JP6902012B2 - Medical image display terminal and medical image display program - Google Patents

Description

An object of the present invention is to provide a medical image display terminal and a medical image display program capable of displaying a medical image obtained by imaging a subject and performing various image processing easily and intuitively.

Currently, CT (Computed Tomography) equipment, MRI (Magnetic Resonance Imaging) equipment, PET (Positron Emission Tomography) equipment, ultrasonic diagnostic equipment, angiography (angiography) imaging equipment and the like are known as medical diagnostic imaging equipment. There is.

In recent years, for example, a contrast-enhanced CT examination is performed before surgery is performed on an organ such as the liver in which blood vessels are intricately entwined, a fluoroscopic image of the site to be treated is prepared, and the image is confirmed on a workstation. Preoperative simulation may also be performed. Such simulations are useful for studying treatment plans. For example, Patent Document 1 also discloses a technique of displaying an organ such as a liver on a tablet terminal to simulate a surgical operation.

Japanese Unexamined Patent Publication No. 2014-54358

Since the technique of Patent Document 1 uses a tablet terminal, it is useful in that it can be carried anywhere and perform preoperative simulation. For example, a plurality of anatomical structures included in a medical image. It is more useful and contributes to practical use if it is equipped with a graphical user interface that can switch the display of the above and perform excision operations by a simple method.

The present invention has been made in view of these problems, and an object of the present invention is to provide a medical image display terminal and a medical image display program capable of performing various image processing easily and intuitively. is there.

A form of medical image display terminal of the present invention for solving the above problems is as follows:
A medical image display terminal including a display, an operation input device, and a control unit.
The control unit
To display a medical image containing at least one anatomical structure on the display.
Identifying the first point and the second point designated by the operator via the operation input device, and
Dividing the anatomical structure into a plurality of parts using the line defined by the first and second points as a cutting reference line.
A medical image display terminal that is configured to do.

(Explanation of terms)
The "anatomical structure" refers to an object (for example, an organ, a bone, a blood vessel, etc.) that can be recognized in the subject, and includes fat, a lesion such as a tumor, and the like.
"Terminal" refers to an information processing device that is connected to a network or used by Sudan Doaron to process data. Any peripheral device may be connected to the information processing device. Basically, it is preferable that various functions are provided in one device such as a tablet terminal or a laptop computer, but in some cases, some of the functions may be arbitrarily provided, for example, depending on the load. It can also be configured functionally or physically distributed in units.
"Connection" means that, in addition to the case where two elements are directly connected, one element and another element are indirectly connected via some intermediate element without departing from the spirit of the present invention. Including cases.

According to the present invention, it is possible to provide a medical image display terminal and a medical image display program capable of performing various image processing easily and intuitively.

It is a figure which shows the example of the block diagram of the medical image display terminal of one Embodiment. It is a schematic appearance figure of the medical image display terminal configured as a tablet terminal. It is a figure which shows an example of the component | component of a hospital system. It is a figure which shows an example of a three-dimensional medical image. It is a figure for demonstrating the state of designating two points for arbitrary objects on a three-dimensional medical image. It is a figure for demonstrating how to fine-tune one of the designated points. It is a figure which shows the example which divides a liver. It is a figure for demonstrating the state of touching a part of the divided liver. It is a figure which shows the state which only a part of the divided liver is hidden. It is a flowchart which shows the flow of the operation procedure as an example. It is a figure for demonstrating the procedure of area designation. It is a figure for demonstrating the procedure (example) of area designation. It is a figure for demonstrating the procedure (other example) of area designation. It is a figure which shows the liver which designated the region. It is a figure which shows an example which performs the predetermined image processing on the medical image of a patient's head.

Embodiments of the present invention will be described below with reference to the drawings.

The medical image display terminal 101 (also simply referred to as an image display terminal) of the present embodiment has a configuration as shown in FIGS. 1 and 2, and as an example, a tablet terminal or a laptop PC having a touch panel display. It is composed of a portable terminal such as (notebook PC). FIG. 2 shows an example of a tablet terminal. The medical image display terminal 101 may be configured by installing a medical image display program according to an embodiment of the present invention on a commercially available general-purpose tablet terminal or the like.

As shown in FIG. 2, in this example, the image display terminal 101 has a thin housing 101a, and a touch panel display 161'is provided on one surface of the housing 101a. Such an image display terminal 101 may be used by being connected to a hospital system, for example, as shown in FIG. The hospital system of this example includes the following devices connected to the network 30: an imaging device 1, a drug solution injection device 10, a hospital information system HIS (Hospital Information System) 21, and a radiological information system. A certain RIS (Radiological Information System) 22, a PACS (Picture Archiving and Communication Systems) 23 which is an image storage communication system, a workstation 24, a printer 25, and the like. Not all of these are essential components, and some may be omitted. Each of the above elements may be only one or a plurality.

Examples of the imaging device 1 include imaging devices such as a CT device, an MR device, and an angiography device. Of course, other types of image pickup devices may be used, or a plurality of image pickup devices of the same type or different types may be used. The drug solution injection device 10 may be at least a contrast medium injection device that injects a contrast medium. Specifically, a drive mechanism for pushing out the drug solution from a container (syringe in one example) filled with the drug solution and its operation. It may be provided with a control circuit for controlling. As an example, a contrast agent injection device including an injection head and a console can be utilized.

With reference to FIG. 1 again, the image display terminal 1 includes a display 161, a touch panel 163, an input device 165, a communication unit 167, an interface 168, a slot 169, a control unit 150, and a storage unit 159. Not all of these are essential, and some may be omitted.

Examples of the display 161 include devices such as a liquid crystal panel and an organic EL panel. A touch panel type display in which the touch panel 163 is integrally provided can also be used. As the touch panel, a touch panel having a resistance film, a capacitance, an electromagnetic induction, a surface acoustic wave, an infrared ray or the like can be used. As a specific example, it may be capable of detecting multi-touch, which is a touch at a plurality of positions such as a capacitance method. The touch operation can be performed using a user's finger, a touch pen, or the like. The touch panel may detect the start of a touch operation on the touch panel, the movement of the touch position, the end of the touch operation, and the like, and output the detected touch type and coordinate information.

Examples of the input device 165 include a physical button, a microphone, and the like. Further, a detection device such as a "Leap sensor" (manufactured by Leap Motion) capable of inputting the operator in a non-contact manner may be provided as the input device 165. The "Leap sensor" is an input device capable of non-contactly recognizing the movement of the operator's finger, and specifically, has an infrared irradiation unit, an infrared camera, and the like. By taking a picture of the reflected light when the irradiated infrared rays hit the hand with a camera and performing image analysis, the position, movement, shape, etc. of the hand or finger in the three-dimensional space are detected in real time. .. This sensor may be used by being connected to a tablet terminal or a laptop PC by wire or wirelessly. Without limitation, it may be such that it is connected to the interface 168 by wire.

The communication unit 167 is a unit for enabling communication with an external network or device by a wired method or a wireless method. The communication unit 167 may have a transmitter for transmitting data to the outside, a receiver for receiving data from the outside, and the like. The interface 168 is for connecting various external devices and the like, and although only one is shown in the figure, a plurality of interfaces may be provided as a matter of course.

The control unit 150 has a central processing unit (CPU), a memory, and the like, and performs various arithmetic processes. The various processes performed by the control unit 150 may be realized by (i) a computer program or (ii) hardware by wired logic. In the present embodiment, the control unit 150 has an image display unit 155a, an operation determination unit 155b, and a display change unit 155c as conceptual configurations for realizing a predetermined function.

The image display unit 155a may acquire medical image data of the subject captured in advance from the outside, create a three-dimensional medical image based on the medical image data, and display the three-dimensional medical image on the display 161. Alternatively, the data of the three-dimensional medical image created externally may be acquired and displayed on the display 161.

As an example, the image display unit 155a displays each of the anatomical structures such as the liver and blood vessels as independent objects. Further, the anatomical structure may be automatically recognized and displayed in different colors.

The operation determination unit 155b accepts an input operation on the touch panel 163 and an input operation on the input device 165 (particularly, a Leap motion sensor or the like). Examples of the type of input operation include a touch operation and a predetermined gesture operation (long press operation, swipe operation, drag operation, pinch-in operation, pinch-out operation, etc.). The operation determination unit 155b determines and accepts these inputs.

The image processing unit 155c performs various image processing based on, for example, the operation received by the operation determination unit 155b. For example
-Rotation function, translation function, of 3D displayed image,
-Image enlargement / reduction function, image transparency change function,
− Object display / non-display switching function,
-Object cut (split) function,
-Object area specification function, etc. The specific contents of these functions will be described in detail in a series of operations described later.

With reference to the entire FIG. 1 again, the storage unit 159 may be composed of a hard disk drive (HDD: Hard Disk Drive), a solid state drive (SDD: Solid State Drive), and / or a memory. An OS (Operating System) program or a medical image processing program (including algorithm data, graphical user interface data, etc.) according to an embodiment of the present invention may be stored. In addition, other programs used for various processes, tables, databases, etc. are stored as needed. The computer program may be executed by being loaded into the memory of the control unit and cooperate with hardware such as a CPU to form a control unit having a function as in the present embodiment. ..

The computer program may be downloaded in whole or in part from an external device when necessary via an arbitrary network. The computer program may be stored in a computer-readable recording medium, and the "recording medium" includes a memory card, a USB memory, an SD card (registered trademark), a flexible disk, a magneto-optical disk, a ROM, an EPROM, an EEPROM, and the like. It shall include any "portable physical medium" such as CD-ROM, MO, DVD, and Blu-ray® Disc. The computer program can also be configured as a program product. The medical image display terminal of the present embodiment may be provided with a slot 169 for reading the storage medium as described above.

(motion)
Subsequently, an operation example of image display on the medical image display terminal of the present embodiment will be described. 4A to 4C schematically show images of the subject's liver and its surroundings, which have been imaged in advance, as an example. In the following description, it is assumed that the operator operates the touch panel with a finger, but of course, a touch pen or the like may be used. Further, although the input on the touch panel will be described as an example, it may be a non-contact input using Leap motion as a matter of course. The contact type input means such as a touch panel and the non-contact type input means such as Leap motion may be provided with both input methods, or may be provided with only one of them.

The image display terminal 101 is, as an example, a medical image as shown in FIG. 4A when the operator performs an operation for displaying a medical image of the subject (for example, touching a predetermined icon or the like on the touch panel). 65 is displayed. As an example, this medical image is a three-dimensional image created based on image data obtained by imaging a subject, and here, the anatomical structures of the liver 71 and blood vessels 73 and 75 are schematically shown. ing.

The data of the medical image 65 may be read by the image display terminal 101 from an external device connected by wire or wirelessly. This image data may be stored in the storage unit 159 of the image display terminal 101. Examples of the "external device" include a predetermined database server, PACS23, workstation 24, and the like.

(About various functions)
The image display terminal 101 displays each anatomical structure such as the liver 71, the blood vessels 73, and 75 as independent objects (that is, each can be individually selected and the display can be switched on and off). .. Each object is preferably displayed in a different color. Blood vessels and similar anatomical structures may be such that at least one of the hepatic artery, portal vein, hepatic vein, and bile duct is displayed, for example.

For example, the basic image processing functions of the image display terminal 101 (the medical image display program of the present embodiment in another way) are as follows:
-Rotation function-Enlargement / reduction function-Display transparency change function-Display / non-display switching function-Cut function-Area specification function, etc.

Hereinafter, they will be described in order. It is not necessary to have all of these functions, and some of them may be omitted.

(Rotation function)
When the operator touches the screen and moves his / her finger, the image display terminal 101 changes the display direction of the three-dimensional medical image 65 accordingly. With such a rotation function, the operator can observe the desired target portion from an arbitrary angle.

(Enlargement / reduction function)
When the operator touches two points on the screen and performs an operation (pinch-out operation, pinch-in operation) to separate or bring the two points closer to each other, the image display terminal 101 displays accordingly. Enlarge or display the image that is displayed. With such a function, the operator can easily enlarge or reduce the image and confirm it in a desired size by simply moving two fingers on the screen, for example.

(Display transparency switching function)
The image display terminal 101 changes the display density when the operator touches any of the anatomical structures (for example, the liver 71). Specifically, it switches between the normal display state and the semi-transparent state, that is, it becomes the semi-transparent state when it is touched once, and returns to the normal display state when it is tapped again. It may be something like. In other words, the configuration is such that the first transmittance (transparency 0% in one example) and the second transmittance (semi-transparent) are switched. As another aspect, the transparency is set to a plurality of stages such as 0%, 30%, 70%, and 100% (non-display), and the display density is sequentially switched each time the tap is made. May be good. In this case, 100% transparency (that is, the hidden state) may be excluded from this loop. As a matter of course, the specific numerical value of the transparency can be changed as appropriate, and in short, the transparency may be set to at least a plurality of stages so that they can be switched.

According to such a display transparency switching function, the display transparency switching function can be exhibited simply by touching an arbitrary anatomical structure. Therefore, the operation can be performed easily and intuitively as compared with the method in which it is necessary to separately select some icon or the like or select a command in order to switch the transparency.

Further, even when the display is switched in a loop shape as described above, it is preferable in that it is not necessary to separately select an icon or the like to return to the original display state. Further, since such loop-shaped display switching can be realized only by changing the display color of the selected object, it is also preferable in that image processing can be simplified and arithmetic processing can be performed with a small amount of memory.

(Display / non-display switching function)
When the operator touches a predetermined anatomical structure for a certain period of time or longer (one example), the image display terminal 101 sets the anatomical structure as a "selected state". The anatomical structure (eg, liver 71) may be displayed in a different color from the initial state or may be blinked to indicate that it is in the "selected state".

When the operator moves the fingertip (one example) toward the edge of the screen while touching the anatomical structure (for example, the liver 71) in the selected state, the image display terminal 101 (swipe operation, drag operation). Etc.), hide the anatomical structure. In the case of this example, the liver 71 is hidden, and only the three-dimensional images of the blood vessels 73 and 75 remain.

Such a function is useful when the operator wants to see only the desired anatomical structure. Further, according to a method as in the present embodiment, in which an anatomical structure can be directly selected and hidden by simply moving it, the display can be switched on / off only by selecting some icon, for example. The operation can be performed more easily and intuitively than the mode.

The once hidden anatomical structure (eg, liver 71) may be displayed as a thumbnail image in the corner of the screen. This thumbnail image may be (i) always displayed on the screen, or (ii) may appear after a predetermined operation. The thumbnail image may be one as illustrated in FIG. 4F (details will be described later). Although this figure is for the purpose of explaining the "cut function" described later, the thumbnail image 66 can be applied to other than the case where the cut function is used, so the explanation will be made with reference to this. To do. The thumbnail image 66 in the figure includes an image of an anatomical structure that is hidden in a small window. The size of the thumbnail image 66 is not limited, but may be, for example, about 1/16 or less in terms of the area ratio with respect to the display area of the image.

As a "predetermined operation" for displaying a hidden thumbnail image, for example, an operator touches the screen with three or four fingers and puts the fingers in a predetermined direction such as up, down, left, or right. It may be an operation to move. The image display terminal 101 displays a part of the screen of the thumbnail image 66 that has been hidden when the operation is performed.

When the operator touches the thumbnail image 66 and drags, swipes, or flicks it toward the center of the screen (example), the hidden anatomical structure is displayed again. It may be. Of course, it is also possible to redisplay the hidden anatomical structures by simply touching those thumbnail images 66.

(Cut function)
The cut function is performed as follows. An example in which the liver 71 is cut and then a part thereof is hidden will be described below. FIG. 5 is a flowchart of a series of operations.

The image display terminal 101 first displays the medical image 65 as shown in FIG. 4A as step S1. Then, when the operator touches two points on an arbitrary anatomical structure (here, the liver 71), the image display terminal 101 touches the state, that is, the two points, as shown in FIG. 4B. It is determined that this is done (step S2). The timing may be such that the two points can be touched at the same time or substantially at the same time.

Next, in order to exert the function in the case of so-called long press, the image display terminal 101 determines whether or not the state in which the two points are touched continues for a certain period of time or more (step S3).

When it is determined in step S3 that the image display terminal 101 continues for a certain period of time or longer, the image display terminal 101 displays on the screen that the two touched points P1 and P2 have been designated in a predetermined display mode. The "predetermined display mode" may be any, but for example, (i) both points P1 and P2 and the line L1 connecting them are displayed, or (ii) only points P1 and P2. Alternatively, only the line L1 may be displayed. Regarding points P1 and P2, it is not just a small dot, but a slightly larger graphical image (for example, a circle, a rectangle, a polygon, a star, etc.) as shown in FIG. 4B so that the specified position can be clearly seen. However, a circular shape is illustrated here) or the like.

The image display terminal 101 may display the designated points P1 and P2 as they are as shown in FIG. 4C even after the operator releases the screen. Further, it may be configured to accept fine adjustment of the positions of points P1 and P2. For example, the circular graphical images of P1 and P2 and / or the line L1 may be blinked so that the mode for accepting fine adjustment can be understood. In FIG. 4C, as an example, a state in which the point P2 is slightly moved and finely adjusted to the point P2'is illustrated. This fine adjustment may be performed by the operator moving, for example, a graphical image of points P1 and P2 with a finger.

After the designation of the points P1 and P2 is completed in this way, in step S4, for example, the operator touches a predetermined icon (for example, an icon for inputting "OK") on the screen. Then, the cut function cuts the liver by the line L1 connecting the points P1 and P2 as shown in FIG. 4D (step S5). The first part 71-1 and the second part 71-2, which are divided into two parts with the line L1 in between, can be operated as independent anatomical structures. As a method other than the above operation, for example, instead of touching the (i) icon, by touching a predetermined area on the screen, or (ii) touching multiple times (double tap in one example) is common. The above function may be executed by performing an outside operation.

Therefore, for example, when the first portion 71-1 is touched (step S6), the display density is switched as shown in FIG. 4E by the above-mentioned function. Specifically, only the first portion 71-1 is translucently displayed. Touch it again to return to the original display.

Further, for example, when the first part 71-1 is pressed and held for a swipe operation or a drag operation toward the peripheral part of the screen, the part is hidden and the second part 71-2 and the blood vessel 73, Only 75 remain.

The hidden first portion 71-1 is displayed as a thumbnail image 66 in the peripheral portion of the screen, or as described above, although it is hidden at this point, a predetermined operation by the operator ( For example, the thumbnail image 66 is displayed when three or four fingers are simultaneously moved on the screen). The operation of returning the part in the thumbnail image 66 to the original display is also as described above.

According to the configuration in which the division function can be exerted by pressing and holding two points as in the present embodiment, for example, some icon or the like is displayed and the function is exerted by selecting it. Therefore, the operation can be performed easily and intuitively. In particular, in the work that requires position designation on an anatomical structure as in the present application, it is possible to cut with one hand and without using a mouse or a dedicated cutting tool. It is very easy to use and very practical in the medical field.

(Area designation)
The image display terminal 101 designates a part of the anatomical structure as an area by the following operation of the operator. FIG. 6A shows a state in which the two points P1 and P2 are touched as in the operation described with reference to FIG. 4B (note that the operator's finger is still touching the two points on the screen). However, the illustration is omitted).

From this state, then, as shown in FIG. 6B, for example, when the operator moves two fingers (simultaneous movement of two fingers, but not limited to), the image display terminal 101 moves. The positions of the latter two points P1'and P2'are specified, and a substantially quadrangular area is specified based on the positions. Specifically, a quadrangle surrounded by four points P1 and P2 before the movement and two points P1'and P2'after the movement is designated as an area.

Here, as in the above, even if the operator releases the hand, a substantially quadrangle of the designated area remains on the screen, and the positions of the respective points P1, P2, P1', and P2'are individually moved to position the positions. It is also preferable that the image display terminal 101 is configured so that fine adjustment can be performed. The method of determining the designated area may be, for example, such that the operator touches a predetermined icon (for example, an icon for inputting "OK") on the screen. Instead, the terminal 101 may automatically determine the area when a certain time has passed. It should be noted that this is a common matter regardless of the shape of the designated area. In addition to input such as operating the icon for "OK" input, (i) by touching a predetermined area on the screen, or (ii) touching multiple times (double tap in one example) is not valid. It is the same as above that this function may be executed by performing an operation.

When the positions of the four points P1, P2, P1', and P2'are specified as shown in FIG. 6B, the circles of the points P1, P2, P1', and P2'(example) so that each position can be finely adjusted. The graphical image of the above and the line connecting them may be blinked.

The area-designated area Sa1 (see FIG. 6B) is separated from other parts and can be operated as an independent object. Therefore, it is possible to change the display density of only the area and switch the display on / off. According to such a function, for example, by hiding only the region Sa1, it is possible to observe the inner blood vessels 73 and 75 and confirm the relationship between the blood vessels 73 and 75 and the liver 71.

It should be noted that the area indication does not necessarily have to be performed with a quadrangle, and a triangular shape or a polygonal shape of a pentagon or more may be designated as an area. Further, in the above, an example of simultaneously moving two fingers to specify an area of a quadrangle is shown, but the present invention is not limited to this, and for example, an operation of specifying an area of a sector like a compass (see below) is performed multiple times. It may be something like designating a quadrangle or polygon as an area.

In the present embodiment, a substantially fan-shaped region may be designated as an example. For example, from the state of touching the two points P1 and P2 as shown in FIG. 6C, the operator makes one finger (for example, the thumb and the point P1) the center of rotation, and the other finger (for example, as a compass) is used. When the index finger and the point P2) are rotated by a predetermined angle, the image display terminal 101 recognizes the operation, identifies the point P2'of the index finger after the movement, and sets the points P1, P2, and P2'to three points. Based on this, a fan-shaped area may be specified. Specifically, an example thereof is a fan shape defined by a line L1 connecting points P1 and P2, a line L2 connecting points P1 and P2', and an arc L3 connecting two points P2 and P2'.

The designated region Sa2 (see FIG. 7) is similarly divided from the other parts of the liver 71 and can be operated as an independent anatomical structure. It is the same as the above description that the independent object divided in this way can be made semi-transparent or completely hidden.

In the above, it has been described that the sector area is specified based on the three points P1, P2, and P2', but if the above function is used, for example, a circle or a semicircle can be specified. You can also do it. FIG. 6C is an example in which the index finger is rotated with the thumb as the center of rotation, but conversely, the same area can be specified by rotating the thumb with the index finger as the center of rotation. Needless to say,

In the above description, medical images of the liver and its surroundings have been taken as an example, but of course, the anatomical structure in the present invention is not limited to a specific one. For example, as shown in FIG. 8, a medical image of the head of the subject may be displayed, and various image processing may be performed on the medical image. As an example of image processing, all of the various functions described above can be applied, but in FIG. 8, as an example, a range surrounded by the line L1 is specified for the skull 77, and the area is not. By displaying or translucently displaying, the blood vessels 78 inside can be seen. The area surrounded by the line L1 may be, for example, circular, although it is not limited in any way. Of course, it may be rectangular, fan-shaped, or other shape.

Although the embodiments of the present invention have been described above with reference to the drawings, the present invention can be variously modified without departing from the spirit thereof, and is not limited to the above examples.

(Additional note)
The present specification discloses the following invention (the reference numerals in parentheses do not limit the present invention in any way):
1. 1. A medical image display terminal (101) including a display (161), an operation input device (163, 165), and a control unit (150).
The control unit (150)
To display a medical image containing at least one anatomical structure (71, 73, 75) on the display.
Identifying the first point (P1) and the second point (P2) designated by the operator via the operation input device, and
Dividing the anatomical structure into a plurality of parts by using the line (L1) defined by the first and second points as a cutting reference line.
A medical image display terminal that is configured to do.

2. The control unit (150)
It is configured to accept that two points on the screen have been pressed and held, and to start an operation mode for dividing the anatomical structure into a plurality of parts.

3. 3. The control unit (150)
Accepting that the anatomical structure was touched,
Correspondingly, it is configured to change the transparency of the image of the touched part.

4. The first transparency, which is the default transparency, and the second to nth transparency (n is an integer) different from that are set.
The control unit (150))
When the anatomical structure is touched, the display according to the first to nth transmittances is sequentially switched.

5. The first to nth transmittances are at least translucent, and do not include a completely transparent state.

6. The control unit (150)
In response to the operation of moving the anatomical structure to a predetermined position on the screen
Correspondingly, the anatomical structure is configured to be hidden.

7. The moving operation is either a flick operation, a drag operation, or a swipe operation.

8. The control unit (150)
The anatomical structure once hidden is (i) displayed directly on the screen as a thumbnail image (66), or (ii) a thumbnail image (66) is displayed on the screen when a predetermined operation is performed. ) Is configured to appear.

9. A medical image display terminal (101) including a display (161), an operation input device (163, 165), and a control unit (150).
The control unit (150)
To display a medical image containing at least one anatomical structure (71, 73, 75) on the display.
To specify the first point (P1) and the second point (P2) input by the operator by designating two points at the same time with the operation input device, and
A medical image display terminal that is configured to do.

10. The control unit further
A touch-operable graphical image is displayed at at least one of the first and second points (P1, P2).
By moving the graphical image, the positions of those points (P1, P2) are finely adjusted.

11. The control unit further
After identifying the first point (P1) and the second point (P2), the operator accepts the operation of moving those points (P1, P2), and the two points (P1', P2) after the movement are accepted. ′) Identify
It is configured to specify the area of the quadrangle defined by the specified four points (P 1, P 2, P 1', P 2').

The movement of the points (P1, P2) may be performed "simultaneously" as an example. Here, "simultaneous" does not necessarily have to be completely simultaneous, and includes a case where the time is slightly different (for example, 1 to 2 sec or less) but is almost simultaneous. As another example, as described above, in one example, a quadrangle or a polygon may be designated as a region by performing an operation of designating a sector region a plurality of times like a compass.

12. The control unit further
After identifying the first point (P1) and the second point (P2), the operator rotates one of the two points (P2) around the other point (example: P1). Accept the operation, accept the input, identify the second point (P2') after moving, and
It is configured to specify the range of the triangle or sector defined by the three specified points (P1, P2, 2').

13. On the computer
The process of displaying a medical image containing at least one anatomical structure (71, 73, 75) on the display.
A process of identifying the first point (P1) and the second point (P2) designated by the operator via the operation input device, and
A process of dividing the anatomical structure into a plurality of pieces by using the line (L1) defined by the first and second points as a cutting reference line.
A medical image display program that lets you do.

14. On the computer
A step of displaying a medical image containing at least one anatomical structure (71, 73, 75) on the display.
A step of identifying the first point (P1) and the second point (P2) designated by the operator via the operation input device, and
A step of dividing the anatomical structure into a plurality of parts using the line (L1) defined by the first and second points as a cutting reference line.
A medical image display method that allows you to do this.

In addition, the above 13. And 14. All of the above 1. In addition to the inventions relating to computer programs and inventions relating to medical image display methods, the present specification relates to the above-mentioned 1. It also discloses an invention having a content subordinate to the invention or an invention having a content corresponding to another independent claim with a modified categorical expression.

1 Imaging device 10 Chemical injection device 71 Liver 73, 75 Blood vessel 101 Medical image display terminal 101a Housing 150 Control unit 155a Image display unit 155b Operation judgment unit 155c Display change unit 159 Storage unit 161 Display 161'Touch panel display 163 Touch panel 165 input Device 167 Communication 168 Interface 169 Slot

Claims (10)

A medical image display terminal including a display, a touch panel type operation input device, and a control unit.
The control unit
To display a medical image containing at least one anatomical structure on the display.
To specify the first point and the second point input by the operator by continuously designating two points at the same time via the operation input device for a certain period of time or longer.
Dividing the anatomical structure into a plurality of parts using the straight line connecting the first and second points as a cutting reference line.
Is configured to do, and in addition
The first transmittance, which is the default transmittance, and the second to nth transmittances (n is an integer) different from the first transmittance are set in the medical image display terminal.
The control unit
Accepting that the anatomical structure was touched,
When the anatomical structure is touched, the transparency of the image of the touched portion is configured to sequentially switch the display according to the first to nth transparency. Display terminal. The medical image display terminal according to claim 1 , wherein the first to nth transparency is at least a translucent state and does not include a completely transparent state. The control unit
In response to the operation of moving the anatomical structure to a predetermined position on the screen
Correspondingly, the medical image display terminal according to claim 1 or 2 , which is configured to hide the anatomical structure. The medical image display terminal according to claim 3 , wherein the moving operation is any of a flick operation, a drag operation, and a swipe operation. The control unit
The anatomical structure once hidden is (i) displayed as a thumbnail image directly on the screen, or (ii) a thumbnail image appears on the screen when a predetermined operation is performed. The medical image display terminal according to claim 3 or 4 , which is configured. A medical image display terminal including a display, a touch panel type operation input device, and a control unit.
The control unit
To display a medical image containing at least one anatomical structure on the display.
To specify the coordinate information of each of the first point and the second point input by the operator by continuously designating two points at the same time with the operation input device for a certain period of time or longer.
Is configured to do, and in addition
The first transmittance, which is the default transmittance, and the second to nth transmittances (n is an integer) different from the first transmittance are set in the medical image display terminal.
The control unit
Accepting that the anatomical structure was touched,
When the anatomical structure is touched, the transparency of the image of the touched portion is configured to sequentially switch the display according to the first to nth transparency. Display terminal. The control unit further
A touch-operable graphical image is displayed at at least one of the first and second points.
The medical image display terminal according to claim 6 , wherein the positions of those points are finely adjusted by moving the graphical images. The control unit further
After identifying the first point and the second point, the operator accepts an operation of rotating and moving one of the two points around the other point, accepts an input, and moves the second point. Identify the point,
The medical image display terminal according to claim 6 , wherein the range of the triangle or the fan shape defined by the three specified points is designated as an area. On the computer
The process of displaying a medical image containing at least one anatomical structure on the display,
A process of identifying the first point and the second point input by the operator by continuously designating two points at the same time via a touch panel type operation input device for a certain period of time or longer.
A process of dividing the anatomical structure into a plurality of pieces by using a straight line connecting the first and second points as a cutting reference line.
It was carried out,
further,
The first transparency, which is the default transparency, and the second to nth transparency (n is an integer) different from the first transparency are set in the computer, and the computer is set.
The process of accepting that the anatomical structure has been touched,
When the anatomical structure is touched, the transparency of the image of the touched portion is sequentially switched between the display according to the first to nth transparency.
Ru was carried out, the medical image display program. On the computer
A step of displaying a medical image containing at least one anatomical structure on the display.
A step of identifying the first point and the second point input by the operator by continuously designating two points at the same time via a touch panel type operation input device for a certain period of time or longer.
A step of dividing the anatomical structure into a plurality of parts using a straight line connecting the first and second points as a cutting reference line.
It was carried out,
further,
The first transparency, which is the default transparency, and the second to nth transparency (n is an integer) different from the first transparency are set in the computer, and the computer is set.
The step of accepting that the anatomical structure has been touched,
When the anatomical structure is touched, the transparency of the image of the touched portion is sequentially switched between the display according to the first to nth transparency, and the step of sequentially switching the display.
Ru was carried out, the medical image display method.

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