JP2005296172A - Image display device and rendering information retrieval method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an image display device capable of easily retrieving appropriate rendering information, and a rendering information retrieval method. <P>SOLUTION: The image display device is provided with an image information storage part 5 for storing three-dimensional image data obtained by an image diagnostic device and a plurality of photographing condition items and photographing conditions set for the respective photographing condition items as the auxiliary information of the three-dimensional image data, and a rendering information storage part 4 for storing the rendering information for generating rendering images by a rendering method for the three-dimensional image data corresponding to the photographing condition item and its photographing condition. An image processing part 6 retrieves the rendering information stored in the rendering information storage part 4, generates the rendering image of the three-dimensional image data on the basis of the retrieved rendering information and displays the rendering image at a display part 7. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a three-dimensional image display device and a rendering information retrieval method.

There is an image display device that generates and displays three-dimensional image data obtained from an image diagnostic device as a rendered image by a rendering method. Further, when generating rendering information using a volume rendering method in order to generate three-dimensional image data into a rendered image, for example, image data captured by an X-ray CT apparatus is reconstructed into a three-dimensional image, The three-dimensional image data is subjected to transparency and color, or composition combining them.

The rendering information of transparency and color is set by dividing the CT value by a range that gives the same color and adding a gradient of transparency to the range (see, for example, Patent Document 1).

By the way, in the image display by the volume rendering method, a volume rendering image based on the registered rendering information is displayed. Then, the image display device has 100 types of preset buttons for setting and displaying an arbitrary comment (for example, information such as a photographing part of the image data) for the volume rendering image so as to correspond to various rendering information. As described above, rendering information can be arbitrarily set or changed using these preset buttons.

After selecting the image data from the X-ray CT apparatus, a preset button is selected based on the volume rendering image and an arbitrary comment for rendering information to be displayed by the volume rendering method, and the preset button is clicked. Based on the rendering information such as transparency and color registered in the image data, the image data to be displayed by the volume rendering method is displayed in volume rendering.

If you want to adjust this for the displayed volume rendering image,
The screen of the parity window is displayed, and a slider operation on the screen, input by numerical values, selection and transformation of the transparency curve are performed.
JP 2003-91735 A

Depending on the setting of the rendering information, the quality of the portion that is desired to be observed in the rendered image by the rendering method can be clearly seen or displayed cleanly and smoothly, but the imaging conditions, large blood vessels to be observed, peripheral blood vessels, lungs, intestines, Rendering information varies depending on organs such as the liver and kidneys, organs such as bones, and preferences. It is difficult for a person unfamiliar with the operation to obtain an appropriate rendered image, and it is troublesome for an expert to set the captured image data as appropriate rendering information according to the display purpose.

Therefore, there are many preset buttons as reference examples in which rendering information is set in advance, but the operator selects a preset button with appropriate rendering information registered from among many preset buttons. It is not easy to do.

The present invention has been made to solve the above problems, and an object thereof is to provide an image display device and a rendering information retrieval method capable of easily retrieving appropriate rendering information.

In order to achieve the above object, an image display device of the present invention according to claim 1 includes three-dimensional image data obtained by an image diagnostic device, and a plurality of imaging condition items that are supplementary information of the three-dimensional image data, and Image storage means for storing shooting conditions set for each shooting condition item, and rendering for generating the three-dimensional image data into a rendered image by a rendering method corresponding to the shooting condition item and the shooting condition Rendering information storage means for storing information; image processing means for searching for rendering information stored in the rendering information storage means; and generating a rendering image of the three-dimensional image data based on the searched rendering information; And display means for displaying the rendered image generated by the image processing means. To.

According to the sixth aspect of the present invention, there is provided a rendering information retrieval method according to the present invention, in which three-dimensional image data obtained by an image diagnostic apparatus, a plurality of photographing condition items that are incidental information of the three-dimensional image data, and the photographing condition items. Image storage means for storing shooting conditions set in the above, and rendering information for storing rendering information for generating the three-dimensional image data into a rendered image by a rendering method corresponding to the shooting condition items and the shooting conditions A rendering information search method for an image display device having a storage means, wherein the rendering information stored in the rendering information storage means is searched in a narrowed order starting from the shooting condition item having the highest priority, and the searched rendering Generating and displaying a rendering image of the three-dimensional image data based on the information; And it features.

According to the present invention, when three-dimensional image data obtained by an image diagnostic apparatus is generated and displayed by a rendering method, rendering information is set so that an appropriate rendering image is obtained, and photographing at that time is performed. By registering the condition in the rendering information storage unit corresponding to the preset button, when displaying the subsequent rendered image, the rendering information of the appropriate rendered image is obtained based on the imaging condition captured by the diagnostic imaging apparatus. You can easily search from the registered preset buttons.

In addition, when imaging conditions are limited and a lot of rendering information is not required, a preset button in which the most frequently used rendering information is registered or a preset button in which recently used rendering information is registered is used as an imaging region. You can search every time.

  An embodiment of the present invention will be described.

Hereinafter, an embodiment of an image display device of the present invention will be described with reference to FIGS. In addition,
The present invention relates to three-dimensional image data obtained by an image diagnostic apparatus such as an X-ray CT apparatus, a magnetic resonance image diagnostic apparatus (MRI apparatus), an X-ray diagnostic apparatus, and an ultrasonic diagnostic apparatus. The present invention is applicable to an image display device that displays a rendered image generated using one of various rendering methods such as a maximum value projection method and a minimum value projection method.
Here, a case will be described in which a rendered image generated by volume rendering of three-dimensional image data obtained by an X-ray CT apparatus is displayed on an image display device.

FIG. 1 is a block diagram illustrating a configuration of an image display apparatus according to an embodiment. This image display device 1
Stores a central control unit (CPU) 2, a program storage unit 3 storing programs for performing various controls of the image display device 1, and various conditions necessary for displaying a rendered image. A rendering information storage unit 4; an image information storage unit 5 for storing 3D image data; an image processing unit 6 for reading out the 3D image data stored in the image information storage unit 5 to generate a rendering image; An interface for connecting to a display unit 7 for displaying a rendering image generated by the processing unit 6, an operation unit 8 for operating the image display device 1, and an external device such as the X-ray CT device 11 and the image information collection device 12. 9 and a signal bus 10 for performing signal transfer of each of the above components. Note that the CPU 2 and the image processing unit 6 may be configured by one processor.

The program storage unit 3 stores various control programs such as a calculation program and an operation program for generating a rendering image by a rendering method. C
The PU 2 comprehensively controls each component of the image display device 1 based on the program stored in the program storage unit 3.

In the rendering information storage unit 4, for example, for each preset button 33 shown in FIG. 3, the transparency and color set for a predetermined range of CT values in the rendering method or the predetermined range of CT values are set. Transparency and color rendering information is stored. Then, when the image data stored in the image information storage unit 5 is read, a desired preset button 33 is selected, and a rendering image is generated based on the rendering information set and registered in the preset button 33. Is done.

For each preset button 33, the number of times rendering information is used is accumulated as the number of times rendering information is used, and is stored in the rendering information storage unit 4 together with information such as transparency and color.

Furthermore, the latest time when rendering information is used for each preset button 33 is also stored in the rendering information storage unit 4 together with information such as transparency and color.

The image information storage unit 5 includes image data sent from an external device such as the X-ray CT apparatus 11 or the image information collection apparatus 12 via the interface 9, a patient ID, a patient name, The shooting time, shooting conditions taken by the diagnostic imaging apparatus, shooting condition items, and the like are stored.

For example, the imaging condition items imaged by the X-ray CT apparatus 11 include an imaging region, a contrast medium type,
Contrast agent dose, contrast agent concentration, scan speed, imaging slice thickness, image reconstruction function, filter name, image slice thickness, tube current, tube voltage, exposure reduction filter, FOV, weight, gender, age,
There are dates of birth, and the items of these imaging conditions differ depending on the diagnostic imaging apparatus.

The image processing unit 6 generates a rendering image from the rendering information read from the rendering information storage unit 4 based on the rendering method image generation calculation program stored in the program storage unit 3.

The display unit 7 receives the rendered image generated by the rendering method in the image processing unit 6 and displays it on a display screen such as a CRT. Further, a list of 3D image data stored in the image information storage unit 5, a setting screen for various conditions necessary for generating and displaying a rendered image, and other operations necessary for the entire image display device 1 are performed. Various display screens are also displayed.

The operation unit 8 includes a keyboard, a mouse controller, a mouse, and the like. When selecting 3D image data for displaying a rendering image from the list of 3D image data in the image information storage unit 5, a rendering image is selected. An input operation is performed when various conditions necessary for generation and display are set, and when other conditions necessary for operating the entire image display apparatus 1 are input.

The interface 9 includes an X-ray CT apparatus 11 or an image information collection apparatus 12 using a storage medium such as a magnetic disk or an optical disk, and other image diagnosis apparatuses such as an MRI apparatus, an ultrasonic diagnosis apparatus, and an X-ray diagnosis apparatus (not shown). Provided for connection, 3D image data transmitted from these external devices is received and taken into the image information storage unit 5.

FIG. 2 is a diagram illustrating an example of the captured image selection screen 21 displayed on the display unit 7. On this screen 21, for example, as an image data list of 3D image data obtained from the X-ray CT apparatus 11, image data supplementary information such as examination date, patient ID, patient name, sex, etc., when the image data was taken Indicates that is displayed.

When the desired image data 21a is selected from the image data list, the image data 2
1a is read from the image information storage unit 5 and a three-dimensional image is created, and then displayed on the screen.

FIG. 3 is a diagram showing an example of the Opacity window 31 displayed on the display unit 7.
The Opacity window 31 includes a preset button display area 32 that displays various preset buttons 33 and an object display area 34 that displays rendering information such as transparency and color registered in the various preset buttons 33.

In this example, 24 preset buttons 33 are displayed in the preset button display area 32 in a display arrangement of 3 rows × 8 digits.

The preset button 33 includes a preset button identification display area 33a in which an imaging region and the like can be set, and an image display area 33b in which image data of the imaging region is displayed. Corresponding to each preset button 33, rendering information such as transparency and color when rendering images are displayed, and information on the preset button shooting condition setting screen 51 shown in FIG. It is remembered.

FIG. 4 is a diagram showing an example of a search shooting condition setting screen 41 displayed on the display unit 7 by the operation unit 8. This search shooting condition setting screen 41 is configured by “priority” and “shooting condition item”, and a shooting condition item is set in the “shooting condition item” field and a priority number is set in the “priority” field. And search. Information on the “shooting condition item” and “priority” set in this screen 41 is
It is stored in the rendering information storage unit 4 by the CPU 2.

In the “imaging condition item” column, almost the same number of imaging condition items as the X-ray CT apparatus 11 can be set. For example, when handling the image data of the X-ray CT apparatus 11, the imaging region, the presence or absence of the use of a contrast agent, the contrast agent dosage and contrast agent concentration, the scan speed, the imaging slice thickness when a contrast agent is used, If a reconstruction function or filter is used, the filter name, image slice thickness, tube current, tube voltage, ON / OFF of the exposure reduction filter, the size (FOV) of the imaging region of the subject, weight, gender, age, year of birth The month and day are set.

In the search imaging condition setting screen 41 of FIG. 4, “imaging site”, “presence / absence of contrast medium”, “
This shows a state in which “contrast agent dose”, “contrast agent concentration”, “reconstruction function”, and “imaging slice thickness” are set. In the “priority” column, a priority number corresponding to the “shooting condition item” item is set.

Here, for example, priority “0” is assigned to “imaging region”, priority 1 is assigned to “presence / absence of contrast medium”, and “
"Contrast agent dose" is set to priority 2, "Contrast medium concentration" is set to priority 3, "Reconstruction function" is set to priority 4, and "Slice thickness" is set to priority 5. Yes. The priority 0 is the highest and is given to the shooting condition. This priority can be set up to a maximum of 16 in the order of 0, 1, 2, and 3.

FIG. 5 is a diagram showing an example of a shooting condition setting screen 51 for shooting conditions set for each preset button 33 shown in FIG. The “shooting condition item” and the “priority” set on the search shooting condition setting screen 41 in FIG. 4 are displayed on the preset button shooting condition setting screen 51 for each preset button 33, and correspondingly, “shooting condition setting” is displayed. The shooting conditions can be set in the "" column.

Further, after selecting image data from the image data list of the photographed image selection screen 21 shown in FIG. 2, by selecting an arbitrary preset button 33, presets are made from the photographing conditions attached to the selected image data. Only the shooting condition information set in the shooting condition item displayed on the button shooting condition setting screen 51 can be extracted and set in the “shooting condition setting” field of FIG. The set shooting conditions are set by the CPU 2 using the preset button 3
Every three is stored in the rendering information storage unit 4.

In FIG. 5, for example, “imaging site” is Head, “presence / absence of contrast medium” is “no contrast medium dose”
Is 0 mL, “Contrast Concentration” is 0%, “Reconstruction Function” is FC10, and “Slice Thickness” is 2
The rendering condition in which the display condition such as transparency and color by the volume rendering method is set to appropriate conditions is registered in the preset button 33.

FIG. 6 shows a flowchart for setting the retrieval conditions for each preset button 33 by the image display device 1 and rendering information such as transparency and color by the volume rendering method. The operation of the embodiment will be described below with reference to FIGS.

First, based on the input from the operation unit 8, the CPU 2 displays the search shooting condition setting screen 41 shown in FIG. 4 on the display unit 7. The operator sets shooting condition items which are factors of rendering information such as transparency and color by volume rendering in the “shooting condition item” field of the search shooting condition setting screen 41 (step S1). In the column “”, a priority is set for each item of the photographing condition (step S2).

Next, the CPU 2 creates the captured image selection screen 21 shown in FIG. 2 from the image data read from the image information storage unit 5 based on the input from the operation unit 8 and displays it on the display unit 7. The operator selects image data to be displayed by the volume rendering method from the image data list on the photographed image selection screen 21 (step S3).

Then, the CPU 2 displays the Opacity window 31 shown in FIG. 3 on the display unit 7 based on the input from the operation unit 8. The operator selects an arbitrary preset button 33 from the preset buttons 33 in the Opacity window 31 (step S4), and adjusts rendering information such as transparency and color (step S5). The CPU 2 stores the rendering information of the set shooting conditions in the rendering information storage unit 4 (step S6).

Next, the CPU 2 displays the preset button shooting condition setting screen 51 shown in FIG. 6 on the display unit 7 based on the input from the operation unit 8. The preset button shooting condition setting screen 51 includes information on shooting conditions of the “shooting condition item” set on the search shooting condition setting screen 41 in FIG. 4 among the shooting conditions attached to the image data selected in step S1. Only is captured and displayed in the “shooting condition setting” field of this screen.

The operator presses a confirmation button (not shown) displayed on the preset button shooting condition setting screen 51 from the operation unit 8 (step S7), rendering information such as transparency and color registered in step S6, and The photographing conditions confirmed in step S7 are registered (step S8). Then, the CPU 2 stores the shooting condition and the rendering information in the rendering information storage unit 4 in association with the arbitrary preset button 33.

In addition, when the setting of the imaging condition in the X-ray CT apparatus 11 is insufficient, it can be additionally registered by pressing the confirmation button after adding the insufficient imaging condition on the preset button imaging condition setting screen 51.

FIG. 7 is a flowchart showing a procedure for displaying a volume rendering image by automatically giving rendering information by the volume rendering method to the image data selected from the photographed image selection screen 21 shown in FIG.

The procedure is as follows. According to the flowchart shown in FIG. 6, the high priority shooting is selected from “priority number”, “shooting condition item”, and “shooting condition setting” registered in the preset button shooting condition setting screen 51 of FIG. The preset button 33 closest to the shooting condition of the selected image data is searched in order from the condition item, and the volume rendering image is displayed based on the rendering information registered in the preset button 33.

Hereinafter, “imaging condition item” and “priority” set on the retrieval condition setting screen 41 of FIG. 4 will be described as an example.

First, based on the input from the operation unit 8, the CPU 2 performs the captured image selection screen 2 shown in FIG.
1 is displayed on the display unit 7, and the operator selects desired image data 21 a from the image data list by operating the operation unit 8, and clicks the automatic search button 22. By this operation, the image processing unit 6 causes the shooting conditions attached to the image data 21a and the “shooting condition item” displayed in FIG.
On the basis of “priority”, the search of the photographing condition registered in the rendering information storage unit 4 corresponding to the preset button 33 is started (step S11).

First, it is checked from the rendering information storage unit 4 for the imaging part with the highest priority 0 whether or not there is an imaging part preset button 33 that matches the imaging condition of the image data 21a (
Step S12). If no imaging region is registered in the image data 21a or if there is no preset button 33 that matches the imaging region (No in step S12), CP
U2 indicates that there is no preset button 33 in which the same imaging part as the selected image data 21a is registered based on the search result of the image processing unit 6. For example, “PB of the same imaging part is not registered in FIG. The Opacity window 310 provided with the message 62 is displayed on the display unit 7 (step S14), and the search operation is terminated (step S28).

On the other hand, if there is a preset button 33 with the same imaging region (Yes in step S12),
It is checked whether or not there is a preset button 33 in which the presence or absence of a contrast agent that matches the imaging condition of the image data 21a is registered among the preset buttons 33 that match the imaging region (step S13).

When there is no registration of the presence or absence of the contrast agent in the imaging condition of the image data 21a or when there is no preset button 33 that matches the presence or absence of the contrast agent, the CPU 2
For example, the Opacity window 311 provided with the message 72 “PBs with the highest number of uses and recently used PBs are displayed because PBs with the same contrast medium conditions are not registered” in FIG.
Is displayed on the display unit 7 (step S16), and the search operation is terminated (step S28).

Further, based on the search result of the image processing unit 6, the CPU 2 sets the maximum number of rendering information use times stored in the rendering information storage unit 4 in the descending order of the preset button display area 32 of the Opacity window 311 in order from the left. Up to 8 preset buttons 3
3 is displayed (step S16), and the search operation is terminated (step S28).

Further, based on the search result of the image processing unit 6, the CPU 2 starts from the top of the preset button display area 32 in the Opacity window 311 in the latest time order stored in the rendering information storage unit 4 at the same imaging part as the image data 21 a. In the second row, up to eight preset buttons 33 are displayed in order from the left (step S16), and the search operation is terminated (step S16).
28).

By the way, the preset button 33 displaying the order in which rendering information is used frequently and the latest time in step S16 can be displayed by selecting the use frequency / latest search button 23 on the photographed image selection screen 21 shown in FIG. .

Next, if there is a preset button 33 in which the presence or absence of a contrast medium that matches the imaging conditions of the image data 21a is registered, the presence or absence of the contrast medium is checked (step S15).
When the imaging condition of a includes the use of a contrast medium, the preset button 3 that has used the contrast medium
3 among the preset buttons 33 closest to the contrast agent dose registered in the imaging conditions of the image data 21a, it is checked whether or not there is one preset button 33 for which the same dose is set ( Step S17).

When there is one preset button 33, the image processing unit 6 displays the preset button 3.
3 based on the rendering information registered in the rendering information storage unit 4
For example, the volume rendering image 82 of the image data 21a is displayed on the display unit 7 on the screen 81 of FIG. 10 (step S19), and the search operation is terminated (step S28).

Next, when there are a plurality of preset buttons 33 in step S17 (and image data 21).
(when the contrast agent concentration is registered in the imaging condition a), the preset having the same contrast agent concentration among the preset buttons 33 closest to the projection agent concentration registered in the imaging condition of the image data 21a It is checked whether or not there is one button 33 (step S18). In the case of one, the image processing unit 6 displays the volume rendering image 82 of the image data 21a based on the rendering information registered in the rendering information storage unit 4 corresponding to the preset button 33 as in FIG. Displayed on the unit 7 (step S21), and the search operation is completed (step S21).
Step S28).

Next, when there are a plurality of preset buttons 33 in step S18 (and image data 21).
When the reconstruction function is registered in the shooting condition a), it is checked whether or not there is one preset button 33 in which the same reconstruction function as the image data 21a is registered (step S20). In the case of one image processing unit 7, the image processing unit 7 corresponds to the preset button 33, based on the rendering information registered in the rendering information storage unit 4, as in FIG.
The volume rendering image 82 is displayed on the display unit 7 (step S23), and the search operation is terminated (step S28).

Next, when there are a plurality of preset buttons 33 in step S20 (and image data 21).
(when the imaging slice thickness is registered in the imaging condition of a), among the preset buttons 33 of the imaging slice thickness closest to the image data 21a, there is one preset button 33 in which the same imaging slice thickness is registered. (Step S22). In the case of one, the image processing unit 6 displays the volume rendering image 82 of the image data 21a based on the rendering information registered in the rendering information storage unit 4 corresponding to the preset button 33 as in FIG. Displayed on the unit 7 (step S25), and the search operation is terminated (step S).
28).

Next, when there are a plurality of preset buttons 33 in step S22, it is checked whether or not there are five or more preset buttons 33 (step S24). When the number is four or less, the image processing unit 6 performs volume rendering image 82 of the image data 21a based on the rendering information registered in the rendering information storage unit 4 corresponding to each preset button 33 as in FIG. Is displayed on the display unit 7 (step S26), and the search operation is terminated (step S).
28).

Next, when there are five or more preset buttons 33 in step S24, the CPU 2 displays those preset buttons 33, for example, an Opacity window 312 in which eight preset buttons 33 are arranged in the preset button display area 32 of FIG. After displaying in 7 (
Step S27), the search operation is terminated (step S28).

By the way, if a maximum of four preset buttons 33 are selected from the preset buttons 33 displayed in step S27, a volume rendering image is simultaneously displayed on one screen based on the rendering information set for each preset button 33. Is displayed.

Although not shown in FIG. 7, if the contrast agent dose is not registered in the imaging condition of the image data 21a in step S15, step S15 to step S17 are skipped and step S18 is executed. .

If no contrast agent concentration is registered in the imaging condition of the image data 21a in step S17, step S20 is skipped from step S17 to step S20.

If no reconstruction function is set in the image data 21a in step S18, step S18 to step S20 are skipped and step S22 is executed.

If the imaging slice thickness is not set in the image data 21a in step S20, step S20 to step S22 are skipped and step S24 is executed.

As described above, an X-ray CT apparatus, a magnetic resonance imaging apparatus (MRI apparatus), an X-ray apparatus,
When three-dimensional image data obtained from an image diagnostic apparatus such as an ultrasonic diagnostic apparatus is generated and displayed as a rendered image, an item of predetermined imaging conditions that becomes a rendering image generation factor for each rendering information, and for each item Appropriate rendering information, such as priority and shooting conditions, is registered in the rendering information storage unit 4 in correspondence with the preset button, so that the automatic search button can be used when displaying the subsequent 3D image data as a rendered image. By simply clicking, suitable rendering information can be automatically retrieved from the preset buttons 33.

In addition, when shooting conditions are limited and a lot of rendering information is not needed, simply click on the frequency of use / latest search button and the preset button and the most frequently used rendering information are registered. A preset button in which recently used rendering information is registered can be searched for each imaging region.

The present invention is not limited to the above-described embodiment. For example, more appropriate rendering can be performed by adding the shooting condition item set on the search shooting condition setting screen 41 in FIG. 4 and the priority of the item. Information can be searched.

1 is a block diagram showing a configuration of an image display device according to an embodiment of the present invention. The figure which shows an example of the picked-up image selection screen which concerns on embodiment of this invention. The figure which shows an example of the Opacity window which concerns on embodiment of this invention. The figure which shows an example of the imaging condition setting screen for a search which concerns on embodiment of this invention. The figure which shows an example of the preset button imaging condition setting screen which concerns on embodiment of this invention. 9 is a flowchart showing a procedure for setting a search shooting condition and rendering information to a preset button according to an embodiment of the present invention. The flowchart which shows the procedure to the three-dimensional image display of the image display apparatus which concerns on embodiment of this invention. The figure which shows an example of the Opacity window which provided the message which concerns on embodiment of this invention. The figure which shows an example of the Opacity window which provided the message which concerns on embodiment of this invention. The figure which shows an example of the volume rendering image which concerns on embodiment of this invention. The figure which shows an example of the Opacity window which concerns on embodiment of this invention.

Explanation of symbols

1 Image display device 2 CPU
3 Program storage unit 4 Rendering information storage unit 5 Image information storage unit 6 Image processing unit 7 Display unit 8 Operation unit 9 Interface 21 Captured image selection screen 21a Image data 22 Automatic search button 23 Usage frequency / latest search button 31 Opacity window 32 Preset Button display area 33 Preset button 41 Search condition setting screen for search 51 Preset button shooting condition setting screen

Claims (7)

Image storage means for storing three-dimensional image data obtained by the image diagnostic apparatus, a plurality of photographing condition items that are supplementary information of the three-dimensional image data, and photographing conditions set for each photographing condition item;
Rendering information storage means for storing rendering information for generating the three-dimensional image data into a rendered image by a rendering method corresponding to the photographing condition item and the photographing condition;
Image processing means for retrieving rendering information stored in the rendering information storage means, and generating a rendering image of the three-dimensional image data based on the retrieved rendering information;
An image display apparatus comprising: display means for displaying a rendered image generated by the image processing means. The image display device according to claim 1, wherein when generating the rendered image of the three-dimensional image data, the rendering information is narrowed and searched in order from the imaging condition item having the highest priority. The image display device according to claim 1, wherein the image processing unit searches the rendering information based on a use count set for each rendering information. The image display device according to claim 1, wherein the image processing unit searches the rendering information based on a latest time set for each rendering information. 5. The image processing unit according to claim 1, wherein the image processing unit generates a volume rendering image by a volume rendering method based on transparency and color set in the rendering information or composition of transparency and color. The image display device according to item 1. Image storage means for storing three-dimensional image data obtained by the image diagnostic apparatus, a plurality of photographing condition items that are supplementary information of the three-dimensional image data, and photographing conditions set for each photographing condition item;
A rendering information retrieval method for an image display device, comprising: a rendering information storage unit configured to store rendering information for generating the 3D image data into a rendered image by a rendering method in correspondence with the photographing condition item. And
Perform a narrowing search for the rendering information stored in the rendering information storage means in order from the shooting condition item with the highest priority,
A rendering information search method comprising: generating and displaying a rendering image of the three-dimensional image data based on the searched rendering information. Image storage means for storing three-dimensional image data obtained by the image diagnostic apparatus, a plurality of photographing condition items that are supplementary information of the three-dimensional image data, and photographing conditions set for each photographing condition item;
A rendering information retrieval method for an image display device, comprising: a rendering information storage unit configured to store rendering information for generating the 3D image data into a rendered image by a rendering method in correspondence with the photographing condition item. And
Perform a narrowing search based on the number of times of use and the latest time of rendering information stored in the rendering information storage means,
A rendering information search method comprising: generating and displaying a rendered image of the three-dimensional image data based on the searched rendering information.

Images