WO2004028373A1 - 超音波診断装置 - Google Patents
超音波診断装置 Download PDFInfo
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- WO2004028373A1 WO2004028373A1 PCT/JP2003/011692 JP0311692W WO2004028373A1 WO 2004028373 A1 WO2004028373 A1 WO 2004028373A1 JP 0311692 W JP0311692 W JP 0311692W WO 2004028373 A1 WO2004028373 A1 WO 2004028373A1
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- Prior art keywords
- radial
- path
- tomographic image
- ultrasonic
- ultrasonic diagnostic
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B8/00—Diagnosis using ultrasonic, sonic or infrasonic waves
- A61B8/42—Details of probe positioning or probe attachment to the patient
- A61B8/4245—Details of probe positioning or probe attachment to the patient involving determining the position of the probe, e.g. with respect to an external reference frame or to the patient
- A61B8/4254—Details of probe positioning or probe attachment to the patient involving determining the position of the probe, e.g. with respect to an external reference frame or to the patient using sensors mounted on the probe
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B8/00—Diagnosis using ultrasonic, sonic or infrasonic waves
- A61B8/12—Diagnosis using ultrasonic, sonic or infrasonic waves in body cavities or body tracts, e.g. by using catheters
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B8/00—Diagnosis using ultrasonic, sonic or infrasonic waves
- A61B8/13—Tomography
- A61B8/14—Echo-tomography
- A61B8/145—Echo-tomography characterised by scanning multiple planes
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B8/00—Diagnosis using ultrasonic, sonic or infrasonic waves
- A61B8/46—Ultrasonic, sonic or infrasonic diagnostic devices with special arrangements for interfacing with the operator or the patient
- A61B8/461—Displaying means of special interest
- A61B8/463—Displaying means of special interest characterised by displaying multiple images or images and diagnostic data on one display
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B8/00—Diagnosis using ultrasonic, sonic or infrasonic waves
- A61B8/48—Diagnostic techniques
- A61B8/483—Diagnostic techniques involving the acquisition of a 3D volume of data
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
- G01S7/52—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S15/00
- G01S7/52017—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S15/00 particularly adapted to short-range imaging
- G01S7/52053—Display arrangements
- G01S7/52057—Cathode ray tube displays
- G01S7/52074—Composite displays, e.g. split-screen displays; Combination of multiple images or of images and alphanumeric tabular information
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B8/00—Diagnosis using ultrasonic, sonic or infrasonic waves
- A61B8/13—Tomography
- A61B8/14—Echo-tomography
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B8/00—Diagnosis using ultrasonic, sonic or infrasonic waves
- A61B8/52—Devices using data or image processing specially adapted for diagnosis using ultrasonic, sonic or infrasonic waves
- A61B8/5215—Devices using data or image processing specially adapted for diagnosis using ultrasonic, sonic or infrasonic waves involving processing of medical diagnostic data
- A61B8/523—Devices using data or image processing specially adapted for diagnosis using ultrasonic, sonic or infrasonic waves involving processing of medical diagnostic data for generating planar views from image data in a user selectable plane not corresponding to the acquisition plane
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S15/00—Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems
- G01S15/88—Sonar systems specially adapted for specific applications
- G01S15/89—Sonar systems specially adapted for specific applications for mapping or imaging
- G01S15/8906—Short-range imaging systems; Acoustic microscope systems using pulse-echo techniques
- G01S15/8997—Short-range imaging systems; Acoustic microscope systems using pulse-echo techniques using synthetic aperture techniques
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
- G01S7/52—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S15/00
- G01S7/52017—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S15/00 particularly adapted to short-range imaging
- G01S7/52053—Display arrangements
- G01S7/52057—Cathode ray tube displays
- G01S7/5206—Two-dimensional coordinated display of distance and direction; B-scan display
- G01S7/52065—Compound scan display, e.g. panoramic imaging
Definitions
- the present invention relates to an ultrasonic diagnostic apparatus that advances and retreats a radial scanning ultrasonic transducer in a body cavity of a subject, and generates a plurality of time-series radial tomographic images with the advance and retreat.
- a position detector is provided at the tip, and a general-purpose radial scanning ultrasonic probe (an optical observation window is provided along a curved or bent lumen).
- An ultrasonic diagnostic apparatus has been disclosed that moves forward and backward, and acquires multiple ultrasonic tomographic images to easily acquire an ultrasonic image of a space along a path. .
- Various methods of expressing ultrasonic image data of a space have been studied, and the apparatus disclosed in Japanese Patent Application Publication No. 11-11313 discloses ultrasonic three-dimensional images and planes with different directions. It is represented by multiple cross-sectional images cut by.
- viewpoint setting means for setting a plurality of viewpoints is provided inside an observation target included in an original image, and a tomographic image vertically cut by a curved surface passing through the plurality of viewpoints is displayed.
- the ultrasonic image data of a space is represented by a cross-sectional image cut on a certain plane as in the apparatus disclosed in Japanese Patent Application Laid-Open No. H1-11-113913
- the lumen becomes It is often expressed as a fragmented image such as 14 and the entire lumen image is not displayed on the screen in many cases. This is because the lumen of the living body does not necessarily travel in a specific plane.
- FIG. 14 shows a state where the lumen is partially running on the back side of the cross section.
- this device has the following problems.
- the devices disclosed in Japanese Patent Application Laid-Open Nos. Hei 1-13-18884 and Japanese Patent Application Laid-Open No. 2000-2443766 show a viewpoint for drawing a curved surface.
- the above first problem can be fulfilled after the examination.
- the first task could not be achieved in a real evening.
- this device has a drawback that it is not possible to fulfill the above-mentioned second problem that it is difficult to know which part of the lumen is being scanned during the examination (especially during scanning).
- the present invention has been made in view of the above circumstances, and how a radial scanning ultrasonic probe advances and retreats in a body cavity, how the lesion spreads along the lumen even during the examination. It is an object of the present invention to provide an ultrasonic diagnostic apparatus that is easy to understand and that can easily recognize which part of a lumen is being scanned during an examination. Disclosure of the invention
- the ultrasonic diagnostic apparatus is an ultrasonic diagnostic apparatus that moves a radial scanning ultrasonic transducer in and out of a body cavity of a subject and generates a plurality of time-series radial tomographic images as the ultrasonic scan moves.
- Position information detecting means for detecting position information of the radial scanning ultrasonic transducer at the time of acquiring an image; and the position information and time series obtained by the position information detecting means.
- Path tomographic image generation means for generating a path tomographic image along a path of advance and retreat of the radial scanning ultrasonic transducer based on the plurality of radial tomographic images.
- FIG. 1 is a configuration diagram showing a configuration of an ultrasonic diagnostic apparatus
- FIG. 2 shows a configuration of a distal end of the ultrasonic endoscope of FIG. Fig. 3
- Fig. 3 is a flowchart illustrating the flow of processing of the ultrasonic diagnostic apparatus of Fig. 1
- Fig. 4 is a first diagram illustrating the operation of the ultrasonic diagnostic apparatus of Fig. 1
- Fig. 5 is an ultrasonic diagnostic of Fig. 1.
- FIG. 6 is a third diagram illustrating the operation of the ultrasonic diagnostic device of FIG. 1
- FIG. 7 is a fourth diagram illustrating the operation of the ultrasonic diagnostic device of FIG. 1.
- FIG. 8 is a fifth diagram illustrating the operation of the ultrasonic diagnostic apparatus of FIG. 1
- FIG. 9 is a sixth diagram illustrating the operation of the ultrasonic diagnostic apparatus of FIG. 1
- FIG. 10 is the ultrasonic wave of FIG.
- FIG. 14 is a seventh diagram illustrating the operation of the diagnostic device.
- FIGS. 11 and 12 relate to the second embodiment of the present invention.
- FIG. 11 is a configuration diagram showing a configuration of an ultrasonic diagnostic apparatus.
- FIG. 12 is a tip of the ultrasonic endoscope of FIG.
- FIG. 3 is a diagram showing the configuration of FIG.
- FIG. 13 is a configuration diagram showing a configuration of the force capsule ultrasonic endoscope according to the third embodiment of the present invention.
- an ultrasonic diagnostic apparatus 1 includes an ultrasonic endoscope 2, an ultrasonic observation unit 3, a position detection unit 4, a monitor 5, a keyboard 6, and a mouse 7. Are provided.
- the ultrasonic endoscope 2 includes an insertion portion 11 made of a flexible material into the body cavity of a subject, and a motor 13 for driving an ultrasonic transducer (described later) at the tip of the insertion portion.
- Drive unit 14 ing.
- an acoustically translucent distal end cap 15 made of a material that transmits ultrasonic waves is provided at the distal end of the insertion portion 11.
- An ultrasonic transducer 12 is provided inside the tip cap 15, and a so-called acoustic medium (not shown) is filled in the tip cap 15.
- the ultrasonic vibrator 12 is connected to a flexible shaft 16 also made of a flexible material.
- the flexible shaft 16 is connected to the motor 13 in the drive unit 14.
- the ultrasonic transducer 12 is connected to an image construction circuit (described later) in the ultrasonic observation unit 3 via a driving unit 14 via a signal line (not shown) in the flexible shaft 16.
- a transmission coil 17 for applying a magnetic field to the space is provided at the tip of the input unit 11 and is connected to a coil drive circuit (described later) in the position detection unit 4 via a signal line.
- the transmitting coil 17 is wound around two orthogonal directions (y and z in FIG. 2) .
- the z axis is the insertion direction of the ultrasonic endoscope 2
- the y axis is perpendicular to the z axis. This is a direction parallel to the radial scanning plane (described later).
- the ultrasonic observation unit 3 outputs an excitation signal in the form of a pulse voltage to the ultrasonic vibrator 12 and performs various kinds of reception signal processing on the echo signal from the ultrasonic vibrator 12 to obtain an ultrasonic signal.
- a display circuit 24 that performs D / A conversion processing and converts it to an analog video signal overnight, a three-dimensional data recording unit 25 composed of a hard disk or a large-capacity memory, and a position detection unit 4
- a communication circuit 27 that communicates the position and direction data to the bus 26 and an external input control circuit 29 that transmits the input from the keyboard 6 and the mouse ⁇ to the controller 28 are provided.
- the control command is sent and received to each circuit and each part of Controller 2 8 is summer to issue a control command to each circuit out through the bus 2 6.
- the position detection unit 4 includes a coil driving circuit 31 that outputs a coil excitation signal to the transmission coil 17, and a fixed position in a predetermined arrangement method, and sequentially detects a magnetic field generated by the transmission coil 17 to electrically control the transmission coil 17.
- Fig. 1 The bold broken lines in Fig. 1 indicate signals / images related to radial tomographic images (described later) and path tomographic images (described later).
- the flow of image data and the thin dashed line are the flow of position direction data.
- the ultrasonic transducer 12 receives the excitation signal in the form of a pulse voltage from the image construction circuit 21 in the ultrasonic observation unit 3 and converts it into an ultrasonic beam which is a compression wave of the medium.
- the ultrasonic beam travels through the acoustic medium and the tip cap 15 and is irradiated to the outside of the ultrasonic endoscope 2, and the reflected echo from the inside of the subject passes through the reverse path of the ultrasonic beam and passes through the ultrasonic transducer.
- the ultrasonic transducer 12 converts the reflected echo into an electric echo signal and transmits it to the image construction circuit 21 through a path opposite to that of the excitation signal.
- the flexible shaft 16 and the ultrasonic vibrator 12 are rotated by the motor 13 in the drive unit 14 to rotate the block 13 in FIG. Rotate in the direction.
- the ultrasonic beam is radiated sequentially in the plane of FIG. 2 (hereinafter referred to as a radial scanning plane) 19 perpendicular to the entrance 11 of the ultrasonic endoscope 2, thereby realizing a so-called mechanical radial scanning ( Hereinafter, it is simply referred to as radial scanning).
- the image construction circuit 21 converts the echo signal from the ultrasonic vibration 12 into envelope detection, logarithmic amplification, A / D conversion, and scan conversion (converts polar coordinate system data generated by radial scan into rectangular coordinate system image data).
- a known process such as a conversion process is performed to construct ultrasonic image data (hereinafter, radial tomographic image). This radial tomographic image is output to the image memory 22 via the bus 26 and stored.
- the coil drive circuit 31 sequentially outputs a coil excitation signal to the transmission coil 17.
- the transmission coil 17 applies a magnetic field to the space.
- the receiving coil group 32 sequentially detects the magnetic field and outputs an electric reception signal to the position calculation circuit 33.
- the position calculation circuit 33 calculates position and direction data based on the received signal, and outputs the data to the communication circuit 27 in the ultrasonic observation unit 3.
- the position / direction information includes the position and direction of the transmitting coil 17 with respect to the receiving coil group 32.
- the position and direction data includes not only the position of the transmitting coil but also the direction of insertion of the ultrasonic endoscope (z axis in Fig. 2) and a specific direction parallel to the radial tomogram (y axis in Fig. 2).
- the y-axis in Fig. 2 is the 12:00 o'clock direction of the radial tomographic image (monitor (this table When the transmitting coil 17 is attached so that it is in the upward direction when indicated, the position and orientation data will be the normal direction of the radial tomogram (z axis in Fig. 2) and the 12 o'clock direction (y axis in Fig. 2) By including '.
- the communication circuit 27 outputs the position / direction data to the bus 26.
- the position / direction data is output to the image memory 22 via the bus 26 and stored.
- the controller 28 stores the radial tomographic image and the position / direction data in synchronization and association.
- This cutting plane means that the operator usually obtains a plurality of radial tomographic images sequentially by moving the (radial scanning type) ultrasonic endoscope 2 in and out of the body cavity, and then as an image of the space. It is cut at a specific plane and observed as a cross-sectional image, which means the specific plane at that time.
- the feature of the present embodiment is that, for each of the radial tomographic images, an individual cutting plane parallel to each other is set, and an intersection line between each radial tomographic image and each cutting plane is obtained. To generate a cross-sectional image (hereinafter, a path tomographic image).
- step S1 the operator sets the direction of the cutting plane.
- Various setting methods are conceivable, but an arrow-like index representing the normal direction of the cutting plane, a plate-like index schematically representing the cutting plane, and the like are displayed on the monitor 5 in three dimensions. If the directions of these indices can be changed with the keyboard 6 and the mouse 7, it is desirable that the direction of the cutting plane be intuitively understood.
- the coordinate system based on the position and direction of the ultrasonic endoscope 2 at the moment of setting and the coordinate system based on the position and direction of the fixed receiving coil group 32 are It is preferable to display the indices three-dimensionally because the operator can more easily understand the positional relationship between the ultrasonic endoscope 2 and the receiving coil group 32 and can easily set them.
- the specific actions are as follows.
- the surgeon inputs the direction of the cutting plane from the keyboard 6 and the mouse 7.
- Information related to this direction is transmitted to the controller 28 via the external input control circuit 29, and is input to the image processing circuit 23 as a command from the controller 28.
- the image processing circuit 23 performs image processing using position and orientation data so that the indices can be displayed three-dimensionally, and displays them on the monitor 5 via the display circuit 24, thereby setting the direction of these cutting planes. make it happen.
- step S2 the operator instructs the start of radial scanning.
- the image construction circuit 21 outputs an excitation signal based on a command from the controller 28, Radial scanning starts when the motor 13 rotates.
- step S3 the operator starts insertion / extraction (hereinafter referred to as a guide) along the lumen while radially scanning the ultrasonic endoscope 2 inserted into the body cavity of the subject.
- a guide insertion / extraction
- step S4 the image processing circuit 21 substitutes 1 for a variable n prepared as a counter.
- step S5 the image construction circuit 21 constructs the n-th radial tomographic image, and the controller 28 stores the radial tomographic image and the position / direction data in the image memory 22 in synchronization with each other.
- step S6 the image processing circuit 23 obtains the n-th cutting plane. Specifically, the image processing circuit 23 reads the n-th radial tomographic image from the image memory 22 and the position direction data associated with the n-th radial tomographic image, and the transmitting coil 17 is in the vicinity of the ultrasonic transducer 12 Therefore, the position of the transmission coil 17 is regarded as the position of the rotation center of the ultrasonic transducer 12 in the n-th radial tomographic image, and the n-th cutting plane is obtained therefrom.
- Figure 5 shows the n-th cutting plane.
- the n-th cutting plane faces the direction set in step S1 and passes through the rotation center of the n-th radial tomographic image.
- This plane is defined as one plane for the n-th radial tomographic image. Therefore, if this step is repeated while changing n, one cutting plane is obtained for each of the first, second,-, ⁇ , ⁇ radial tomographic images.
- step S7 the image processing circuit 23 obtains a line segment (the nth line segment) between the nth radial tomographic image and the nth cutting plane.
- Figure 5 shows the nth intersection line segment.
- step S9 the image processing circuit 23 interpolates between the image information on the (n ⁇ 1) th intersecting line segment and the image information on the nth intersecting line segment to generate the nth fragment. Create Figure 6 shows the n-th fragment.
- interpolation methods such as a linear interpolation method between the intersections and a non-linear interpolation method along the guide route.
- step S10 the image processing circuit 23 updates the n-th fragment by overwriting the previous path tomographic image. That is, a new path tomographic image is created.
- Figure 6 shows the updated route tomogram.
- step S11 the display circuit 24 generates an image signal in which the n-th radial tomographic image and the path tomographic image are arranged.
- This image is shown in FIG.
- the left of Fig. 8 is the n-th radial section image, and the right is the path tomographic image.
- the bold lines on the nth radial tomographic image and the path tomographic image are markers (hereinafter referred to as “intersection merging force”) that represent the line segments obtained to create the path tomographic image. That is, the intersection line in FIG. 8 represents the nth intersection line segment, and when the background image is a monochrome image, it is displayed in a color different from the background such as green.
- step S12 the monitor 5 displays the n-th radial tomographic image and the path tomographic image in parallel.
- the monitor 5 displays the n-1st radial tomographic image and the path tomographic image superimposed on the n-1st fragment by this step, the screen will be updated. Become.
- step S13 when the operator instructs the end of the manual scanning via the keyboard 6 or the mouse 7, the radial scanning ends. In that case, the processing jumps to step S14.
- the operator uses a button (not shown) on the keyboard 6 or a mouse 7 to perform various menu operations.
- the image construction circuit 21 stops the output of the excitation signal based on the command from the controller 28, and the motor 13 stops the rotation to stop the radial scan. I do.
- step S14 the image processing circuit 23 adds 1 to the variable n prepared as the count. Thereafter, the image processing circuit 23 jumps the processing to step S5.
- step S5 Unless the operator instructs the end of the manual scanning in this way, the processing from step S5 to step S14 is repeated.
- step S5 By repeating the processing from step S5 to step S14, the path tomographic image sequentially extends as shown in FIG. 8 along with the manual scanning.
- a plurality of radial tomographic images are not cut out on a specific plane to generate a plane tomographic image, but a plurality of radial tomographic images are cut.
- the feature is that the tomographic image was generated.
- step S1 When the operator sets the direction of the cutting plane in step S1, the controller 28 writes the direction vector in the normal direction of the cutting plane to the three-dimensional data recording unit 25.
- step S6 when the image processing circuit 23 reads out the n-th radial tomographic image and the position / direction data associated therewith from the image memory 22, the controller 28 receives the n-th radial tomographic image.
- the radial tomographic image is associated with the position / direction data and written into the three-dimensional data recording unit 25.
- the controller 28 records three-dimensional data of the radial tomographic image and the position / direction data. From the part 25, the data is sequentially read out from the first memory to the image memory.
- the surgeon sets the cutting plane in the same manner as in step S1, and the elements perform the operations from step S4 to step S14, thereby obtaining the position direction data as shown in FIG.
- a tomographic image of the path can be obtained along the path of the guide for obtaining the path.
- the controller 28 is operated based on an arrow key (not shown) on the keyboard 6 or an operator's instruction obtained through the mouse 7 to identify the intersection line on the path tomogram.
- the position and direction of the force and the intersection marker on the radial tomogram can be changed.
- intersection marker on the path tomographic image can be selectively moved to the position of each intersection line segment. For example, it is the direction of the arrow in FIG.
- the radial tomographic images of ' ⁇ ' n-th, n-th, and eleventh + 1 '-' are sequentially updated and displayed on the left side of the monitor 5. Is done.
- the intersection marker on the n-th radial tomographic image can rotate around the rotation center of the ultrasonic transducer 12 on the radial tomographic image. For example, it is the direction of the arrow in FIG.
- the first method is to make the new cutting plane a plane perpendicular to the n-th radial tomographic image and passing through the intersection marker on the n-th radial tomographic image.
- the original cutting plane is not necessarily perpendicular to the n-th radial tomographic image, but here the intersection line marker on the radial tomographic image is rotated by operating the keyboard 6 or the mouse 7.
- the cutting plane is set perpendicular to the radial tomographic image at the moment when it is started.
- the angle between the new cutting plane and the n-th radial tomogram and the original cutting plane that is, the normal to the n-th radial tomogram and the normal to the original cutting plane
- the plane passing through the intersection line on the ⁇ -th radial tomographic image that is, the normal to the n-th radial tomogram and the normal to the original cutting plane
- the operator constructs a path tomographic image, temporarily stops the radial scan, and then performs a new radial scan without removing the ultrasonic endoscope 2 from the subject.
- the path tomographic image is not updated by a new radial scan.
- the image processing circuit 23 calculates an intersection line segment between the current radial scanning plane and the already obtained path tomographic image, generates an intersection marker based on the position of the intersection line segment, and generates the intersection marker already. It is superimposed and displayed on the obtained path tomographic image. This is shown in FIG. At this time, the currently scanned radial tomographic image is displayed on the left side of the monitor 5 screen.
- the (radial scanning type) ultrasonic endoscope 2 is advanced and retracted in the body cavity by the action of the configuration of the present embodiment. (1) How the lesion spreads along the lumen even during the examination (2) It is easy to see which part of the lumen is being scanned during the examination.
- intersection marker is provided to express the intersection between the radial tomographic image and the path tomographic image, the positional relationship between the radial tomographic image and the path tomographic image can be easily understood regardless of the Z inspection during the inspection.
- intersection marker is moved on the path tomographic image by input means such as a keyboard or a mouse, and the radial tomographic image is updated in conjunction with the marker, the path tomographic image is updated.
- input means such as a keyboard or a mouse
- the radial tomographic image is updated in conjunction with the marker
- the path tomographic image is updated.
- Can be used to search for radial tomograms i.e., and it is easy to see which part of a curved or bent lumen is scanned by a radial tomogram. Therefore, it is easy to obtain a desired radial tomographic image, and it is easy to draw and discover regions of interest such as lesions.
- the image processing circuit 23 obtains an intersection line between the current radial scan plane and the path tomographic image that has already been obtained, generates an intersection marker based on the position of the intersection, and generates an intersection marker. Since the marker is superimposed and displayed on the already obtained path tomogram, the surgeon can use the path tomogram and the intersection line marker as a guide for the current radial scan plane, and easily draw the lesion can do.
- intersection marker on the path tomogram moves in FIG. 8 to update the radial tomogram.
- the intersection marker may be fixed and the path tomogram may be scrolled.
- the path tomogram may be scrolled so that the latest intersection line segment is always displayed on the screen.
- intersection line marker of the radial tomographic image ⁇ is rotated to update the path tomographic image.
- the intersection line marker may be fixed and the radial tomographic image may be rotated.
- the manual scanning is performed by manually guiding the ultrasonic endoscope.
- the manual scanning may be performed in a direction in which the ultrasonic endoscope is inserted into a deep part of the body cavity.
- the radial tomographic image and the path tomographic image are displayed side by side on the monitor at the same time. However, they may be displayed on a separate monitor, or they may be switched and displayed while maintaining the intersection line force. Is also good.
- the transmission coil 17 is provided at the tip of the insertion section 11 of the ultrasonic endoscope 2, and the reception coil group 32 is fixed in the space.
- the transmission and reception may be reversed.
- the position and direction of the radial tomographic image are detected using a magnetic field, but this may be achieved by using acceleration or other means.
- the driving section 14 of the present embodiment does not have a module.
- an ultrasonic transducer is cut into a strip at the distal end of the insertion portion of the ultrasonic endoscope 2a according to the present embodiment, and an annular array (hereinafter referred to as an ultra (Sonic wave transducer array) 51
- Each ultrasonic transducer constituting the ultrasonic transducer array 51 is connected to an image construction circuit 21 in the ultrasonic observation unit 3 via a drive unit 14 via a signal line.
- Other configurations are the same as those of the first embodiment.
- some and a plurality of ultrasonic transducers generate a pulse voltage excitation signal from the image construction circuit 21 in the ultrasonic observation unit 3. It receives and converts it into ultrasonic waves, which are compression waves of the medium.
- the image construction circuit 21 delays each excitation signal so that each excitation signal arrives at each ultrasonic transducer at a different time. This delay is applied so that an ultrasonic wave excited by each ultrasonic transducer forms a single ultrasonic beam when superposed in the subject.
- the ultrasonic beam is irradiated to the outside of the ultrasonic endoscope 2a, and the reflected echo from the inside of the multiple specimen returns to each ultrasonic transducer via a path opposite to that of the ultrasonic beam.
- Each of the supersonic dragons converts the reflection echo into an electrical echo signal and transmits the signal to the image construction circuit 21 through a path opposite to the excitation signal.
- the image construction circuit 21 reselects a plurality of ultrasonic transducers involved in the formation of the ultrasonic beam so that the ultrasonic beam performs the radial scanning indicated by the arrow in FIG. 12, and transmits the excitation signal again. I do. In this way, the angle of the ultrasonic beam changes. By repeating this repeatedly, so-called electronic radial scanning is realized.
- the flexible shaft 16 is twisted, and the twist is not uniform among a plurality of radial tomographic images. This may cause distortion on the path tomographic image. This is because in normal mechanical radial scanning, the rotation angle position of the motor 13 is adjacent to the motor 13 and is detected by a low-speed encoder.
- the radial scanning in the present embodiment may be a radial scanning of 360 ° all around or a radial scanning of less than that, for example, 270 °.
- a capsule-type ultrasonic endoscope (hereinafter, referred to as a capsule ultrasonic endoscope) 101 is employed as a radial scanning ultrasonic probe.
- the capsule ultrasonic endoscope 101 is equipped with a transmission coil 17, an ultrasonic transducer 12, a rigid shaft 104, an ultra-compact module 102, and a signal cable 103. ing. Note that, unlike the first embodiment, the drive unit 14 does not include the module 13. Instead, a micro motor 102 is provided in the capsule ultrasonic endoscope 101.
- the ultrasonic vibrator 12 is connected to a rigid rod-shaped rigid shaft 104.
- the rigid shaft 104 is connected to the micromotor 102.
- the ultrasonic vibrator 12 is a rigid shaft 104, an ultra-compact module 102, a signal line 105 passing through a signal cable 103, a driving unit 13 through an ultrasonic observation unit 3 through a driving unit 13. It is connected to the image construction circuit 21 inside.
- the transmission coil 17 applies a magnetic field to the space and is connected to the coil drive circuit 31 in the position detection unit 4 via the signal line 105.
- the flexible shaft 16 is twisted, and this twist is There is a concern that the unevenness between multiple radial tomograms may cause distortion on the path tomogram. This is because in normal mechanical radial scanning, the rotational angle position of the motor is detected by a rotary encoder adjacent to the motor. However, in this embodiment, this concern was solved by providing the ultra-compact motor 102 and the rigid shaft 104 in the vicinity of the ultrasonic transducer 12 instead of the flexible shaft 16.
- the capsule ultrasonic endoscope 101 since the capsule ultrasonic endoscope 101 is used, the subject can easily drink this capsule and the burden is small.
- the capsule ultrasound endoscope 101 is usually difficult for the operator to operate the radial scanning plane, so it is very difficult to know where the subject is being observed. By observing the path tomographic image using, the operator can make an easy-to-understand diagnosis.
- the endoscope 101 can be reduced in size.
- the capsule ultrasonic endoscope 101 it is very difficult for the capsule ultrasonic endoscope 101 to be artificially advanced and retracted. However, a path tomographic image is created in the course of the swallowing, falling, and peristaltic movement of the capsule ultrasound endoscope 101, and the operator can observe it. Other effects are the same as those of the first embodiment.
- the ultrasonic diagnostic apparatus is useful as an apparatus for detecting the spread of an observation site in a tube.
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- Computer Networks & Wireless Communication (AREA)
- General Physics & Mathematics (AREA)
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Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/514,807 US7488287B2 (en) | 2002-09-27 | 2003-09-12 | Ultrasonic diagnosing system |
DE60336915T DE60336915D1 (de) | 2002-09-27 | 2003-09-12 | Ultraschalldiagnosesystem |
EP03798403A EP1543775B1 (en) | 2002-09-27 | 2003-09-12 | Ultrasonic diagnosing system |
AT03798403T ATE506893T1 (de) | 2002-09-27 | 2003-09-12 | Ultraschalldiagnosesystem |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2002-283804 | 2002-09-27 | ||
JP2002283804A JP4328077B2 (ja) | 2002-09-27 | 2002-09-27 | 超音波診断装置 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2004028373A1 true WO2004028373A1 (ja) | 2004-04-08 |
Family
ID=32040573
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2003/011692 WO2004028373A1 (ja) | 2002-09-27 | 2003-09-12 | 超音波診断装置 |
Country Status (6)
Country | Link |
---|---|
US (1) | US7488287B2 (ja) |
EP (1) | EP1543775B1 (ja) |
JP (1) | JP4328077B2 (ja) |
AT (1) | ATE506893T1 (ja) |
DE (1) | DE60336915D1 (ja) |
WO (1) | WO2004028373A1 (ja) |
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JP4868959B2 (ja) * | 2006-06-29 | 2012-02-01 | オリンパスメディカルシステムズ株式会社 | 体腔内プローブ装置 |
EP2063785A4 (en) | 2006-09-06 | 2011-08-31 | Innurvation Inc | SYSTEM AND METHOD FOR EXCHANGE OF ACOUSTIC INFORMATION INVOLVING A LOW-POWERFUL CAPABLE OF INTEGRATION |
US20080171931A1 (en) * | 2007-01-16 | 2008-07-17 | Michael Maschke | Device and procedure for cardiac treatment with a MRI - X-ray hybrid system |
JP4814201B2 (ja) * | 2007-11-21 | 2011-11-16 | パナソニック株式会社 | 内視鏡装置および内視鏡用カメラ装置 |
WO2010005571A2 (en) | 2008-07-09 | 2010-01-14 | Innurvation, Inc. | Displaying image data from a scanner capsule |
JP5586465B2 (ja) * | 2008-07-15 | 2014-09-10 | 株式会社日立メディコ | 超音波診断装置 |
JP5431852B2 (ja) * | 2009-09-30 | 2014-03-05 | テルモ株式会社 | 画像診断装置及びその作動方法、並びにプログラム |
JP5399844B2 (ja) * | 2009-09-30 | 2014-01-29 | テルモ株式会社 | 画像診断装置及びその作動方法 |
US8647259B2 (en) * | 2010-03-26 | 2014-02-11 | Innurvation, Inc. | Ultrasound scanning capsule endoscope (USCE) |
US8961420B2 (en) | 2010-04-01 | 2015-02-24 | Siemens Medical Solutions Usa, Inc. | System for cardiac condition detection and characterization |
JP2012075702A (ja) * | 2010-10-01 | 2012-04-19 | Fujifilm Corp | 管状構造物内画像再構成装置、管状構造物内画像再構成方法および管状構造物内画像再構成プログラム |
EP2500741A1 (en) * | 2011-03-17 | 2012-09-19 | Koninklijke Philips Electronics N.V. | Magnetic resonance measurement of ultrasound properties |
WO2015152017A1 (ja) | 2014-04-03 | 2015-10-08 | 日本たばこ産業株式会社 | 低タールメンソールシガレット |
US10786553B2 (en) | 2014-10-23 | 2020-09-29 | Q-Sera Pty Ltd. | Clotting composition |
JP2016086880A (ja) * | 2014-10-30 | 2016-05-23 | ジーイー・メディカル・システムズ・グローバル・テクノロジー・カンパニー・エルエルシー | 超音波画像表示装置及びその制御プログラム |
US11564660B2 (en) * | 2016-03-04 | 2023-01-31 | Canon Medical Systems Corporation | Ultrasonic diagnostic apparatus and method for generating ultrasonic image |
CN115361910A (zh) * | 2020-03-30 | 2022-11-18 | 泰尔茂株式会社 | 图像处理装置、图像处理系统、图像显示方法及图像处理程序 |
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- 2003-09-12 AT AT03798403T patent/ATE506893T1/de not_active IP Right Cessation
- 2003-09-12 US US10/514,807 patent/US7488287B2/en active Active
- 2003-09-12 WO PCT/JP2003/011692 patent/WO2004028373A1/ja active Application Filing
- 2003-09-12 EP EP03798403A patent/EP1543775B1/en not_active Expired - Lifetime
- 2003-09-12 DE DE60336915T patent/DE60336915D1/de not_active Expired - Lifetime
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Also Published As
Publication number | Publication date |
---|---|
ATE506893T1 (de) | 2011-05-15 |
JP4328077B2 (ja) | 2009-09-09 |
US7488287B2 (en) | 2009-02-10 |
JP2004113630A (ja) | 2004-04-15 |
DE60336915D1 (de) | 2011-06-09 |
EP1543775A4 (en) | 2007-09-19 |
EP1543775A1 (en) | 2005-06-22 |
EP1543775B1 (en) | 2011-04-27 |
US20050228275A1 (en) | 2005-10-13 |
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