Incision simulation device, incision simulation method, and program

1 . An incision simulation device comprising:

a processor,

wherein the processor

acquires an incision line for a three-dimensional organ image showing an organ which is an incision simulation target,

specifies a maximum incision region from the three-dimensional organ image by using an incision maximum amount set for the three-dimensional organ image,

specifies an incision process position within a range in which a position of the incision line is set to a lower limit and a position of the maximum incision region is set to an upper limit,

specifies first distance data indicating a distance from the incision line set for a surface of the organ,

specifies second distance data indicating a distance from an outer edge line of the maximum incision region,

specifies third distance data by interpolating the first distance data and the second distance data according to the incision process position,

specifies an incision region from the three-dimensional organ image based on the third distance data, and

displays a rendering image of the organ generated with respect to the three-dimensional organ image and including an incision region rendering image generated in the incision region corresponding to a position of the incision region of the rendering image on a display.

2 . The incision simulation device according to claim 1 ,

wherein the processor

acquires a three-dimensional image including the three-dimensional organ image, and

extracts the three-dimensional organ image from the three-dimensional image.

3 . The incision simulation device according to claim 1 ,

wherein the processor acquires the incision line received by a reception device.

4 . The incision simulation device according to claim 1 ,

wherein the incision maximum amount is defined based on the incision line, an incision width with the incision line as a reference, and an incision depth set for the three-dimensional organ image.

5 . The incision simulation device according to claim 4 ,

wherein the processor acquires the incision width received by a reception device.

6 . The incision simulation device according to claim 1 ,

wherein the data indicating the distance from the outer edge line is data representing an inside of the maximum incision region in the three-dimensional organ image by one of a positive value and a negative value, and representing an outside of the maximum incision region in the three-dimensional organ image by the other of the positive value and the negative value.

7 . The incision simulation device according to claim 1 ,

wherein the processor performs volume rendering in the incision region at a timing when the incision region is specified.

8 . The incision simulation device according to claim 1 ,

wherein the processor outputs data for displaying the incision region rendering image obtained by performing volume rendering in the incision region on the display.

9 . The incision simulation device according to claim 1 ,

wherein the processor skips an operation of volume rendering in the maximum incision region.

10 . An incision simulation method comprising:

acquiring an incision line for a three-dimensional organ image showing an organ which is an incision simulation target;

specifying a maximum incision region from the three-dimensional organ image by using an incision maximum amount set for the three-dimensional organ image;

specifying an incision process position within a range in which a position of the incision line is set to a lower limit and a position of the maximum incision region is set to an upper limit;

specifying first distance data indicating a distance from the incision line set for a surface of the organ;

specifying second distance data indicating a distance from an outer edge line of the maximum incision region;

specifying third distance data by interpolating the first distance data and the second distance data according to the incision process position;

specifying an incision region from the three-dimensional organ image based on the third distance data; and

displaying a rendering image of the organ generated with respect to the three-dimensional organ image and including an incision region rendering image generated in the incision region corresponding to a position of the incision region of the rendering image on a display.

11 . A non-transitory computer readable recording medium storing a program causing a computer to execute a process comprising:

acquiring an incision line for a three-dimensional organ image showing an organ which is an incision simulation target;

specifying a maximum incision region from the three-dimensional organ image by using an incision maximum amount set for the three-dimensional organ image;

specifying an incision process position within a range in which a position of the incision line is set to a lower limit and a position of the maximum incision region is set to an upper limit;

specifying first distance data indicating a distance from the incision line set for a surface of the organ;

specifying second distance data indicating a distance from an outer edge line of the maximum incision region;

specifying third distance data by interpolating the first distance data and the second distance data according to the incision process position;

specifying an incision region from the three-dimensional organ image based the third distance data; and

displaying a rendering image of the organ generated with respect to the three-dimensional organ image and including an incision region rendering image generated in the incision region corresponding to a position of the incision region of the rendering image on a display.