically extracted as the other candidate and displayed on the display device. .
The medical image processing method according to the embodiment of the present invention is based on imaging angle information attached to three or more frames of medical image data of a subject imaged from at least two different directions. Extracting the left-eye medical image data and the right-eye medical image data from the plurality of frames of medical image data, and the left-eye medical image data and the right-eye medical image data to the designated device. And outputting as medical image data for stereoscopic viewing. In the medical image processing method, one frame of medical image data that is one candidate of the left-eye medical image data and the right-eye medical image data is extracted according to the designation information input from the input device. The two frames of medical image data on both sides captured in different directions by a preset angle with respect to the one frame of medical image data are automatically extracted as the other candidate and displayed on the display device.
The medical image processing program according to the embodiment of the present invention causes a computer to function as an image extraction unit and an output unit. The image extraction unit is configured to extract the left eye from the plurality of frames of medical image data based on imaging angle information attached to each of three or more frames of medical image data captured from at least two different directions. Medical image data for the right eye and medical image data for the right eye are respectively extracted. The output unit outputs the medical image data for the left eye and the medical image data for the right eye as stereoscopic medical image data to a specified device. The image extraction unit extracts one frame of medical image data that is one candidate of the left-eye medical image data and the right-eye medical image data according to the designation information input from the input device, and extracts the extracted Two frames of medical image data captured on different directions by a preset angle with respect to one frame of medical image data are automatically extracted as the other candidate and displayed on the display device. .

1 is a configuration diagram of an X-ray imaging apparatus including a medical image processing apparatus according to a first embodiment of the present invention. FIG. 2 is a diagram showing an example of a single imaging system control method for collecting stereoscopic X-ray image data in the X-ray imaging apparatus shown in FIG. 1. The figure which shows an example of the selection screen of the X-ray image data for stereoscopic vision displayed on a display apparatus by the image extraction part shown in FIG. The figure which shows another example of the selection screen of the X-ray image data for stereoscopic vision displayed on a display apparatus by the image extraction part shown in FIG. The figure which shows the example which displayed the horizontal line on the selection screen of the X-ray image data for stereoscopic vision displayed on a display apparatus by the image extraction part shown in FIG. The figure which shows an example in the case of performing coordinate transformation with respect to X-ray image data in the image extraction part shown in FIG. The block diagram of the ultrasonic diagnosing device provided with the medical image processing apparatus which concerns on the 2nd Embodiment of this invention.

  A medical image processing apparatus, a medical image processing method, and a medical image processing program according to embodiments of the present invention will be described with reference to the accompanying drawings.

(First embodiment)
FIG. 1 is a configuration diagram of an X-ray imaging apparatus including a medical image processing apparatus according to the first embodiment of the present invention.

  The X-ray imaging apparatus 1 includes an imaging system 2, a control system 3, a data processing system 4, a data output device 5, such as a printer 5A and a media recording device 5B, an input device 6, and a display device 7. The imaging system 2 includes an X-ray irradiation unit 8, an X-ray detector 9, a drive mechanism 10, and a bed 11. The control system 3 includes a high voltage generator 12 and a photographing position controller 13. Although FIG. 1 illustrates an X-ray imaging apparatus 1 having a single imaging system 2, a plurality of imaging systems 2 may be provided in the X-ray imaging apparatus 1.

  The X-ray irradiation unit 8 includes an X-ray tube, and is disposed to face the X-ray detector 9 with the subject O set on the bed 11 interposed therebetween. The X-ray irradiation unit 8 and the X-ray detector 9 can change the angle and relative position with respect to the subject O while maintaining the relative position by driving the drive mechanism 10. Specifically, the X-ray irradiation unit 8 and the X-ray detector 9 are fixed to both ends of a C-shaped arm having a rotation function. The X-ray irradiation unit 8 is configured to irradiate X-rays from a predetermined angle toward the subject O with an X-ray tube, and the X-ray detector 9 can detect X-rays transmitted through the subject O. The

  Further, the inclination and position of the top plate of the bed 11 can be adjusted by the drive mechanism 10. Therefore, not only the angle of the X-ray irradiation unit 8 and the X-ray detector 9 with respect to the subject O but also the angle of the top plate can be adjusted to change the X-ray irradiation direction with respect to the subject O. it can.

  Further, in the vicinity of the subject O set on the bed 11, a contrast agent injection device 14 for injecting a contrast agent into the subject O as necessary is provided.

  The high voltage generator 12 of the control system 3 is an apparatus that irradiates the subject O with X-rays having desired energy by applying a high voltage to the X-ray tube of the X-ray irradiation unit 8. The photographing position control device 13 is a device that outputs and controls a control signal to the drive mechanism 10. That is, the rotation angle and position of the X-ray irradiation unit 8 and the X-ray detector 9 and the inclination and position of the top plate of the bed 11 are controlled by control signals output from the imaging position control device 13 to the drive mechanism 10.

  The data processing system 4 includes an A / D (analog to digital) converter 15 and a computer 16. The computer 16 functions as the medical image processing apparatus 16 by executing a medical image processing program. That is, the X-ray imaging apparatus 1 incorporates a medical image processing apparatus 16.

  However, an independent medical image processing apparatus having a similar function may be connected to the X-ray imaging apparatus 1 via a network. Further, a circuit may be used to configure the medical image processing apparatus 16 incorporated in the X-ray imaging apparatus 1 or the medical image processing apparatus connected to the X-ray imaging apparatus 1 via a network. When using a medical image processing program, a general-purpose computer can be recorded on an information recording medium and distributed as a program product so that it can be used as the medical image processing apparatus 16.

  The medical image processing apparatus 16 includes an X-ray image generation unit 17, an X-ray image acquisition unit 18, a display processing unit 19, an image memory 20, an image extraction unit 21, a warning unit 22, and an output unit 23. Therefore, when the medical image processing apparatus 16 is configured using a medical image processing program, the medical image processing program includes an X-ray image generation unit 17, an X-ray image acquisition unit 18, and a display processing unit 19 image memory. 20, a program that functions as the image extraction unit 21, the warning unit 22, and the output unit 23.

  The X-ray image generation unit 17 has a function of taking X-ray detection data digitized from the X-ray detector 9 through the A / D converter 15 and performing data processing to generate X-ray image data.

  Therefore, when the X-ray image generation unit 17 cooperates with the imaging system 2 and the control system 3, the X-ray imaging apparatus 1 uses the imaging system 2 to collect X-ray image data of the subject O. A function as a collecting means is provided.

  The X-ray image acquisition unit 18 has a function of acquiring the X-ray image data generated by the X-ray image generation unit 17 and giving it to the display processing unit 19. In particular, in an independent medical image processing apparatus connected to the X-ray imaging apparatus 1 via a network, the X-ray image generation unit 17 can be omitted. In this case, the X-ray image acquisition unit 18 has a function of acquiring X-ray image data from the X-ray image generation unit 17 provided in the X-ray imaging apparatus 1 via the network.

  The display processing unit 19 acquires a plurality of X-ray image data including X-ray image data for the left eye and X-ray image data for the right eye from the X-ray image acquisition unit 18, and the acquired plurality of X-ray image data 3D has a function of generating image data that can be stereoscopically viewed as 3D image data and a function of causing the display device 7 to display the generated 3D image data.

  Any known method can be used as a method of displaying a 3D image that can be stereoscopically viewed based on the X-ray image data for the left eye and the X-ray image data for the right eye. As a typical method, a method using a normal display and dedicated glasses 24 and a method using a dedicated display are known.

  Accordingly, the X-ray imaging apparatus 1 is provided with components corresponding to the 3D image display method. For example, if dedicated glasses 24 are used for 3D display, the dedicated glasses 24 are connected to the computer 16. When a dedicated display is used for 3D display, a display for 3D display is connected to the computer 16 as the display device 7. The display processing unit 19 is configured to input / output information necessary for 3D display to one or both of the display device 7 and the glasses 24.

  On the other hand, the control system 3 has a function of controlling one or a plurality of imaging systems 2 in order to collect left-eye X-ray image data and right-eye X-ray image data necessary for stereoscopic viewing. That is, the control system 3 collects X-ray image data of three or more frames of the subject corresponding to at least two different directions from each other by moving the single or plural imaging systems 2. Thus, it has a function of controlling the photographing system 2. Hereinafter, a case where a single imaging system 2 is moved to collect X-ray image data of a plurality of frames at different imaging angles will be described as an example.

  FIG. 2 is a diagram showing an example of a control method of the single imaging system 2 for collecting stereoscopic X-ray image data in the X-ray imaging apparatus 1 shown in FIG.

  As shown in FIG. 2 (A1), the X-ray tube 8A and the X-ray detector 9 of the X-ray irradiation unit 8 are sequentially stopped at two different positions by driving a drive mechanism 10 including a C-shaped arm. Two X-ray image data corresponding to each position of 8A and X-ray detector 9 can be collected. Then, two frames of X-ray image data corresponding to two different X-ray irradiation directions can be used as one frame of X-ray image data having two parallaxes. Further, by repeating such control of the imaging system 2, it is possible to sequentially collect three or more frames of X-ray image data of a subject corresponding to two or more directions.

  Further, by continuously moving the C-arm, the imaging system 2 can be moved like a pendulum as shown in FIG. That is, the imaging system 2 can be reciprocated, and X-ray image data can be collected sequentially at both ends.

  As another example, the imaging system 2 can be controlled such that a plurality of X-ray image data are collected during the movement of the imaging system 2 including the X-ray tube 8A and the X-ray detector 9. Specifically, as shown in FIG. 2 (B1), the X-ray tube 8A and the X-ray detector 9 can be moved in one direction, and imaging can be performed twice within the movement period.

  Even when collecting a plurality of X-ray image data while the imaging system 2 is moving, the imaging system 2 can be reciprocated like a pendulum by continuously moving the C-arm. That is, as shown in FIG. 2 (B2), the imaging system 2 is reciprocated, and the imaging system 2 is controlled so that a plurality of X-ray image data corresponding to different directions are collected in each of the forward path and the return path. be able to.

  As another example, as shown in FIG. 2 (C1), one imaging system 2 is moved in one direction, and a plurality of X-ray image data corresponding to three or more different directions are collected while moving or stationary. can do. As shown in FIG. 2 (C2), one imaging system 2 can be reciprocated like a pendulum, and a plurality of X-ray image data corresponding to three or more different directions can be collected in each of the forward path and the return path. . In this case, three or more frames of X-ray image data corresponding to three or more different directions are sequentially collected as time-series image data at different timings.

  When the imaging system 2 is controlled by the control system 3 as shown in FIG. 2, X-ray image data of a plurality of frames of 3 frames or more corresponding to two or more different directions is acquired by the image acquisition unit 18. Therefore, the display processing unit 19 can generate 3D image data that can be stereoscopically viewed by various methods based on a plurality of X-ray image data corresponding to different directions.

  X-ray image data of three or more frames for stereoscopic vision acquired by the X-ray image acquisition unit 18 can be stored in the image memory 20. Imaging angle information can be attached to the X-ray image data stored in the image memory 20. For this purpose, the X-ray image acquisition unit 18 has a function of adding imaging angle information to the X-ray image data for stereoscopic viewing and writing it in the image memory 20.

  The imaging angle information can be defined as arbitrary information representing the relative angle between the subject O and the imaging system 2. Therefore, the angle of the X-ray tube 8A viewed from the subject O, the angle of the X-ray detector 9 viewed from the subject O, the irradiation angle of X-rays from the X-ray tube 8A toward the subject O, the X-ray detector 9 Various definition methods such as an angle of the subject with respect to the subject O are possible. However, it is practical to define the imaging angle information as a commonly used angle such as the angle in the right anterior oblique (RAO) direction and the left anterior oblique (LAO) direction. is there.

  The image extraction unit 21 receives at least two different directions stored in the image memory 20 when an instruction to output a stereoscopic image as a still image to the data output device 5 is input from the input device 6. The X-ray image data for the left eye and the X-ray image data for the right eye are respectively extracted from three or more frames of X-ray image data of the subject imaged from the X-ray.

  The extraction processing of the X-ray image data for the left eye and the X-ray image data for the right eye is executed based on imaging angle information attached to the X-ray image data of a plurality of frames. Specifically, the image extraction unit 21 extracts left-eye X-ray image data and right-eye X-ray image data as two frames of X-ray image data captured in different directions by a preset angle. Configured. The preset angle is set as an angle suitable for stereoscopic viewing of a still image. Empirically, it is preferable to set an angle in a range from 1 degree to 4 degrees as an imaging angle difference between two frames of X-ray image data. In particular, it is optimal to extract two frames of X-ray image data separated by about 2 degrees for stereoscopic viewing.

  Then, the X-ray image data picked up by positioning the X-ray detector 9 relatively to the left side of the subject O, that is, the LAO direction side is determined by the image extraction unit 21 as X-ray image data for the left eye. . On the other hand, the X-ray image data captured by positioning the X-ray detector 9 relatively to the right side of the subject O, that is, the RAO direction side, is determined by the image extraction unit 21 as X-ray image data for the right eye. . If the imaging angle difference between the X-ray image data for the left eye and the X-ray image data for the right eye is 2 degrees,

  For example, X-ray image data rotated 90 degrees in the LAO direction from the reference position is determined as X-ray image data for the left eye, and X-ray image data rotated 88 degrees in the LAO direction from the reference position is the right eye. X-ray image data for use. Alternatively, X-ray image data rotated once in the LAO direction from the reference position is determined as X-ray image data for the left eye, and X-ray image data rotated once in the RAO direction from the reference position is the right eye. X-ray image data for use.

  In order to display a stereoscopic image as a still image, it is necessary for the image extraction unit 21 to determine two-frame X-ray image data of left-eye X-ray image data and right-eye X-ray image data. As a selection method of the two-frame X-ray image data, a first method in which the operator manually selects both of the two-frame X-ray image data by operating the input device 6, and one of the two-frame X-ray image data is selected. The image extraction unit 21 automatically selects, and the image extraction unit 21 automatically selects both the second method in which the operator manually selects the other by operating the input device 6 and two frames of X-ray image data. There is a third method.

  Therefore, the image extraction unit 21 has a function as a user interface for selecting one frame or two frames of X-ray image data in accordance with information input from the input device 6. Therefore, the image extraction unit 21 is configured to display on the display device 7 a selection screen for X-ray image data used for stereoscopic viewing. Then, when the X-ray image data designation information is input from the input device 6 through the X-ray image data selection screen, the image extraction unit 21 medical image for the left eye according to the designation information input from the input device 6. At least one of the data and the medical image data for the right eye is configured to be extracted.

  In the case of the first method in which the operator manually selects both of the two frames of X-ray image data by operating the input device 6, the image extraction unit 21 outputs two frames according to the designation information input from the input device 6. X-ray image data is extracted from the image memory 20. Then, the image extraction unit 21 relatively converts the X-ray image data of the frame when the subject O is viewed from the left side to the X-ray image for the left eye based on the imaging angle information incidental to the X-ray image data for two frames. On the other hand, X-ray image data of a frame when the subject O is viewed from the right side is set as X-ray image data for the right eye.

  In this case, the determination of the left-eye X-ray image data and the right-eye X-ray image data in the image extraction unit 21 is automatically executed based on the imaging angle information. Accordingly, the X-ray image data for the left eye and the X-ray image data for the right eye that are suitable for stereoscopic vision are extracted and determined regardless of the order in which the operator selects the two-frame X-ray image data by operating the input device 6. Can do.

  On the other hand, in the case of the second method in which the operator manually selects one frame of X-ray image data by operating the input device 6, the left-eye X-ray image data and the right eye according to the designation information input from the input device 6. One of the X-ray image data for use is extracted from the image memory 20. Then, the image extraction unit 21 sets the other image memory as X-ray image data captured in a direction different from the extracted left-eye X-ray image data or right-eye X-ray image data by a preset angle. 20 automatically extracted.

  Furthermore, in the case of the third method in which the image extraction unit 21 automatically extracts two frames of X-ray image data from the image memory 20, the image extraction unit 21 determines a predetermined imaging angle difference, line-of-sight direction, and the like. Two frames of X-ray image data are extracted from the image memory 20 in accordance with the extraction conditions. Then, the image extraction unit 21 causes the display device 7 to display the extracted two-frame X-ray image data as candidates for the left-eye X-ray image data and the right-eye X-ray image data. In this case, the operator operates one or both of the left-eye X-ray image data and the right-eye X-ray image data by operating the input device 6 through the X-ray image data selection screen. It can be changed to image data.

  FIG. 3 is a diagram illustrating an example of a selection screen for stereoscopic X-ray image data displayed on the display device 7 by the image extraction unit 21 illustrated in FIG. 1.

  As shown in FIG. 3, for example, a radio button is displayed, and an arbitrary selection mode can be selected from three X-ray image data selection modes. In the example shown in FIG. 3, the center radio button is selected.

  The uppermost selection mode is a selection mode in which the operator manually selects two frames of X-ray image data by operating the input device 6. In the central selection mode, when the operator manually selects one frame of X-ray image data for the left eye displayed on the left side by operating the input device 6, the X-ray image for the right eye is captured at a different angle by a predetermined angle. This is a selection mode in which data is automatically selected and displayed on the right side.

  In the lowermost selection mode, when the operator manually selects one frame of X-ray image data displayed at the center by operating the input device 6, two frames of X-rays on both sides are captured at different angles by a predetermined angle. This is a selection mode in which image data is automatically selected and displayed on the left and right.

  In this case, the image extraction unit 21 stores one frame of medical image data as one candidate of the left-eye X-ray image data and the right-eye X-ray image data according to the designation information input from the input device 6 in the image memory 20. Extract from Then, the image extraction unit 21 automatically uses two frames of X-ray image data on both sides captured in different directions by a preset angle with respect to the extracted one frame of X-ray image data as the other candidate. Extracted from the image memory 20 and displayed on the display device 7.

  For this reason, in the lowermost selection mode, three frames of X-ray images captured at different angles by a predetermined angle are displayed on the display device 7. When one of the two frames of X-ray image data displayed on the left and right is selected by operating the input device 6, it is determined as a pair for stereoscopic viewing with the X-ray image data displayed at the center. Therefore, the X-ray image data displayed in the center is determined for the right eye or the left eye depending on which of the two frames of X-ray image data displayed on the left and right is selected.

  In any of the selection modes described above, it is possible to improve the convenience for the operator by displaying electronic keys such as a scroll bar and scroll keys on the display device 7 in order to manually select X-ray image data by operating the input device 6. Connected. Therefore, the image extraction unit 21 causes the display device 7 to display an electronic key such as a scroll bar for designating at least one of the left-eye X-ray image data and the right-eye X-ray image data by operating the input device 6. Configured as follows.

  Further, as shown in the figure, the image extraction unit 21 performs imaging between the X-ray image data for the left eye and the X-ray image data for the right eye based on the imaging angle information attached to the selected X-ray image data. The angle difference can be automatically displayed on the display device 7. By displaying such auxiliary information, the operator can easily select stereoscopic X-ray image data.

  FIG. 4 is a diagram showing another example of a selection screen for stereoscopic X-ray image data displayed on the display device 7 by the image extraction unit 21 shown in FIG.

  FIG. 4 shows an example in which three selection modes similar to the example shown in FIG. 3 can be selected with radio buttons. However, in the example shown in FIG. 4, X-ray image data of a frame that is not a selection target is also displayed as a thumbnail image. Such display makes it easier for the operator to select X-ray image data for stereoscopic viewing.

  Note that the image extraction unit 21 automatically extracts two frames of X-ray image data from the image memory 20 and displays them on the display device 7 as candidates for left-eye X-ray image data and right-eye X-ray image data. The same user interface can be used for changing the X-ray image data.

  The two-frame X-ray image data for stereoscopic viewing using a still image can be actually displayed on the display device 7 as a stereoscopic image for selection. In this case, information such as selection information and angle difference information for directly or indirectly specifying the X-ray image data for the right eye and the X-ray image data for the left eye from the input device 6 to the display processing unit 19. The X-ray image data for the right eye and the X-ray image data for the left eye specified by the input information are displayed on the display processing unit 19 as a stereoscopic image.

  Further, the right-eye X-ray image data and the left-eye X-ray image data to be displayed can be changed by operating the input device 6. As a result, various stereoscopic images are switched and displayed in parallel on the display device 7. Then, selection information of the stereoscopic image being displayed can be input to the image extraction unit 21 from the input device 6.

  Then, the image extraction unit 21 receives from the display processing unit 19 the right-eye X-ray image data and the left-eye X-ray image data corresponding to the selected stereoscopic image being displayed on the display device 7 or specific information thereof. Can be acquired. When specific information of the X-ray image data for the right eye and the X-ray image data for the left eye is given from the display processing unit 19 to the image extraction unit 21, the image extraction unit 21 corresponds to two frames of X-ray image data. Is obtained from the image memory 20.

  It is important for good stereoscopic viewing that there is no vertical movement between the two frames of X-ray image data selected for stereoscopic viewing. Therefore, the image extraction unit 21 confirms whether there is vertical movement between the two frames of X-ray image data that are candidates for the left-eye X-ray image data and the right-eye X-ray image data. Display processing can be performed. In other words, the image extraction unit 21 can be provided with a user interface function for avoiding selection of X-ray image data that has vertical movement in an organ or the like.

  FIG. 5 is a diagram showing an example in which a horizontal line is displayed on the selection screen of stereoscopic X-ray image data displayed on the display device 7 by the image extraction unit 21 shown in FIG.

  As shown in FIG. 5, the left-eye and right-eye X-ray image data can be displayed as candidates, and the horizontal lines can be superimposed or displayed in parallel. That is, the image extraction unit 21 can perform display processing for displaying a horizontal line on the display device 7 as auxiliary information for selecting appropriate two-frame X-ray image data that does not move for stereoscopic viewing. .

  Thereby, the operator can confirm whether or not a portion having movement such as an organ is moving vertically between the selected two frames of X-ray image data.

  As another example of the display processing, two frames of X-ray image data that are candidates for left-eye and right-eye X-ray image data can be alternately displayed at predetermined intervals such as 0.2 seconds. That is, it is possible to confirm whether there is vertical movement due to breathing or heartbeat between the X-ray image data by display processing for alternately displaying two frames of X-ray image data in terms of time.

  In addition, when the observation target is specified as an aneurysm or a blood vessel, it is desirable that the observation target is depicted in a stereoscopic image at an appropriate angle. Therefore, when the contour extraction of the part to be observed can be performed by image processing such as edge extraction processing, two frames of the part extracted by the contour extraction are rendered three-dimensionally at an appropriate angle. The image extraction unit 21 may automatically select and present the X-ray image data.

  As a practical example, two frames having an imaging angle difference capable of stereoscopically viewing the entire aneurysm by a process of selecting X-ray image data of two frames when the display area of the aneurysm is maximized, etc. The X-ray image data can be automatically selected by the image extraction unit 21 as left-eye and right-eye X-ray image data. Alternatively, two frames of X-ray image data having an imaging angle difference such that a target blood vessel can be stereoscopically viewed without overlapping by a determination process of whether or not a plurality of target blood vessel regions overlap is used for the left eye and the right eye X The image extraction unit 21 can also automatically select the line image data.

  The sense of depth of the stereoscopic image changes depending on the region of interest and the display size. For example, when the width of the displayed region of interest is as large as about 30 cm, a sufficient sense of depth can be obtained even if the angle difference between the left-eye and right-eye X-ray image data is relatively small. However, when the width of the displayed region of interest is as small as about 1 cm, the sense of depth cannot be obtained unless the angle difference between the left-eye and right-eye X-ray image data is increased.

  Therefore, the image extraction unit 21 performs the left-eye X according to the size of the region of interest specified as the region of interest (ROI) by the operation of the input device 6 and the display size of the stereoscopic X-ray image data. An appropriate imaging angle difference between the line image data and the right-eye X-ray image data can be automatically set.

  An appropriate imaging angle difference can be determined in advance for each size of the region of interest and display size of the stereoscopic image, and can be stored in a database. The appropriate imaging angle difference value itself can be determined empirically or by simulation. Empirically, an appropriate imaging angle difference is in the range of 1 to 4 degrees as described above. Accordingly, the size of the region of interest and the display size of the stereoscopic image are associated with the imaging angle difference in the range of 1 to 4 degrees.

  Then, the image extraction unit 21 uses the X-ray image data for the left eye and the X-ray for the right eye having the appropriate imaging angle difference candidate and the appropriate imaging angle difference according to the size of the region of interest and the display size of the stereoscopic image. At least one of the image data candidates can be presented on the display device 7.

  In addition, when printing the X-ray image data for the left eye and the X-ray image data for the right eye as a single stereoscopic image, the left-eye X-ray image data and the right-eye X-ray image data are limited due to limitations on stereoscopic viewing. Both ends of the X-ray image data are not printed. For this reason, it is important that the region of interest is included in the display range.

  A stereoscopic image including a region of interest can be enlarged and printed or displayed. Therefore, it is important that the region of interest is included in the display range not only when the region of interest is output at the same magnification but also when the region of enlargement is output.

  Therefore, the image extraction unit 21 uses the left-eye X-ray image data and the left-eye X-ray image data so that the region of interest designated as the ROI by the operation of the input device 6 is included in the range displayed as the stereoscopic X-ray image data. It is possible to limit at least one of frames that can be selected as a display target from the enlargement ratio when the X-ray image data for the right eye is enlarged and displayed and the X-ray image data of a plurality of frames stored in the image memory 20. it can.

  Specifically, ROI designation information is input to the image extraction unit 21 by operating the input device 6. The image extraction unit 21 can automatically determine whether or not the ROI is included in the display range of certain X-ray image data by threshold processing for the position of the ROI. If the ROI is determined to be out of the display range by the threshold processing, the X-ray image data of the corresponding frame cannot be selected for stereoscopic viewing. Alternatively, an upper limit can be set for the enlargement ratio.

  Conversely, when the proportion of the region of interest in the stereoscopic image is small, it is difficult to obtain a stereoscopic effect. Therefore, a lower limit can be set for the enlargement ratio. The lower limit of the enlargement ratio can be determined in advance for each display condition such as the ROI size and the stereoscopic image display size by empirical or simulation in the same manner as an appropriate imaging angle difference.

  The image extraction unit 21 can automatically adjust the display direction in addition to the enlargement ratio. As a specific example, when X-ray image data is acquired by moving the imaging system 2 in the head-to-tail (CRA) direction and the caudal (CAU) direction, the parallax direction of the X-ray image data of a plurality of frames is The horizontal direction of the display device 7 is not obtained. Therefore, when the parallax direction of the X-ray image data is not the horizontal direction of the display device 7, the image extraction unit 21 is in an appropriate direction with respect to the X-ray image data for the left eye and the X-ray image data for the right eye. It can be configured to perform coordinate conversion processing for display.

  FIG. 6 is a diagram illustrating an example in which coordinate transformation is performed on X-ray image data in the image extraction unit 21 illustrated in FIG. 1.

  As shown in FIG. 6A, even when X-ray image data is acquired by swinging the X-ray tube 8A and the X-ray detector 9 in the HF (Head Foot) direction of the subject O, FIG. As shown in FIG. 6B and FIG. 6C, the X-ray image data can be rotated so that the HF direction is the horizontal direction of the display device 7. That is, the swing direction of the imaging system 2 can be set to the horizontal direction of the display device 7 by coordinate conversion processing such as rotation processing or inversion processing of X-ray image data. Thereby, the HF direction that is the swing direction of the imaging system 2 is the direction between the line-of-sight directions E and Y of the left and right eyes. As a result, it is possible to generate stereoscopic left-eye X-ray image data and right-eye X-ray image data whose positions are shifted from each other in the horizontal direction in accordance with the viewing directions E and Y of the left and right eyes.

  The warning unit 22 outputs warning information to a desired output device when it is inappropriate to output the X-ray image data for the left eye and the X-ray image data for the right eye extracted by the image extraction unit 21. It has a function to output.

  As a typical example of conditions in which it is inappropriate to output the X-ray image data for the left eye and the X-ray image data for the right eye extracted by the image extraction unit 21, the X-ray image data for the left eye and the right eye Indicating the degree of contrast of the contrast medium between the X-ray image data for the left eye and the X-ray image data for the right eye when the movement of the subject in the vertical direction is detected with the X-ray image data for the left eye There are cases where it is determined that the difference amount is greater than or equal to the threshold value or greater than the threshold value. Therefore, the warning unit 22 can be configured to output warning information on the condition of at least one of these two cases.

  The object movement detection process can be executed by the warning unit 22 by a known method. Examples of the motion detection processing include threshold processing for the amount of change in the marker position and threshold processing for the amount of movement of the contour detected by edge detection.

  The warning information may be any information such as a message, voice, or lighting or blinking of a warning lamp. Therefore, although FIG. 1 shows an example in which warning information is displayed as a message on the display device 7, a desired device can be provided for outputting warning information.

  This makes it possible to avoid selection of X-ray image data that makes stereoscopic vision difficult due to heartbeat and breathing movements, and selection of X-ray image data that is abnormal in contrast agent staining in angiographic imaging. That is, it is possible to prevent the output of a still image that is difficult to stereoscopically view.

  The output unit 23 has a function of outputting the X-ray image data for the left eye and the X-ray image data for the right eye extracted by the image extraction unit 21 to the designated device 5 as X-ray image data for stereoscopic viewing. Examples of the device 5 that is an output destination of stereoscopic X-ray image data include a printer 5A and a media recording device 5B.

  If the left-eye X-ray image data and the right-eye X-ray image data are output to a printer 5A having a stereoscopic image printing function, the stereoscopic image can be printed on dedicated paper. As a print paper for stereoscopic images, there is known a paper in which a film on which irregularities are arranged with a screen line number different from the screen line number for printing is attached to the printed paper.

  On the other hand, X-ray image data for the left eye and X-ray image data for the right eye can be output to the media recording device 5B as data in a desired format such as the MPO format for stereoscopic image data. Examples other than the data storage method using the MPO format include a method for storing data as one data file, a method for storing data as two data files, and a method for storing data as three data files.

  The method of saving as one data file is a method in which left-eye X-ray image data and right-eye X-ray image data are arranged side by side to form one data file. The method of saving as two data files is a method of adding two header files specifying header data for left eye or right eye to two frames of X-ray image data, respectively. The method of saving as three data files defines two frames of X-ray image data as two data files, and defines whether each data file is X-ray image data for the left eye or X-ray image data for the right eye. This method creates a file to be executed.

  When the X-ray image data for the left eye and the X-ray image data for the right eye are recorded as data of a predetermined format for stereoscopic images on a recording medium such as a USB (Universal Serial Bus) memory or an optical disk from the media recording device 5B, the patient Or an operator can print a stereoscopic image. Alternatively, the stereoscopic image can be displayed on a still image display device such as a digital photo frame. Further, if data is transferred to the mobile device, a stereoscopic image can be displayed on the display of the mobile device.

  In particular, since a stereoscopic image printer is expensive, it is possible to print a medical image as a stereoscopic image by a printer provided with a stereoscopic image printer. For this reason, the equipment of the stereoscopic image printer in the medical institution can be omitted.

  Further, as an example of utilizing the printed stereoscopic image, a stereoscopic image such as a blood vessel image can be pasted on a medical chart and used as diagnostic information. For this reason, it is useful particularly when a paper medical chart is used or when an electronic medical chart cannot be used such as communication between different medical institutions.

However, when taking a medical image as a stereoscopic image outside a medical institution, protection of personal information is important. Therefore, it is desirable to embed security information in the X-ray image data for stereoscopic images. Therefore, for example, the left eye X-ray image data and the right-eye data are encrypted so that the output unit 23 can display only when the left-eye X-ray image data and the right-eye X-ray image data are prepared. The X-ray image data can be individually output to the media recording device 5B. Alternatively, the output unit 23 is configured to delete or anonymize personal information such as the patient's name accompanying the X-ray image data for the left eye and the X-ray image data for the right eye and output it to the media recording device 5B. You can also.
Next, the operation and action of the X-ray imaging apparatus 1 incorporating the medical image processing apparatus 16 will be described.

  First, a plurality of frames of X-ray image data corresponding to different imaging angles of the subject O are collected. Therefore, the subject O is set on the top plate of the bed 11. Further, a contrast agent is injected into the subject O from the contrast agent injection device 14 as necessary. When the start of imaging is instructed by operating the input device 6, a control signal is output from the imaging position control device 13 of the control system 3, and the drive mechanism 7 is driven. As a result, the X-ray irradiation unit 8 and the X-ray detector 9 move as shown in FIG.

  On the other hand, a high voltage is applied from the high voltage generator 12 of the control system 3 to the X-ray tube 8 </ b> A of the X-ray irradiation unit 8. As a result, X-rays are exposed from the X-ray tube 8A to the imaging region of the subject O at the timing when the X-ray tube 8A and the X-ray detector 9 reach the predetermined rotation angle and position. Then, X-rays that have passed through the subject O are detected by the X-ray detector 9.

  Next, an X-ray detection signal is output from the X-ray detector 9 to the medical image processing apparatus 16 via the A / D converter 15. Thereby, the X-ray image generation unit 17 acquires digitized X-ray detection data. The X-ray image generation unit 17 generates X-ray image data by performing known data processing on the X-ray detection data.

  The X-ray image data generated in the X-ray image generation unit 17 is given to the X-ray image acquisition unit 18. Then, three or more frames of X-ray image data corresponding to at least two different X-ray irradiation directions are acquired in the X-ray image acquisition unit 18 in the same flow.

  Next, the X-ray image acquisition unit 18 gives X-ray image data of a plurality of frames to the display processing unit 19. Then, the display processing unit 19 specifies the X-ray image data for the left eye and the X-ray image data for the right eye according to the stereoscopic image display method and imaging conditions, and displays the X-ray image that can be stereoscopically displayed. It is displayed on the device 7. Further, the X-ray image data of a plurality of frames acquired by the X-ray image acquisition unit 18 is stored in the image memory 20.

  Next, the image extraction unit 21 extracts left-eye X-ray image data and right-eye X-ray image data from a plurality of frames of X-ray image data stored in the image memory 20. Extraction of the X-ray image data for the left eye and the X-ray image data for the right eye can be performed manually or automatically via a user interface as illustrated in FIGS. 3, 4, and 5.

  However, the image extraction unit 21 determines X-ray image data for the left eye and X-ray image data for the right eye based on the imaging angle information attached to the X-ray image data of a plurality of frames. Further, necessary image processing such as coordinate conversion processing shown in FIG.

  Next, the warning unit 22 determines whether or not it is inappropriate to output the left-eye X-ray image data and the right-eye X-ray image data extracted by the image extraction unit 21. . For example, whether or not the amount of motion between the X-ray image data for the left eye and the X-ray image data for the right eye exceeds a threshold value, or whether or not the contrast degree of the contrast agent exceeds the threshold value It is determined in the part 22. If it is determined that the condition is met, the warning unit 22 outputs warning information.

  In this case, the operator can change one or both of the X-ray image data for the left eye and the X-ray image data for the right eye to other X-ray image data via the user interface. This makes it possible to extract two frames of X-ray image data suitable for stereoscopic viewing.

  On the other hand, if the warning unit 22 determines that it is not appropriate to output the left-eye X-ray image data and the right-eye X-ray image data, the output unit 23 determines that the left-eye X-ray image data and the right-eye X-ray image data are not appropriate. X-ray image data and right-eye X-ray image data are output to the designated device 5.

  For example, if the stereoscopic image data is output to the printer 5A, the stereoscopic image can be printed on paper. If the stereoscopic image data is output to the medium via the media recording device 5B, the stereoscopic image data can be provided to the patient. Thereby, a patient can obtain a stereoscopic image, or a doctor can use the stereoscopic image by pasting it on a medical chart.

  In other words, the medical image processing apparatus 16 as described above has an imaging angle that attaches two frames of X-ray image data suitable for stereoscopic viewing to X-ray image data from a plurality of frames of X-ray image data collected from different angles. It is extracted based on the information, and the extracted two-frame X-ray image data is specified for the left eye or for the right eye, and can be output for a still image.

  For this reason, according to the medical image processing apparatus 16, it is possible to avoid the output of X-ray image data that is difficult to be viewed stereoscopically. As a result, it is possible to print an X-ray image that can prevent stereoscopic image printing mistakes and reliably perform stereoscopic viewing.

  In particular, when X-ray image data is collected from three or more directions, the X-ray image data for the left eye and the X-ray image data for the right eye are different from those of a photographing device such as a digital camera for stereoscopic images. Is not specified at the time of shooting. Further, when photographing is performed by moving one photographing system 2, it is not determined whether the left-eye or right-eye is used even if X-ray image data from two directions is specified for stereoscopic viewing. .

  Moreover, there is no color information in the X-ray image, and the X-ray image is an integrated image of X-ray detection data transmitted through a plurality of organs. Further, an X-ray image of a human body is an image in which an organ is complicated and complicated, and it is not easy to recognize a structure. For this reason, the operation of extracting two frames of X-ray image data for stereoscopic vision from a large number of X-ray image data by visual observation or the like and determining whether it is for the left eye or for the right eye requires labor and skill. Cost. In addition, when X-ray image data having an inappropriate angle difference or X-ray image data with motion is extracted, even if it is determined for the left eye or the right eye, stereoscopic viewing can be performed satisfactorily. It becomes difficult to do.

  On the other hand, the medical image processing apparatus 16 automatically or semi-automatically specifies whether two frames of X-ray image data separated by a predetermined angle suitable for stereoscopic vision are for the left eye or the right eye. Can be extracted. In addition, the medical image processing apparatus 16 includes a user interface for manually determining or changing stereoscopic X-ray image data. For this reason, it is possible to acquire an X-ray image as a stereoscopic image only by performing simple settings and operations. And it becomes possible for a doctor to stick an X-ray stereoscopic image on a medical chart, or to provide an X-ray stereoscopic image printed on a patient. That is, a medical image can be effectively used as a stereoscopic image.

(Second Embodiment)
FIG. 7 is a configuration diagram of an ultrasonic diagnostic apparatus including a medical image processing apparatus according to the second embodiment of the present invention.

  The medical image processing apparatus 16A shown in FIG. 7 is different from the medical image processing apparatus 16 in the first embodiment shown in FIG. 1 in that it is built in the ultrasonic diagnostic apparatus 30. Since it is not substantially different from the medical image processing apparatus 16 in the first embodiment, the same components are denoted by the same reference numerals and description thereof is omitted.

  As shown in FIG. 7, a medical image processing apparatus 16 </ b> A having the same function as the medical image processing apparatus 16 shown in FIG. 1 can be incorporated in the control system 31 of the ultrasonic diagnostic apparatus 30. The ultrasonic probe 32 provided in the ultrasonic diagnostic apparatus 30 is provided with a sensor 33 for detecting an imaging direction. The angle information of the ultrasonic probe 32 detected by the sensor 33 is output to the control system 31 as imaging angle information together with the ultrasonic reception signal collected by the ultrasonic probe 32.

  The control system 31 sends and receives ultrasonic waves from the ultrasonic probe 32 toward the subject by applying electrical signals to a plurality of ultrasonic transducers provided in the ultrasonic probe 32, and is collected by the ultrasonic probe 32. This is a system for generating ultrasonic diagnostic image data based on an ultrasonic reception signal. As a specific example, three-dimensional (3D) ultrasonic diagnostic image data of a fetus or the like can be collected almost in real time.

  Imaging angle information can be attached to the ultrasonic diagnostic image data generated in the control system 31 for each frame. The ultrasonic diagnostic image data accompanied by the imaging angle information can be stored in the image memory of the medical image processing apparatus 16A.

  The image extraction unit of the medical image processing apparatus 16A can extract the left-eye ultrasound diagnostic image data and the right-eye ultrasound diagnostic image data from the image memory in the same flow as in the first embodiment. . That is, based on imaging angle information attached to each of three or more frames of ultrasonic image data of a subject imaged from at least two different directions, the left-eye image data is obtained from the plurality of frames of ultrasonic image data. Ultrasonic image data and right-eye ultrasonic image data can be extracted. In addition, the image extraction unit can execute a display process necessary for displaying a stereoscopic image such as a coordinate conversion process.

  The output unit of the medical image processing apparatus 16A converts the left-eye ultrasonic image data and the right-eye ultrasonic image data extracted by the image extraction unit into data for writing to a print or a medium, and printing the printer. It can be output to the device 5 such as 5A or the media recording device 5B. At this time, the warning unit of the medical image processing apparatus 16A outputs warning information if it is inappropriate to output the left-eye ultrasound image data and the right-eye ultrasound image data. be able to.

  Thereby, an ultrasonic image in which a fetus or the like is depicted can be used as a stereoscopic image for diagnosis or provided to a patient. Further, it is possible to prevent unnecessary printing mistakes and inappropriate provision of data for stereoscopic images.

(Other embodiments)
Although specific embodiments have been described above, the described embodiments are merely examples, and do not limit the scope of the invention. The novel methods and apparatus described herein can be implemented in a variety of other ways. Various omissions, substitutions, and changes can be made in the method and apparatus described herein without departing from the spirit of the invention. The appended claims and their equivalents include such various forms and modifications as are encompassed by the scope and spirit of the invention.

  For example, the medical image processing apparatus 16 according to the first embodiment uses a plurality of frames of X-ray image data, and the medical image processing apparatus 16A according to the second embodiment uses a plurality of frames of ultrasound image data, respectively. An example of extracting medical image data and right-eye medical image data has been described. Extracting left-eye medical image data and right-eye medical image data for stereoscopic vision from medical image data collected by other modalities Can do.

  That is, not only an ultrasonic diagnostic apparatus and an X-ray diagnostic apparatus, but also an X-ray CT (computed tomography) apparatus, a magnetic resonance imaging (MRI), a positron emission computed tomography (PET) apparatus or a single unit. The medical image data collected by any diagnostic imaging apparatus such as a single photon emission computed tomography (SPECT) apparatus can be used as a stereoscopic image target.

  Also, in the case of imaging by an X-ray diagnostic apparatus, the imaging system is rotated by 180 degrees or more, not only when the projected image of a photon transmitted through the subject and detected by the X-ray detector is displayed as an X-ray image. Thus, when collecting X-ray image data, a stereoscopic image can be displayed in the same flow. When X-ray image data is collected by rotating the imaging system by 180 degrees or more, X-ray image data corresponding to a desired slice position is generated by 3D image reconstruction processing using the X-ray image data as original data. Can do. Therefore, it is possible to generate and extract two frames of X-ray image data having two parallaxes suitable for stereoscopic vision and output them to the print or media as X-ray image data for the left eye and X-ray image data for the right eye. .

DESCRIPTION OF SYMBOLS 1 X-ray imaging device 2 Imaging system 3 Control system 4 Data processing system 5 Data output device 5A Printer 5B Media recording device 6 Input device 7 Display device 8 X-ray irradiation part 8A X-ray tube 9 X-ray detector 10 Drive mechanism DESCRIPTION OF SYMBOLS 11 Bed 12 High voltage generator 13 Imaging position controller 14 Contrast medium injector 15 A / D converters 16 and 16A Medical image processing apparatus (computer)
17 X-ray image generation unit 18 X-ray image acquisition unit 19 Display processing unit 20 Image memory 21 Image extraction unit 22 Warning unit 23 Output unit 24 Glasses 30 Ultrasonic diagnostic apparatus 31 Control system 32 Ultrasonic probe 33 Sensor O Subject

Claims (24)

Medical image data for the left eye from the medical image data of the plurality of frames based on imaging angle information attached to each of three or more frames of medical image data of the subject imaged from at least two different directions. And an image extraction unit that respectively extracts medical image data for the right eye,
An output unit that outputs the medical image data for the left eye and the medical image data for the right eye as medical image data for stereoscopic viewing to a specified device;
Equipped with a,
The image extraction unit extracts one frame of medical image data that is one candidate of the left-eye medical image data and the right-eye medical image data according to the designation information input from the input device, and extracts the extracted Ru is composed of medical image data of two frames on both sides are captured at a predetermined angle by a different direction so as to display the automatically extracted and a display device as the other candidate for one frame of the medical image data Medical image processing apparatus. Medical image data for the left eye from the medical image data of the plurality of frames based on imaging angle information attached to each of three or more frames of medical image data of the subject imaged from at least two different directions. And an image extraction unit that respectively extracts medical image data for the right eye,
An output unit that outputs the medical image data for the left eye and the medical image data for the right eye as medical image data for stereoscopic viewing to a specified device;
With
The image extraction unit, based on the imaging angle information, the medical image processing is configured so as to display on the display device an image pickup angle difference between the medical image data of the medical image data and the right-eye for the eye apparatus. Medical image data for the left eye from the medical image data of the plurality of frames based on imaging angle information attached to each of three or more frames of medical image data of the subject imaged from at least two different directions. And an image extraction unit that respectively extracts medical image data for the right eye,
An output unit that outputs the medical image data for the left eye and the medical image data for the right eye as medical image data for stereoscopic viewing to a specified device;
A warning unit that outputs warning information when it is inappropriate to output the medical image data for the left eye and the medical image data for the right eye; and
With
Wherein the image extraction unit, the medical image processing apparatus configured to extract according to the specification information inputted from the input device at least one of the medical image data and the medical image data for the right eye for the left eye. The warning unit detects the movement of the subject in the vertical direction between the medical image data for the left eye and the medical image data for the right eye, and the medical image data for the left eye and the medical image for the right eye. The warning information is output with the condition as at least one of the cases where the difference amount of the index indicating the contrast degree of the contrast medium between the data and the data is determined to be greater than or greater than the threshold. The medical image processing apparatus according to claim 3 . Medical image data for the left eye from the medical image data of the plurality of frames based on imaging angle information attached to each of three or more frames of medical image data of the subject imaged from at least two different directions. And an image extraction unit that respectively extracts medical image data for the right eye,
An output unit that outputs the medical image data for the left eye and the medical image data for the right eye as medical image data for stereoscopic viewing to a specified device;
With
Wherein the image extraction unit, the medical image processing configured to display the scroll bar on the display device for designating at least one of the medical image data of the medical image data and the right-eye for the left eye by operating the input device apparatus. Medical image data for the left eye from the medical image data of the plurality of frames based on imaging angle information attached to each of three or more frames of medical image data of the subject imaged from at least two different directions. And an image extraction unit that respectively extracts medical image data for the right eye,
An output unit that outputs the medical image data for the left eye and the medical image data for the right eye as medical image data for stereoscopic viewing to a specified device;
With
The image extracting unit is configured to perform display processing for confirming the presence or absence of motion between the medical image data of two frames made of the medical image data and the candidate of the medical image data for the right eye for the eye Medical image processing apparatus. Medical image data for the left eye from the medical image data of the plurality of frames based on imaging angle information attached to each of three or more frames of medical image data of the subject imaged from at least two different directions. And an image extraction unit that respectively extracts medical image data for the right eye,
An output unit that outputs the medical image data for the left eye and the medical image data for the right eye as medical image data for stereoscopic viewing to a specified device;
With
The output unit includes the left-eye medical image data and the right-eye medical image as encrypted data that can be displayed only when the left-eye medical image data and the right-eye medical image data are prepared. the medical image processing apparatus configured to output data, respectively. Medical image data for the left eye from the medical image data of the plurality of frames based on imaging angle information attached to each of three or more frames of medical image data of the subject imaged from at least two different directions. And an image extraction unit that respectively extracts medical image data for the right eye,
An output unit that outputs the medical image data for the left eye and the medical image data for the right eye as medical image data for stereoscopic viewing to a specified device;
With
Wherein the image extraction unit, the medical image processing apparatus configured to perform a coordinate conversion processing for displaying in the proper orientation with respect to the medical image data and the medical image data for the right eye for the left eye. Medical image data for the left eye from the medical image data of the plurality of frames based on imaging angle information attached to each of three or more frames of medical image data of the subject imaged from at least two different directions. And an image extraction unit that respectively extracts medical image data for the right eye,
An output unit that outputs the medical image data for the left eye and the medical image data for the right eye as medical image data for stereoscopic viewing to a specified device;
With
The image extracting unit appropriately captures between the left-eye medical image data and the right-eye medical image data according to the size of the designated region of interest and the display size of the stereoscopic medical image data. angular difference and the medical image processing apparatus which is configured to present on the display device at least one of the medical image data and the candidate of the medical image data for the right eye for the eye with a proper imaging angle difference. Medical image data for the left eye from the medical image data of the plurality of frames based on imaging angle information attached to each of three or more frames of medical image data of the subject imaged from at least two different directions. And an image extraction unit that respectively extracts medical image data for the right eye,
An output unit that outputs the medical image data for the left eye and the medical image data for the right eye as medical image data for stereoscopic viewing to a specified device;
With
The image extraction unit enlarges and displays the medical image data for the left eye and the medical image data for the right eye so that the designated region of interest is included in a range displayed as the medical image data for stereoscopic viewing. magnification and a medical image processing apparatus which is configured to apply a limit to at least one of the selectable frame for display from the medical image data of the plurality of frames in the case of. The image extraction unit converts the medical image data for the left eye and the medical image data for the right eye as two frames of medical image data captured in different directions by a preset angle in a range of 1 to 4 degrees. The medical image processing apparatus according to claim 2 , wherein the medical image processing apparatus is configured to perform extraction. The image extraction unit extracts medical image data for two frames in accordance with designation information input from an input device, and relatively compares the subject based on imaging angle information attached to the medical image data for two frames. The medical image data of the frame viewed from the left side is used as the medical image data for the left eye, while the medical image data of the frame viewed from the right side of the subject is used as the medical image data for the right eye. The medical image processing apparatus according to any one of claims 2 to 6 . The image extraction unit extracts one of the medical image data for the left eye and the medical image data for the right eye according to the designation information input from the input device, and extracts the medical image data for the left eye or the right eye The medical image according to any one of claims 2 to 6, wherein the other is automatically extracted as medical image data captured in a direction different from the medical image data by a predetermined angle. Processing equipment. The said image extraction part is comprised so that the medical image data for the left eyes and the medical image data for the right eyes may be extracted from ultrasonic image data or X-ray image data of a plurality of frames . The medical image processing apparatus according to item 1 . Medical image data for the left eye from the medical image data of the plurality of frames based on imaging angle information attached to each of three or more frames of medical image data of the subject imaged from at least two different directions. And extracting medical image data for right eye and right eye respectively
Outputting the left-eye medical image data and the right-eye medical image data as medical image data for stereoscopic viewing to a designated device;
I have a,
One frame of medical image data that is one candidate of the left-eye medical image data and the right-eye medical image data is extracted according to the designation information input from the input device, and the extracted one-frame medical image data predetermined angle by automatically extracted medical image processing method Ru is displayed on a display device the medical image data of two frames on both sides are captured in different directions as the other candidates against. Computer
Medical image data for the left eye from the medical image data of the plurality of frames based on imaging angle information attached to each of three or more frames of medical image data of the subject imaged from at least two different directions. And an image extraction unit that respectively extracts medical image data for right eye, and an output unit that outputs the medical image data for left eye and the medical image data for right eye as stereoscopic medical image data to a designated device,
To function as,
The image extraction unit extracts one frame of medical image data that is one candidate of the left-eye medical image data and the right-eye medical image data according to the designation information input from the input device, and extracts the extracted Ru is composed of medical image data of two frames on both sides are captured at a predetermined angle by a different direction so as to display the automatically extracted and a display device as the other candidate for one frame of the medical image data Medical image processing program. Computer
Medical image data for the left eye from the medical image data of the plurality of frames based on imaging angle information attached to each of three or more frames of medical image data of the subject imaged from at least two different directions. And an image extraction unit for extracting medical image data for the right eye, and
An output unit that outputs the medical image data for the left eye and the medical image data for the right eye as medical image data for stereoscopic viewing to a designated device;
Function as
The image extraction unit is configured to display, on a display device, an imaging angle difference between the medical image data for the left eye and the medical image data for the right eye based on the imaging angle information. program. Computer
Medical image data for the left eye from the medical image data of the plurality of frames based on imaging angle information attached to each of three or more frames of medical image data of the subject imaged from at least two different directions. And an image extraction unit for extracting medical image data for the right eye,
An output unit that outputs the medical image data for the left eye and the medical image data for the right eye to the designated device as medical image data for stereoscopic viewing; and
A warning unit for outputting warning information when it is inappropriate to output the medical image data for the left eye and the medical image data for the right eye;
Function as
The medical image processing program configured to extract at least one of the medical image data for the left eye and the medical image data for the right eye in accordance with designation information input from an input device. Computer
Medical image data for the left eye from the medical image data of the plurality of frames based on imaging angle information attached to each of three or more frames of medical image data of the subject imaged from at least two different directions. And an image extraction unit for extracting medical image data for the right eye, and
An output unit that outputs the medical image data for the left eye and the medical image data for the right eye as medical image data for stereoscopic viewing to a designated device;
Function as
The image extraction unit is configured to cause a display device to display a scroll bar for designating at least one of the left-eye medical image data and the right-eye medical image data by operating an input device. program. Computer
Medical image data for the left eye from the medical image data of the plurality of frames based on imaging angle information attached to each of three or more frames of medical image data of the subject imaged from at least two different directions. And an image extraction unit for extracting medical image data for the right eye, and
An output unit that outputs the medical image data for the left eye and the medical image data for the right eye as medical image data for stereoscopic viewing to a designated device;
Function as
The image extraction unit is configured to perform a display process for confirming the presence or absence of motion between two frames of medical image data that are candidates for the left-eye medical image data and the right-eye medical image data. Medical image processing program. Computer
Medical image data for the left eye from the medical image data of the plurality of frames based on imaging angle information attached to each of three or more frames of medical image data of the subject imaged from at least two different directions. And an image extraction unit for extracting medical image data for the right eye, and
An output unit that outputs the medical image data for the left eye and the medical image data for the right eye as medical image data for stereoscopic viewing to a designated device;
Function as
The output unit includes the left-eye medical image data and the right-eye medical image as encrypted data that can be displayed only when the left-eye medical image data and the right-eye medical image data are prepared. A medical image processing program configured to output data respectively. Computer
Medical image data for the left eye from the medical image data of the plurality of frames based on imaging angle information attached to each of three or more frames of medical image data of the subject imaged from at least two different directions. And an image extraction unit for extracting medical image data for the right eye, and
An output unit that outputs the medical image data for the left eye and the medical image data for the right eye as medical image data for stereoscopic viewing to a designated device;
Function as
The medical image processing program configured to perform a coordinate conversion process for displaying the medical image data for the left eye and the medical image data for the right eye in an appropriate orientation. Computer
Medical image data for the left eye from the medical image data of the plurality of frames based on imaging angle information attached to each of three or more frames of medical image data of the subject imaged from at least two different directions. And an image extraction unit for extracting medical image data for the right eye, and
An output unit that outputs the medical image data for the left eye and the medical image data for the right eye as medical image data for stereoscopic viewing to a designated device;
Function as
The image extracting unit appropriately captures between the left-eye medical image data and the right-eye medical image data according to the size of the designated region of interest and the display size of the stereoscopic medical image data. A medical image processing program configured to present at least one of the left-eye medical image data and the right-eye medical image data having the angle difference and the appropriate imaging angle difference on a display device. Computer
Medical image data for the left eye from the medical image data of the plurality of frames based on imaging angle information attached to each of three or more frames of medical image data of the subject imaged from at least two different directions. And an image extraction unit for extracting medical image data for the right eye, and
An output unit that outputs the medical image data for the left eye and the medical image data for the right eye as medical image data for stereoscopic viewing to a designated device;
Function as
The image extraction unit enlarges and displays the medical image data for the left eye and the medical image data for the right eye so that the designated region of interest is included in a range displayed as the medical image data for stereoscopic viewing. A medical image processing program configured to limit at least one of an enlargement ratio and a frame that can be selected as a display target from the plurality of frames of medical image data.

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