JP4467927B2 - Ultrasonic diagnostic equipment - Google Patents

Description

  The present invention relates to a guide for inserting a treatment needle such as a puncture needle or a PEIT needle, a radio frequency puncture needle, a microwave puncture needle into a target site, and an ultrasonic diagnostic apparatus for determining a therapeutic effect before and after the puncture.

  For the purpose of treating a tumor part such as cancer of an organ, a puncture needle or a treatment needle is often inserted into a target site under an ultrasonic guide, and is called an ultrasonic puncture method.

  When inserting these needles, the ultrasonic probe of the ultrasonic diagnostic apparatus to be used is provided with a guide mechanism for setting the insertion direction of the puncture needle, or a puncture adapter is attached to the ultrasonic diagnostic apparatus. The needles are inserted to position these needles within the diagnostic field of view. In addition, on the ultrasound diagnostic apparatus screen, the insertion path of the puncture needle previously installed in the guide mechanism or puncture adapter is preset and referred to as an index, and this insertion path is positioned at the target site. Then, the puncture needle is inserted.

  Cancer coagulation treatment is performed by collecting cells at the target site from the inserted puncture needle or injecting ethanol or the like into the target site via the puncture needle. In recent years, ablation puncture needles that radiate microwaves or radio waves and cauterize cancerous parts are inserted and cancer ablation treatment is performed (for example, Non-Patent Document 1).

  In insertion performed under an ultrasonic guide, the puncture needle is thin and the insertion direction is almost parallel to the ultrasonic beam of the ultrasonic diagnostic apparatus at a shallow angle. In some cases, no signal is obtained, and the position of the needle cannot be stably and clearly displayed on the ultrasonic image.

  Also, in the process of insertion, the puncture needle bends in a direction with less resistance due to the resistance of the organ or tissue, and is inserted with a deviation from the width of the tomographic image direction (also called slice) of the ultrasonic beam, The puncture needle does not exist in the ultrasonic tomographic plane. Furthermore, since organs and tissues move in a respiratory manner, the puncture needle may shift out of the ultrasonic beam as the visual field after insertion.

Proposals have been proposed for emphasizing reflected signals for which sufficient intensity cannot be obtained (for example, see Patent Document 1), and for correcting an ultrasonic beam on a puncture needle that is out of the field of view (for example, see Patent Document 2). Has been.
Edited by Shigehiro Kokubun and Fuminori Moriyasu, “Practical Liver Cancer Radiocoagulation”, Nanedo, May 2002 JP 63-290550 A JP 2000-107178 A

  However, with the above-described ultrasound-guided puncture needle, the ultrasound image cannot be observed sufficiently, and the insertion operation to the target site is very difficult, and in terms of display stability and operability. The problem is not enough.

  In the treatment under ultrasound guidance, the positional relationship between the tumor and blood vessels and surrounding organs, and the positional relationship with the needle tip are observed by moving the probe to various positions on the body surface. In particular, in the case of cauterization treatment using radio waves and microwaves under ultrasound guidance, it is necessary to observe the progress during the treatment.

  In addition, there is a problem that the back of the ablation site cannot be observed from the probe position directly above the treatment site due to tissue alteration or bubbles generated due to ablation. For this reason, the puncture adapter is often removed from the probe being treated, the puncture needle and the probe are separated, and an organ or tissue including the periphery of the target region is scanned and observed with the probe in a desired direction.

  Therefore, in the treatment performed under the ultrasound guide, it is important to grasp and confirm the target region and the treated portion in three dimensions. However, in the treatment using the ultrasonic diagnostic apparatus using only the conventional puncture needle guide mechanism and the puncture adapter described above, observation is performed only in the direction in which the puncture needle related to the treatment is maintained within the slice width of the ultrasonic beam. Therefore, it is a big problem that it is difficult to grasp the three-dimensional position.

  The present invention has been made in view of the conventional problems as described above, and grasps a puncture needle related to treatment at a portion other than the slice width of the ultrasonic beam, and observes an ultrasonic image, that is, a treatment target. An object of the present invention is to provide an ultrasonic diagnostic apparatus that performs a display capable of recognizing the position of a puncture needle with respect to an organ or cancer with a three-dimensional sense.

In order to achieve the above object, according to the present invention, an ultrasonic probe including a first position and direction detection means, an ultrasonic signal from the ultrasonic probe, and ultrasonic tomographic image data or Ultrasound image means for outputting ultrasonic three-dimensional image data, second position and direction detection means, a puncture needle inserted into a living body, and first spatial coordinates with a predetermined position as a reference origin In addition, the tomographic image calculation means for reconstructing the output image data of the ultrasonic image means with reference to the detection result of the first detection means, and the output of the second detection means, the first Puncture needle display calculation means for calculating puncture needle display image data indicating the position of the full length needle portion of the puncture needle inserted into the living body and the extension portion beyond the needle tip, or any one of them, in the spatial coordinates of The tomographic image in one coordinate space Each of the result data of the calculation means and the puncture needle display calculation means is calculated and converted into second spatial coordinates with the position of the needle tip of the puncture needle calculated by the puncture needle display calculation means as a reference origin. The puncture needle display data in the second spatial coordinates is also superimposed on the ultrasonic image data in the second spatial coordinates by the reference conversion means and the needle tip reference conversion means by identifying the full length part or the extension part. The image forming means for outputting, and the monitor means for displaying the result of the image forming means. The ultrasonic image means adds the result data of the puncture needle display calculating means to the result data of the tomographic image calculating means. The image recording means for storing the acquired image data, the acquired image data read from the image recording means, and the result of the tomographic image calculation means processed in real time Real-time ultrasound image data processed to superimpose the result of the puncture needle display calculation means is output from the image construction means, two images are displayed on the monitor means, and read from the image storage means Two-point mark for distance measurement or region measurement attached to either the acquired image data or the real-time ultrasonic image data processed to superimpose the result of the puncture needle display calculation means on the result of the tomographic image calculation means An ultrasonic diagnostic apparatus wherein a boundary line of a circle, an ellipse or an arbitrary shape is duplicated at a position corresponding to the other image data in the image construction means and displayed on two screens of the monitor means, respectively. I will provide a.

  Further, according to the present invention, there is provided the ultrasonic diagnostic apparatus, wherein the first position and direction detection means is detachably provided in the ultrasonic probe.

  Furthermore, according to the present invention, the ultrasonic three-dimensional image data includes three-dimensional tomographic image data obtained by manually performing three-dimensional scanning of the ultrasonic probe and reconstructing the two-dimensional tomographic image. Three-dimensional tomographic image data obtained by mechanical three-dimensional ultrasonic probe that mechanically translates or rotates and performs three-dimensional scanning Electronic three-dimensional ultrasonic probe that electronically scans two-dimensional array probe An ultrasonic diagnostic apparatus characterized by being any one of the three-dimensional tomographic image data obtained by the above.

  Further, according to the present invention, the ultrasonic image means comprises image recording means for storing already acquired image data obtained by attaching the result data of the puncture needle display calculation means to the result data of the tomographic image calculation means. An ultrasonic diagnostic apparatus characterized by the above is provided.

  Further, according to the present invention, the ultrasonic image means includes image recording means for storing already acquired image data obtained by attaching the result data of the puncture needle display calculation means to the result data of the tomographic image calculation means, and this image The acquired image data read from the recording means is synthesized and output by the image construction means together with the result of the tomographic image calculation means and the result of the puncture needle display calculation means processed in real time. An ultrasound diagnostic apparatus is provided.

  Further, according to the present invention, the ultrasonic image means comprises image recording means for storing already acquired image data obtained by attaching the result data of the puncture needle display calculation means to the result data of the tomographic image calculation means, and this image The acquired image data read from the recording means and the real-time ultrasonic image data subjected to processing for superimposing the result of the puncture needle display calculation means on the result of the tomographic image calculation means processed in real time are the image construction means. The ultrasonic diagnostic apparatus is characterized in that two images are output from each of the images and displayed on the monitor means.

  Further, according to the present invention, the identification of the full length portion or the extension portion performed by the superimposition of the puncture needle display data by the image construction means is performed by a line or a hue whose display on the monitor means is different. An ultrasonic diagnostic apparatus is provided.

  Furthermore, according to the present invention, the identification of the full length portion or the extension portion performed by the superimposition of the puncture needle display data by the image construction means penetrates a tomographic image plane formed by a result of the tomographic image computation means. Provided is an ultrasonic diagnostic apparatus characterized in that the position is displayed on a monitor means by a mark having a different shape or hue.

  Further, according to the present invention, the superimposition of the puncture needle display data by the image constructing means is such that the needle tip mark is displayed on the monitor means by needle tip mark image data attached to the position of the needle tip. An ultrasonic diagnostic apparatus is provided.

  Further, according to the present invention, the image data of the full length portion, the extension portion, the penetrating position mark, and the needle tip mark of the puncture needle display data superimposed by the image construction means is estimated in advance. The ultrasonic diagnostic apparatus is characterized in that it is calculated and displayed by taking into account the magnitude of displacement of the puncture needle in the living body.

  Further, according to the present invention, there is provided a puncture needle display fixing means for stopping the data update of the position and direction detected by the second detection means and maintaining the data immediately before the stop, and removing or moving the puncture needle, etc. After that, the ultrasonic diagnostic apparatus is characterized in that the puncture needle image is displayed at the previous position.

  Furthermore, according to the present invention, there is provided an origin coordinate input means for changing the position of the reference origin of the second spatial coordinates to another position of the ultrasonic image displayed on the monitor means. An ultrasound diagnostic apparatus is provided.

  Furthermore, according to the present invention, the acquired image data stored in the image recording unit is an ultrasonic moving image image, CT image, MRI image, or any of these three-dimensional images. An ultrasound diagnostic apparatus is provided.

  Furthermore, according to the present invention, the acquired image data read from the image storage means or real-time ultrasonic image data subjected to processing for superimposing the result of the puncture needle display calculation means on the result of the tomographic image calculation means The distance measuring two-point mark or the area measuring circle, ellipse, or arbitrary-shaped boundary line attached to either is copied to the corresponding position of the other image data in the image construction means, and the monitoring means The ultrasonic diagnostic apparatus is characterized by being displayed on each of the two screens.

  In the present invention, the position sensor provided in the ultrasonic probe and the position sensor provided in the puncture needle calculate and calculate the position of the ultrasonic image observed by the ultrasonic probe and the position of the inserted puncture needle in the coordinate space to be set. Furthermore, since it is further reconstructed and displayed on the monitor, even if the puncture needle related to the treatment is in a portion other than the slice width of the ultrasonic beam, the ultrasonic image being observed, that is, the puncture needle for the organ or cancer to be treated The position of can be recognized with a three-dimensional sense.

  Further, since the position image of the puncture needle is displayed regardless of the operation of the ultrasonic probe, there is an advantage that the ultrasonic probe operation can be performed to improve the display image quality of the target organ or cancer.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

(First embodiment)
FIG. 1 is a block diagram showing a first embodiment of the ultrasonic diagnostic apparatus of the present invention.

  As shown in FIG. 1, the ultrasonic diagnostic apparatus of the present invention is a puncture device comprising an ultrasonic diagnostic apparatus main body 10 for processing an ultrasonic signal and outputting an image signal, an ultrasonic probe having a position sensor, and a puncture needle 22. A probe unit 20, an input unit 31 for operating the ultrasonic diagnostic apparatus main body unit 10, and a monitor 32 for displaying an image signal.

  More specifically, the ultrasonic diagnostic apparatus main body 10 includes an ultrasonic transmission unit 11, an ultrasonic reception unit 12, a B mode processing unit 13a, a color mode processing unit 13b, a display output unit 14, a CPU 15 that performs control and arithmetic processing, A plurality of cross-sectional image data obtained by detecting the movement or rotation of the connected ultrasonic probe 21 is formed into a three-dimensional image, which includes a database 16, an image storage device 17, an image construction device 18, and a cine memory 19 for storing moving images. It is a 3D ultrasonic diagnostic apparatus to be reconfigured.

  The puncture / probe unit 20 is connected to the ultrasonic transmission unit 11 and the ultrasonic reception unit 12, and includes an ultrasonic probe 21 to which a position sensor A26 is attached, a puncture needle 22 to which a position sensor B27 is attached, a position sensor A26, and a position. The position sensor receiving unit 25 receives the position signal of the sensor B27 and outputs the position data to the CPU 15 connected thereto. A puncture adapter 23 is attached to and detached from the ultrasonic probe 21.

  The input means 31 for operating the ultrasonic diagnostic apparatus main body 10 includes an operation panel 31a having function keys for function selection / operation instruction, and a keyboard or trackball input device 31b.

  In addition, when an ablation puncture needle for ablation treatment using radio waves or microwaves is used as the puncture needle 22, an ablation treatment apparatus (not shown) that drives a high-frequency radiation electrode of the ablation puncture needle is provided.

  Next, the operation and operation of this embodiment will be described.

  The ultrasonic diagnostic apparatus main body 10 has an ultrasonic probe 21 connected to the ultrasonic transmitter 11 and the ultrasonic receiver 12, and is moved at a constant speed, rotated at a constant angle, or a position sensor according to a function setting input of the scanning panel 31a. A plurality of ultrasonic tomographic image data based on any three-dimensional probe data such as the detection position of A26 is processed by the image construction device 18 and a 3D ultrasonic image signal is output. This signal is displayed on the monitor 32, and the stereoscopic observation of the organ and tumor can be performed. Note that the output of the ultrasonic receiving unit 12 corresponds to a display mode such as ultrasonic tomographic image data for shape rendering by the B-mode processing unit 13a or ultrasonic tomographic image data for Doppler blood flow rendering by the color mode processing unit 13b. Ultrasonic tomographic image data is processed and input to the display output unit 14. That is, the ultrasonic diagnostic apparatus main body 10 can display each ultrasonic tomographic image data as a two-dimensional ultrasonic tomographic image.

  Further, the ultrasonic diagnostic apparatus main body 10 is controlled by the CPU 15 to store a plurality of temporally continuous ultrasonic tomographic image data in the cine memory 19 and continuously reproduce them to monitor a moving image 32. To display. Similarly, individual ultrasonic tomographic image data is recorded in an image recording device, displayed on the monitor 32, and can be replayed at any time. Furthermore, diagnostic image data such as ultrasonic diagnostic images, CT diagnostic images, and MRI diagnostic images collected in other clinical departments can be taken into the image recording apparatus via the hospital network and displayed on the monitor 32.

  As shown in FIG. 2, the ultrasonic probe 21 is equipped with a position sensor A26, and the six-axis coordinates of the ultrasonic probe 21 in the coordinate space, that is, the three-axis coordinates of X, Y, Z, and 瘁 A 竅 A Each value of the rotation angle of each axis is detected by the position sensor receiving unit 25. For example, this coordinate space having the installation position of the position sensor receiver 25 as the origin is defined as a first coordinate space. This detected data is input to the CPU 15 as probe direction data, and provides three-dimensional data in the slice direction of the ultrasonic tomographic image captured by the ultrasonic probe 21. On the other hand, the 6-axis coordinate in the first coordinate space of the puncture needle 22 is detected by the position sensor B27 attached to the puncture needle 22, and the position and insertion direction of the puncture needle 22 are also provided to the CPU 15.

  Each of the position sensor A26 and the position sensor B27 can be used as an ultrasonic probe of a general ultrasonic diagnostic apparatus or a puncture needle for puncture treatment not according to the present embodiment, and can be detachably provided. good.

  The database 16 stores various settings. For example, the standard of the puncture adapter 23 attached to the ultrasonic probe 21 (applicable puncture needle type, puncture angle, etc.), the standard of the puncture needle 22 to be inserted (needle diameter, needle length, etc.), etc. List data, and the structure of the display image of the monitor 32 indicated by the function key of the operation panel 31a (multi-display such as a 3D image, a two-dimensional tomographic image, a Doppler color tomographic image, other modality images such as a CT image and an MRI image) Control system data, etc.).

  Based on the three-dimensional data in the slice direction by the position sensor A26, the image construction device 18 reconstructs a plurality of ultrasonic tomographic images captured by the ultrasonic probe 21 within the first spatial coordinates and performs stereoscopic viewing. Build an ultrasound image. Further, based on the position data from the position sensor B27 and the standard data of the target puncture needle in the database 16, the CPU 15 calculates and calculates the shape and position of the puncture needle 22 and puts this into the first spatial coordinates. It is also constructed as a display image. It should be noted that the needle tip portion of the puncture needle display image is displayed with a higher brightness or a slightly thicker needle diameter than the needle body portion in order to facilitate confirmation on the image.

  Further, when the puncture adapter 23 is attached to the ultrasonic probe 21 and the puncture needle 22 is inserted into the puncture needle guide to perform puncture, generally, in the tomographic image field (slice) of the ultrasonic probe 21. Since the puncture needle guide is provided so that the puncture needle 22 is introduced into the puncture needle 22, an echo image of the puncture needle 22 can be observed in an ultrasonic tomographic image on one screen. Therefore, in the puncture using the puncture adapter, the position data from each of the position sensors 26 and 27 is replaced with the two-dimensional space (tomographic image) in the scanning direction of the ultrasonic probe 21 of the first spatial coordinates. The construction device 18 constructs a so-called tomographic image of one screen, and writes the calculated puncture needle display image including the emphasis on the needle tip portion in the tomographic image. The monitor 32 includes an echo image of the puncture needle 22 although the reflection intensity is low in the original ultrasonic tomogram obtained from the ultrasonic probe 21, and a puncture needle display image is displayed together with the actual image of the puncture needle 22. . The puncture needle display image of the present invention is written by the detection data of the position sensor B27, and the insertion setting direction unique to the preset standard (insertion angle) of the adapter during use of the conventional puncture adapter. It is different from what displays a line.

  The image constructing device 18 is a 3D ultrasonic image including a reconstructed puncture needle display image according to an instruction of the rotation amount and movement amount of the entire first spatial coordinate system set by the input device 31a such as a trackball of the input means 31. The process which changes the bird's-eye view position of is performed.

  The image composing device 18 stores the position coordinate data of the needle tip of the puncture needle 22 at the time position according to the instruction of the function “needle tip marking” on the operation panel 31b, and the image data of the 3D ultrasonic image and the ultrasonic tomographic image. In addition, data indicating a “needle tip mark” having a predetermined shape is written in the stored needle tip position coordinates, and the “needle tip mark” is displayed on the monitor 32 together with the ultrasonic image. The storage of the position coordinate data is maintained even after the puncture needle 22 is removed, and is discarded by an instruction of “needle tip data deletion”.

  After the “needle tip marking” described above, the image construction device 18 receives the second needle coordinate position data stored as a reference origin in accordance with an instruction of the function “needle tip mark relative display” on the operation panel 31b. Set the coordinate space of. Based on the three-dimensional data in the slice direction by the position sensor A26 in the first coordinate space detected by the position sensor receiving unit 25, the ultrasonic tomographic image captured by the ultrasonic probe 21 is converted into the position coordinate data of the needle tip. Is converted into a relative position with respect to, and reconstructed in the second spatial coordinates to construct an ultrasonic tomographic image. Further, based on the position data obtained by the position sensor B27 and the standard data of the target puncture needle in the database 16, the CPU 15 calculates and converts the shape / position of the puncture needle 22 into a relative position with respect to the position coordinate data of the needle tip. Is constructed as a puncture needle display image in the second spatial coordinates. The enhancement of the needle tip portion of the puncture needle display image is the same as described above.

  Further, in response to an instruction of the function “set origin” on the operation panel 31b, the trackball of the input device 31b is operated instead of the stored needle tip position coordinate data, and the position in the displayed image is set as a reference. Designate as the origin position and set the second coordinate space. By specifying the reference origin position, the display positions of the ultrasonic image and the puncture needle image can be freely changed.

  The image composing apparatus 18 detects the position data by the position sensor B27 in the first coordinate space detected by the position sensor receiving unit 25 from time to time and the object of the database 16 according to the instruction of the function “needle tip relative display” on the operation panel 31b. Based on the standard data of the puncture needle, the CPU 15 calculates and calculates the shape / position of the puncture needle 22 and sets a third coordinate space with the position coordinate data of the needle tip as the reference origin. Furthermore, based on the three-dimensional data in the slice direction by the position sensor A26 detected by the position sensor receiving unit 25, the ultrasonic tomographic image captured by the ultrasonic probe 21 is converted into the position coordinates of the needle tip every moment. An ultrasonic tomogram is constructed by converting the calculation into a relative position with respect to the data and reconstructing it in the third spatial coordinates. Needless to say, the shape and position of the puncture needle 22 whose needle point is the reference origin is also constructed as a puncture needle display image in the third spatial coordinates, and this is the data of the fixed puncture needle display image. The puncture needle installation image and the ultrasonic tomographic image constructed at the third spatial coordinates are displayed on the monitor 32.

  Next, details of the embodiment of the present invention will be described using schematic diagrams of examples of display screens by the operation of the ultrasonic probe 21, the insertion of the puncture needle 22, and the monitor 32.

  FIG. 2 shows a schematic diagram of the first embodiment of the ultrasonic diagnostic apparatus of the present invention. Here, the target region 51 of the patient 50 is the liver, and an example of using a puncture needle having a radio frequency electrode at the tip when performing radiofrequency ablation treatment on the liver cancer of the treatment target 52 will be described.

  FIG. 3 shows an example of an ultrasonic tomographic image of the puncture needle operation status displayed on the monitor 32 in the present embodiment.

  As shown in FIG. 2, the patient 50 is laid down in a standard treatment posture when treating with a puncture needle, and the ultrasonic probe 21 including the position sensor A26 is placed on the body surface directly above the treatment target 52 (liver cancer). Adhere closely. In the first embodiment, since the entire puncture needle 22 to be inserted is captured by an ultrasonic image, the puncture adapter 23 for introducing the puncture needle 22 into the tomographic image field (slice) 53 is used as the ultrasonic probe 21. Attach to.

  The puncture needle 22 guided by the puncture adapter 23 and inserted into the treatment target has a position sensor B27 at the hand thereof, and has a lead wire 41 connected to the radio wave electrode at the tip for radiofrequency ablation treatment. is doing.

  While operating the ultrasonic probe 21 and observing the tomographic image displayed on the monitor 32, the ultrasonic tomographic image of the treatment target 52 can be best depicted and the superposition can be secured at the position where the insertion path of the puncture needle 22 can be secured. The sonic probe 21 is held.

  In this embodiment, when the display form of the monitor 32 is set to two-dimensional ultrasonic tomographic image display, the puncture needle 22 is inserted into the living body using the puncture guide hole of the puncture adapter 23 attached to the held ultrasonic probe 21 described above. Immediately after the insertion, the (two-dimensional) ultrasonic tomographic image shown in FIG. 3A is displayed, and when the tip of the puncture needle 22 reaches the tumor, the ultrasonography shown in FIG. A sound image can be observed.

  In FIG. 6A immediately after the insertion, an ultrasonic tomographic image 61a is drawn by the ultrasonic probe 21 provided with the position sensor A26, and a tumor image 65 inside the target organ image 64 is captured. The needle image 63a of the puncture needle 22 immediately after insertion may be displayed as a weak reflection signal.

  On the other hand, the puncture needle 22 including the position sensor B27 is based on the data of the puncture needle 22 stored in the database 16 when the data received by the position sensor receiving unit 25 is input to the CPU 15 of the ultrasonic diagnostic apparatus main body unit 10. In addition, the position, insertion direction, needle tip position and the like are calculated. This calculation result is written in the first spatial coordinates together with the drawn ultrasonic tomographic image 61a, and the two-dimensional slice position of the ultrasonic probe 21 is displayed as a tomographic image, thereby calculating the calculation shown in FIG. The puncture needle display image 62a is overwritten, and the needle tip mark image 62t and the puncture needle insertion planned image 69a in which the puncture needle display image is extended are also drawn on the needle tip portion.

  The needle image 63a displayed with a weak reflected signal may not be displayed in the ultrasonic tomographic image 61a depending on the signal condition, but the calculated puncture needle display image 62a and the needle tip mark image 62t are operated by the sensor. If it is normal, the image is displayed regardless of the method of drawing the ultrasonic tomographic image.

  Further, the insertion of the puncture needle 22 is advanced, and the ultrasonic tomographic image 61 displayed on the monitor 32 is continuously observed, and the puncture needle display image 62b is extended as shown in FIG. When 62t reaches near the center of the tumor image 65 inside the organ image 64, insertion of the puncture needle 22 is stopped. If the needle image 63c, the puncture needle display image 62c, and the puncture needle insertion planned image 69c that are displayed in an unstable state are displayed at positions that are remarkably separated from each other, as shown in FIG. This is a case where the needle 22 is a resistance due to the boundary of the tissue or traveling, and the puncture needle is distorted and is not directed in the direction in which the puncture is assumed.

  As described above, the puncture needle tip can be positioned on the treatment target, and next, the portion is treated. For example, in radiofrequency ablation treatment, an ablation treatment device (not shown) is connected to the radio wave electrode of the puncture needle for ablation via the lead wire 41, and the ablation treatment is performed by operating the output of this ablation treatment device. Corresponding to the progress of the ablation treatment, as shown in FIG. 3 (d), an ablation is formed around the distal end 62t of the puncture needle display image 62c inside the organ image 64 displayed in the ultrasonic tomographic image 61c. It is displayed that a whitish high-echo area 66 caused by partial tissue modification and foaming is expanded. By observing the high echo area 66 and taking into account the setting position of the puncture needle 22, the range of the treatment plan, and the patient's situation, the progress of treatment on the day can be managed. The needle image 63d drawn by the ultrasonic reflection signal cannot be observed due to the high echo area 66, but the puncture needle display image 62d and the needle tip mark image 62t of the present embodiment are clearly shown. Since it is displayed, there is an effect that treatment can be easily managed.

  Next, a modified example of the method for displaying the puncture needle display image 62a and the needle tip mark image 62t will be described.

  As shown in FIG. 2, the position sensor B27 of the puncture needle 22 is disposed at a portion that is close to the hand, so that the true needle tip may be displaced from the predicted position due to distortion or deflection during insertion. This shift may be not only in the tomographic screen but also in a direction deviating from the slice plane. As shown in FIG. 3 (e), in consideration of such a deviation, the needle tip position is displayed with the region 62T set to the predicted magnitude of the deviation as the needle tip mark image of the puncture needle. Further, in FIG. 3 (f), puncture prediction path images 62F and 62f opened in the direction of the predicted deviation are displayed in consideration of the deviation from the calculated true puncture needle position. Then, the range where the puncture needle 22 is inserted is displayed. That is, the display size of the needle tip mark image 62t may be determined by the predicted shift amount in the insertion direction of the puncture needle, and may be the region 62T.

  According to this embodiment, the position of the shape of the inserted puncture needle is calculated based on the position data obtained by the position sensor including the direction data provided for each of the ultrasonic probe and the puncture needle. Since this calculation calculation result is overwritten as an puncture needle display image on an ultrasonic tomographic image by an ultrasonic probe, only weak reflected signals can be obtained, and ultrasonic waves of the puncture needle that are difficult to display stably in the ultrasonic tomographic image It is displayed more clearly than the real image. Therefore, the position where the puncture needle is inserted can be clearly recognized, and the insertion operation of the puncture needle can be performed safely and easily.

  In the present embodiment, when the display is limited to the ultrasonic tomographic image only for two-dimensional display, the calculation speed is limited to the calculation of the two-dimensional data in the ultrasonic tomographic (slice) screen. Accelerating the movement is one technique for clearly displaying the puncture needle position, which is an object of the present invention.

(Second Embodiment)
FIG. 4 is a schematic diagram showing another embodiment relating to the search and display of the treatment target site in the ultrasonic diagnostic apparatus of the present invention.

  In the present embodiment, 3D ultrasonic image synthesis by the image constructing device 18 of the ultrasonic diagnostic apparatus main body 10 is used for observing the treatment target before insertion, referring to the probe position by the position sensor A26, or making the probe movement constant. In the first coordinate space based on the position of the position sensor receiving unit 25 and the like, the stereoscopic display 67a to 67n of the target part is displayed on the monitor 32 as shown in FIG. Temporarily stored in the recording device 17. Next, in the search operation of the holding position of the ultrasonic probe 21 into which the puncture needle 22 is inserted, an ultrasonic tomographic image (slice) 61d is superimposed and displayed in the first coordinate space based on the probe position by the position sensor A26. . The stereoscopic display is performed by acquiring 3D image data by using a technique of a conventional so-called 3D ultrasonic diagnostic apparatus and rewriting the first spatial coordinates with reference to a predetermined common reference. Is obtained. The display mode of the ultrasonic tomographic image may be any of B mode, color Doppler mode, pulse Doppler mode, continuous wave Doppler mode, contrast mode, elastic imaging, etc., which are generally applied in an ultrasonic diagnostic apparatus. The display mode corresponding to the properties and characteristics of the is selected.

  When setting an ultrasonic tomographic image 61d screen for puncturing observation of the puncture needle 22 in a direction different from the slice direction of the stereoscopic display ultrasonic tomographic images 67a to 67n, different cross-sectional images 64d of the treatment target images 68a to 68n. Can be observed. In particular, after the start of cauterization treatment, the extent of the whitish high-echo area 66d in the cautery portion is checked against the original treatment object images 68a to 68n to confirm the treatment range, and cautery treatment techniques such as cautery output, cauterization time, etc. Control.

  In the present embodiment, since the treatment target is captured in stereoscopic view, the insertion position of the puncture needle can be set to the detailed position of the treatment target and inserted. In addition, the range covered by the treatment can be grasped three-dimensionally, and the response can be easily performed in order to enhance the efficiency and effect of treatment.

(Third embodiment)
A third embodiment of the ultrasonic diagnostic apparatus of the present invention will be described with reference to FIG. 5 which is a schematic diagram showing a state of insertion of a puncture needle in this embodiment and FIG. 6 which shows an example of a display image thereof.

  In the present embodiment, first, the puncture needle 22 is inserted through the puncture adapter 23 attached to the ultrasonic probe as in the method of the first or second embodiment shown in FIGS. 2 and 3. Further, as shown in FIG. 3, the tip of the puncture needle 22 reaches the tumor to be treated, and the needle tip mark image 62t is inserted until it reaches near the center of the tumor image 65 inside the organ image 64. .

  When the needle tip mark image 62t comes close to the center of the tumor image 65, the function “needle tip marking” of the operation panel 31b is set, and the needle tip position in the first coordinate space is set as the center position data of the target tumor part. And is recorded in the image recording device 18 together with the ultrasonic tomographic image screen data. When recording an ultrasonic tomographic moving image, the functions “cine recording” and “needle marking” on the operation panel 31b are set, and the moving image data and center position data of the ultrasonic image are recorded in the cine memory 19. To do.

  Here, the function “redisplay treatment target” or “redisplay cine” and “needle tip mark relative display” on the operation panel 31b are instructed. By this instruction, the ultrasonic tomographic image or tomographic cine with the target tumor position set is converted into the second coordinate space with the previous needle tip position as the reference origin, and the target tumor image is centered. The tomographic image to be displayed is displayed on the monitor 32 as a tomographic image 72 shown in the schematic diagram of the display example of FIG.

  Next, as shown in FIG. 5, the ultrasonic probe 21 is singly applied to the patient's body surface, the target organ or tumor is captured in the ultrasonic tomographic field (slice), and the target site is viewed from various different angles. Observe. That is, as shown in FIG. 6A, after observing the tumor 72a of the tomographic image 72 drawn with the puncture adapter, the puncture adapter is removed from the probe (the connection between the puncture needle 22 and the ultrasonic probe 21). The tumor 71a of the tomographic image 71 from different directions is observed. The observation of the tomographic image 71 is displayed in the same coordinate space by the position sensor A26 and can be observed with a three-dimensional feeling. Furthermore, for example, the positional relationship between the blood vessel 71b around the tumor and the tumor 71a can be confirmed from this tomographic image.

  As shown in FIG. 6A, the ultrasonic tomographic image data obtained by the ultrasonic probe 21 includes an ultrasonic tomographic image 72 recorded in the image recording device 18 with “needle tip marking” set first. Further, an ultrasonic tomographic image 71 (not shown) stored in the cine memory 19 and an ultrasonic tomographic image 71 overwritten in real time in the second coordinate space based on the position data obtained by the position sensor A 26 are respectively displayed on the monitor 32. Is displayed. The tumor can be observed from various directions in real time as the ultrasonic tomographic image 71 by changing the position of the ultrasonic probe 21. If the needle tip position is not appropriate, adjust the needle insertion position. During the adjustment, the needle tip mark 73 is fixed, and the movement of the needle tip can be confirmed by the live image of the ultrasonic tomographic image 71. Here, by performing an instruction of “needle tip mark relative display”, the needle tip mark 73 and the puncture needle display image 74 are updated to the latest positions after adjustment and are displayed again.

(Fourth embodiment)
The fourth embodiment will be described with reference to FIGS. 5 and 6B.

  In this embodiment, first, without using a puncture adapter, as shown in FIG. 5, the ultrasonic probe 21 is applied alone to the patient's body surface, and the tumor of the target organ, its surrounding organs, and the vascular system are scanned. Observe and confirm the insertion position and puncture route. A tumor is captured in an ultrasonic tomographic field (slice), and a position where a clear ultrasonic tomographic image of a target region is obtained is set as a treatment observation position.

  Next, the ultrasonic probe 21 is held at the treatment observation position, and the puncture needle 22 including the position sensor B27 is held in the insertion direction so that the needle tip is near the body surface of the patient 50. FIG. 6B is a schematic diagram of a display example in which the ultrasonic tomographic image 71 at the treatment observation position is displayed on the monitor 32 in a three-dimensional coordinate space. A puncture needle display image 75 and a needle tip mark image 76 corresponding to the puncture needle 22 held in the insertion direction are displayed. Further, the insertion of the puncture needle from the needle tip to the tip is virtually extended, and the puncture needle insertion planned image 77 is displayed in a different manner up to the tomographic image 71 at the treatment observation position. An intersection 77a between the tomographic image 71 and the puncture needle insertion planned image 77 is also displayed.

  When the puncture needle 22 is moved, on the monitor 32, the puncture needle display image 75, the needle tip mark image 76, and the puncture needle insertion planned image 77 move in conjunction with each other, and these positions are updated and displayed.

  As a display method of the monitor 32, if the display is performed based on the position of the needle tip, the display of the needle image is not moved, but a display mode in which the tomographic image 71 is relatively moved can be performed. The puncture needle 22 is inserted while confirming the position of the puncture needle 22 while observing the tomographic image 71, the puncture needle display image 75, the needle tip mark image 76, and the puncture needle insertion scheduled image 77.

  When the target insertion position is reached, the radio frequency electrode of the puncture needle 22 is connected to the ablation treatment device, and the ablation treatment is performed. With the start of treatment, it can be observed that a high-echo region is generated near the tip of the puncture needle of the ultrasonic tomographic image 71 due to tissue degeneration and foaming. Observation and confirmation of the progress of this treatment are performed by variously operating the position and direction of the ultrasonic probe 21 and displaying a desired ultrasonic tomographic image 71 on the monitor 32. In particular, the image behind the high echo area is called an echo shadow part due to the characteristics of the ultrasonic signal and is difficult to observe from that direction, and is observed by the ultrasonic probe 21 whose position is changed in a different direction. There is a need.

  According to the present embodiment, as shown in FIG. 6C, the tomographic image and the position of the puncture needle in a three-dimensional coordinate space are obtained by the ultrasonic probe 21 having the position sensor A26 and the puncture needle 22 having the position sensor B27. Regardless of the insertion direction of the puncture needle, the treatment targets 78a and 79a can be observed during the operation from various positions and directions, and the position / direction 74 of the puncture needle can also be recognized.

  When the prescribed energy injection is completed, the ablation treatment is terminated. After that, various positions and directions of the ultrasonic probe 21 are operated, and the ablation images 78c and 79c after the ultrasonic tomographic images 78 and 79 shown in FIG. And observe the state of shochu. In addition, the influence of treatment can be diagnosed by observing the surrounding blood vessel image 78b.

  Next, a display example in the case of cauterization performed after the second time according to the fourth embodiment will be described with reference to FIGS. 6 (e) and 6 (f). FIG. 6 (e) is an example in which the tumor image 80 a of the target site is observed with the ultrasonic tomographic image 80 in the second and subsequent puncture ablation treatments with the same display as in FIG. 6 (b).

  In the ultrasonic tomographic image 80, a tumor image 80a and the first ablation area 80c, for example, are observed. By this observation, an ablation of the upper area of the tumor 80a in the tomographic image 80 (the acute angle portion of the fan-shaped image is upper at the probe position). Is determined to be insufficient, in order to perform additional cauterization of the region indicated by the arrow A, a second cauterization is set in which this position is set as the needle tip position.

  In this additional cauterization, the ultrasonic probe 21 is operated to hold the puncture needle 22 in a state where the ultrasonic tomographic image 80 including the tumor image 80a and the previous cauterized image 80c is displayed. Based on the data of the position sensor B27, a puncture needle display image 75 and a puncture needle insertion planned image 77 are displayed as shown in FIG. Next, the position and direction of the puncture needle 22 are adjusted so that the puncture needle insertion planned image 77, the needle tip mark image 76, and the puncture needle display image 75 face the arrow A planned for the second cauterization, Determine the puncture position and orientation. Next, as shown in FIG. 6 (f) as in FIG. 6 (a), the probe 21 is moved in a state where the ultrasonic tomographic image 80 is recorded and displayed, and the ultrasonic tomographic surface 80e is monitored 32. It is displayed together with. While observing the ultrasonic tomographic image 80 before recording and displaying and the ultrasonic tomographic image 80e displayed in real time, there is no vascular system 80f or the like in the puncture needle insertion path including the puncture needle insertion planned image 77. Confirming this, the puncture needle 22 is inserted so that the needle tip mark image 76 of the puncture needle 22 reaches the vicinity of the planned arrow 78. After insertion, a cautery treatment device is connected and treatment is performed. After the treatment, as described above, the ablation-treated range and the like are again observed in the same manner as in FIG.

(Fifth embodiment)
7, 8, 9, and 10 are schematic views showing embodiments of monitor display by the ultrasonic diagnostic apparatus of the present invention. In this embodiment, a past ultrasonic tomographic image obtained before or in the previous ablation treatment and a real-time ultrasonic tomographic image showing the inserted puncture needle during the ablation treatment are displayed in various display modes 2. The monitor is displayed simultaneously on the screen.

  In the first display example shown in FIG. 7, an ultrasonic tomographic image 81 previously collected and recorded, for example, on the left side of the monitor 32 is displayed including a tumor image 82 confirmed as a treatment target. On the right side, a real-time ultrasonic tomographic image 83 observed with the ultrasonic probe 21 is displayed including a tumor image 84 for treatment with the puncture needle 22.

  Next, when the puncture needle 22 provided with the position sensor B27 is held in the insertion direction around the body surface immediately above the target organ, signals from the position sensor B27 and the position sensor A26 provided in the ultrasonic probe 21 are detected. Is received by the position sensor receiving unit 25 and the respective position data is input to the CPU 15 of the ultrasonic diagnostic apparatus body 10. The CPU 15 computes and calculates spatial coordinate data indicating the relationship between the slice position of the ultrasonic tomographic image that is immediately observed with the ultrasonic probe 21 and the insertion path predicted position or insertion position of the puncture needle 22.

  Based on the calculated data, the image construction device 18 synthesizes the insertion path predicted position image 87 or the puncture needle display image 86 with the ultrasonic tomographic image 83 displayed in real time, and inputs it to the monitor 32. An ultrasonic tomographic image 83 including a puncture needle display image 86 is displayed on the right screen of the monitor 32. Note that an ultrasonic tomographic image 83 shown on the right side of FIG. 7 shows a display example when the puncture needle 22 is inserted in the same direction within the width of the scan slice of the ultrasonic probe 21. In addition, when the puncture needle 22 penetrates at an angle not parallel to the scan slice, a position mark for identifying the position where the penetration is expected or the position to penetrate is shown in the lower right of the ultrasonic tomographic image 83 in FIG. Are overwritten and displayed on the monitor 32 as shown as an example 88 of the predicted position and an example 89 of the penetrating position.

  When the radiofrequency electrode of the inserted puncture needle 22 is connected to the ablation treatment device and the ablation treatment is performed, the region 85 where the ablation treatment has been performed is displayed on the monitor 32, and the progress of the treatment can be grasped.

  FIG. 8 shows a second display example of the above-described embodiment. For example, the ultrasonic tomographic image 91 previously collected and recorded on the left side of the monitor 32 is displayed including the tumor image 92 confirmed as the treatment target, and on the right side, the real-time image observed by the ultrasonic probe 21 is displayed. An ultrasonic tomographic image 93 is displayed including a tumor image 94 and an ablation area image 95 for treatment with the puncture needle 22. Here, for example, two points 96a and 96b in the previous ultrasonic tomographic image 91 displayed on the left side of the monitor 32 are designated by a trackball or the like which is the input device 31b of the ultrasonic diagnostic apparatus main body 10, and during that time, An instruction to measure the distance or a figure such as a circle 97a or an ellipse is drawn, and an instruction to measure the diameter or area is given. By this instruction, those coordinate values are read and overwritten on the data of the real-time ultrasonic tomographic image 93 by the position and size linked by the image construction device 18, and the copy 96c, 96d or 97b is copied to the ultrasonic tomographic image. 93. This measurement and graphic copy are similarly performed from the real-time ultrasonic tomographic image 93 to the previous ultrasonic tomographic image 91.

  FIG. 9 shows a third display example of the above-described embodiment. For example, on the left side of the monitor 32, an ultrasonic tomographic image 101 previously collected and recorded including the tumor image 102 confirmed as the treatment target is displayed, and on the right side thereof, the tumor image 104 and the ablation area to be treated with the puncture needle 22 A real-time ultrasonic tomographic image 103 observed with the ultrasonic probe 21 including the image 105 and the like is displayed, and these tomographic images are each displayed three-dimensionally in first spatial coordinates.

  In the present display example of the monitor 32, the real-time ultrasonic tomographic image 103 displayed on the right side is different from the first and second display examples described above in the position and direction of the acquisition of the ultrasonic tomographic image (slice). Regardless, the inserted puncture needle display image 106 is displayed in its entirety. The real-time ultrasonic tomographic image 103 and the puncture needle display image 106 including the three-dimensionally displayed tumor image 104 and the ablation area image 105 are observed, and the positional relationship between the puncture needle 22 and the target tumor 52 and the state of ablation treatment. Can be grasped in a three-dimensional sense.

  Further, the function “needle tip relative display” is instructed on the operation panel 31b. This instruction is based on the ultrasonic tomographic image data captured by the ultrasonic probe 21 in the first coordinate space that is detected and developed by the position sensor receiving unit 25, and the position coordinate data of the needle tip of the puncture needle 22 as the reference origin. This is reconstructed into the above-mentioned third coordinate space by calculation conversion that becomes a relative position to the position coordinate data of the needle tip. The real-time ultrasonic tomographic image reconstructed in the third coordinate space and the puncture needle display image of the inserted puncture needle 22 are displayed on the monitor 32.

  Normally, images of respiratory organs inside the living body, especially abdominal organs and puncture needles inserted into the abdominal organs, are displayed on the monitor as images that fluctuate greatly periodically. Since the ultrasonic tomographic image and the puncture needle display image converted onto the third spatial coordinates described above use the needle tip inserted into the target organ as the reference origin, the state of relative stillness in which this fluctuation is canceled These can be displayed.

  FIG. 10 shows a fourth display example of the above-described embodiment. The ultrasonic tomographic images 80 and 80f shown in FIG. 6F shown in the fourth embodiment are independently displayed on the right side of the dual screen. That is, on the left side of the monitor 32 shown in FIG. 10, for example, the ultrasonic tomographic image 111 including the tumor image 112 to be treated and the ablation treatment region image 113 collected and recorded in the previous ablation treatment is three-dimensionally displayed. Includes real-time ultrasound including a tumor image 116 and a puncture needle display image 118 that are observed by the ultrasound probe 21 to which the puncture adapter is attached and are treated with the puncture needle 22 set in the puncture adapter. The tomographic image 115 is displayed two-dimensionally.

  In the display screen of the past situation on the left side of the monitor 32 shown in the fourth display example, the position data of the puncture needle is also recorded together with the tomographic image data at the end of the previous ablation treatment, and the puncture needle display image 119 is indicated by a dotted line. Alternatively, it is displayed together with the ultrasonic tomographic image 111 in an identified form such as a one-dot chain line.

  Furthermore, the ultrasonic tomogram is identified by the mark 120 where the puncture needle 22 inserted through the puncture adapter 23 in this round of ablation treatment has reached the position on the ultrasonic tomographic image plane of the previous ablation treatment. 111. With the arrival position mark 120, it is possible to accurately insert and guide the puncture needle 22 based on a treatment plan such as treating the same place as before or treating a different place.

  In the above, an ablation treatment using a radiofrequency puncture needle has been described as an example. However, in the ethanol injection treatment, if a hollow puncture needle for ethanol injection is used as the puncture needle, the puncture / cauterization treatment using the puncture needle of the present invention is performed. The situation can be observed and grasped in the same way.

  Moreover, as an observation image of the previous treatment site displayed on one of the two screens of the monitor 32, in addition to a 3D ultrasonic image, an ultrasonic cine (moving image) image, or a CT image of the patient obtained through a hospital network References to MRI images, or these three-dimensional image data sets, can be similarly performed. In the case of CT image or MRI image data, an origin coordinate input means for observing a tomographic image and inputting the position of the reference origin of the second spatial coordinates by inspection is shown in FIG. 9 or FIG. When live images of ultrasonic tomographic images as shown in Fig. 6 are displayed side by side, alignment becomes easy.

(Sixth embodiment)
A sixth embodiment of the present invention will be described with reference to a schematic diagram shown in FIG.

  The three-dimensional ultrasonic image of the ultrasonic diagnostic apparatus of the present invention is not limited to one in which three-dimensional scanning is performed manually with an ultrasonic probe and three-dimensional tomographic image data is reconstructed based on the two-dimensional tomographic image. 3 type ultrasonic tomogram by mechanical 3D ultrasonic probe that mechanically translates or rotationally moves ultrasonic probe and 3D scanning, or electronic 3 that electronically scans 2D array type probe A three-dimensional ultrasonic tomogram obtained by a three-dimensional ultrasonic probe can be similarly applied as a three-dimensional tomographic image of the ultrasonic diagnostic apparatus of the present invention.

  FIG. 11 is a diagram of a situation in which the three-dimensional scanning of the present embodiment is performed in the insertion of the puncture needle without using the puncture adapter shown in FIG. 5 and a display example thereof. The ultrasonic probe of the present embodiment shown in FIG. 11A is a mechanical three-dimensional ultrasonic probe or an electronic three-dimensional ultrasonic probe, and the position of the ultrasonic probe and the central axis of the three-dimensional scanning are included in this. A position sensor A26 for detecting the direction is provided. The three-dimensional ultrasonic probe 21 mechanically or electronically performs three-dimensional scanning, and acquires three-dimensional tomographic image data of the scanning volume 53v.

  When the puncture needle 22 including the position sensor 27 is inserted toward the tumor 52 in the scan volume 53v, the scan managed by the system is performed by the position sensor receiver 25, the CPU 15, and the image calibration device 18 shown in FIG. The relative position information of the cross-sectional image in the inside, the position / orientation information of the probe by the position sensor 26, the relative position information of the cross-sectional image being scanned by the position sensor 26, and the position / shape of the puncture needle 22 by the position sensor 27 Information is detected, calculated and calculated. These are converted into position / orientation information with respect to a predetermined reference origin, and the relative positional relationship between the needle and the cross section can be displayed as shown in FIG.

  FIG. 11 (b) displays the respective tomographic plane images obtained by the three-dimensional ultrasonic probe in the same manner as FIG. 6 (e), and these images are successively displayed by the tertiary scanning system of the three-dimensional ultrasonic probe. It is the schematic diagram which displayed on the monitor 32 the expansion | deployment from which a surface changes. That is, the three-dimensional ultrasonic image data is tomographic image data of a plurality of ultrasonic tomographic images 80 shown in FIG. 6 (f), and the three-dimensional ultrasonic data is reconstructed as shown in FIG. 11 (b). A later three-dimensional volume display image 80v is displayed, and a tumor image 80a is displayed thereon. Furthermore, a puncture needle display image 75, a needle tip mark 76, or a puncture needle insertion planned image 77 that is an extension thereof is displayed on the ultrasonic image.

  The three-dimensional ultrasonic data of this embodiment can be similarly applied to any ultrasonic tomographic image data described in the first to fifth embodiments.

According to this embodiment, an organ, a tumor to be treated, a cauterization treatment, or a punctured site can be observed as a real-time 3D image. Therefore, determination of a treatment site, insertion and positioning of a puncture needle,
It is very easy to check the situation after treatment.

1 is a block diagram showing a first embodiment of an ultrasonic diagnostic apparatus of the present invention. The schematic diagram of the 1st Embodiment of this invention. The example of the ultrasonic tomogram of the puncture needle operation condition displayed in 1st Embodiment. The schematic diagram which shows the search and display of the treatment object site | part by 2nd Embodiment. The schematic diagram which shows the mode of insertion of the puncture needle in 3rd and 4th embodiment. The schematic diagram which shows the search and display of the treatment object site | part by 3rd and 4th embodiment. The schematic diagram which shows the 1st display example of the monitor display by 5th Embodiment. The schematic diagram which shows the 2nd display example of the monitor display by 5th Embodiment. The schematic diagram which shows the 3rd example of a monitor display by 5th Embodiment. The schematic diagram which shows the 4th example of a monitor display by 5th Embodiment. The schematic diagram which shows the search and display of the treatment object site | part by 6th Embodiment.

Explanation of symbols

10 ... ultrasonic diagnostic apparatus main body,
11 ... Ultrasonic transmitter,
12 ... Ultrasonic wave receiver,
13a: B mode processing unit 13b: Color mode processing unit,
14 ... display output unit,
15 ... CPU,
16 ... Database 17 ... Image recording device,
18: Image construction device 19: Cine memory,
20 ... Puncture / probe part,
21 ... Ultrasonic probe,
22 ... puncture needle,
23 ... Puncture adapter 25 ... Position sensor receiver,
26, 27 ... position sensor 31 ... input means,
31a ... operation panel,
31b ... input device,
32 ... Monitor,
41 ... lead wire,
50 ... Patient,
51 ... Target site (liver)
52 ... treatment site (liver cancer),
53 ... Tomographic field (slice),
53v: Scanning volume,
61a, 61b, 61c, 61d, 71, 72, 78, 79, 80, 81, 83, 91, 93, 101, 103, 111, 115 ... ultrasonic tomogram,
62a, 62b, 62c, 62d, 74, 75, 86, 106, 118, 119 ... puncture needle display image,
62t, 62T ... needle tip mark images 63a, 63b, 63c ... needle images 64 ... organ images,
65, 71a, 72a, 78a, 80a, 82, 84, 92, 94, 102, 104, 112, 116 ... tumor image,
66 ... high echo area 67a to 67n ... stereoscopic display
68a-68n ... treatment object image 69a, 69c, 69F, 69f, 77 ... puncture needle insertion scheduled image 72, 72N ... treatment observation ultrasonic tomographic image,
78c, 79c, 80c, 85, 95, 105, 113, 117 ... cauterized image,
80v ... 3D volume display image.

Claims (1)

An ultrasonic probe comprising first position and direction sensing means;
Ultrasonic image means for processing an ultrasonic signal from the ultrasonic probe and outputting ultrasonic tomographic image data or ultrasonic three-dimensional image data;
A puncture needle comprising a second position and direction detection means and inserted into a living body;
A tomographic image calculation means for reconstructing output image data of the ultrasonic image means with reference to a detection result of the first detection means at a first spatial coordinate having a predetermined position as a reference origin;
Puncture that refers to the output of the second detection means and indicates the position of the full-length needle portion of the puncture needle inserted into the living body and the extended portion beyond the needle tip in the first spatial coordinates, or any one thereof Puncture needle display calculation means for calculating needle display image data;
Each of the result data of the tomographic image calculation means and the puncture needle display calculation means in the first coordinate space is obtained with the position of the needle tip of the puncture needle calculated by the puncture needle display calculation means as a reference origin. Needle point reference conversion means for calculating and converting into two spatial coordinates;
Image configuration for superimposing and outputting the puncture needle display data in the second spatial coordinates by identifying the full length part or the extension part on the ultrasonic image data in the second spatial coordinates by the needle tip reference conversion means Means,
Monitor means for displaying the result of the image construction means ,
The ultrasonic image means includes image recording means for storing already acquired image data obtained by attaching the result data of the puncture needle display calculation means to the result data of the tomographic image calculation means, and the read out data from the image recording means The acquired image data and real-time ultrasonic image data processed by superimposing the result of the puncture needle display calculation means on the result of the tomographic image calculation means processed in real time are respectively output from the image construction means, An image is displayed on the monitor means,
Distance measurement attached to either the acquired image data read from the image storage means or the real-time ultrasonic image data processed to superimpose the result of the puncture needle display calculation means on the result of the tomographic image calculation means The two-point mark, or the area measurement circle, ellipse, or border of any shape is copied to the corresponding position of the other image data in the image construction means and displayed on the two screens of the monitor means, respectively. An ultrasonic diagnostic apparatus.

Images