Medical image processing apparatus, medical image processing method, and medical imaging system

Patent metadata

Field	Value
Publication number	US-9905006-B2
Application number	US-201615014130-A
Country	US
Kind code	B2
Filing date	Feb 3, 2016
Priority date	Feb 12, 2015
Publication date	Feb 27, 2018
Grant date	Feb 27, 2018

Abstract

A medical image processing apparatus according to an embodiment includes processing circuitry. The processing circuitry implements registration on a medical image and each of a plurality of reference images. The processing circuitry performs deformation on the medical image based on a result of the registration. The processing circuitry sets a first region of interest on the deformed medical image. The processing circuitry sets on at least two of the plurality of reference images, a second region of interest corresponding to the first region of interest. The processing circuitry retrieves from the reference images on which the second region of interest is set, a reference image similar to an image in the first region of interest.

First claim

What is claimed is:

1. A medical image processing apparatus, comprising:
processing circuitry configured to
implement registration on a medical image and each of a plurality of reference images;
perform deformation on the medical image based on a result of the registration;
set a first region of interest on the deformed medical image;
set, on at least two of the plurality of reference images, a second region of interest corresponding to the first region of interest; and
retrieve, from the reference images on which the second region of interest is set, a reference image similar to an image in the first region of interest.

2. The medical image processing apparatus according to claim 1 , wherein the processing circuitry is further configured to retrieve a reference image that has highest similarity with the image in the first region of interest.

3. The medical image processing apparatus according to claim 1 , wherein the processing circuitry is further configured to
set a plurality of first regions of interest; and
set a plurality of second regions of interest corresponding respectively to each of the plurality of set first regions of interest.

4. The medical image processing apparatus according to claim 3 , wherein the processing circuitry is further configured to select at least one of the plurality of first regions of interest, wherein the processing circuitry retrieves a reference image which has a highest similarity with each of the images in the first region of interest selected by the processing circuitry.

5. The medical image processing apparatus according to claim 1 , wherein the processing circuitry is further configured to display, on a display at a same time, the medical image and a reference image retrieved by the processing circuitry.

6. The medical image processing apparatus according to claim 1 wherein the plurality of reference images are atlas images.

7. The medical image processing apparatus according to claim 1 , wherein the processing circuitry is further configured to set at least one of the plurality of first regions of interest based on a position template in which each of the plurality of first regions of interest is arranged in a predetermined positional relationship.

8. The medical image processing apparatus according to claim 7 , wherein the processing circuitry is further configured to create the position template based on input from an operator.

9. The medical image processing apparatus according to claim 1 , wherein the processing circuitry is further configured to
extract first image characteristics, which are characteristics of an image included in the first region of interest set on the medical image; and
store second image characteristics, which are characteristics of an image included in the second region of interest set on the at least two of the plurality of the reference images; and
retrieve the reference image based on a similarity between the first image characteristics and the second image characteristics.

10. The medical image processing apparatus according to claim 1 , wherein the processing circuitry is further configured to
receive designation of types of the medical images based on input from an operator; and
add the medical image of the designated type as the reference image.

11. The medical image processing apparatus according to claim 1 , wherein the medical image and the plurality of reference images include an image of a brain.

12. The medical image processing apparatus according to claim 1 , wherein the medical image and the plurality of reference images include at least one of magnetic resonance image, a computed tomography image, an ultrasound image, and an X-ray image.

13. A medical image processing apparatus, comprising:
processing circuitry configured to
implement registration on a medical image and each of a plurality of reference images;
perform deformation on at least one of the plurality of reference images based on a result of the registration;
set a first region of interest on the medical image;
set, on the deformed reference images, a second region of interest corresponding to the first region of interest; and
retrieve, from the reference images on which the second region of interest is set, a reference image similar to an image in the first region of interest.

14. A medical image processing method, comprising:
implementing registration on a medical image and each of a plurality of reference images;
performing deformation on the medical image based on a result of the registration;
setting a first region of interest on the deformed medical image;
setting, on at least two of the plurality of reference images, a second region of interest corresponding to the first region of interest; and
retrieving, from the reference images on which the second region of interest is set, a reference image similar to an image in the first region of interest.

15. A medical imaging system, comprising:
processing circuitry configured to
implement registration on a medical image and each of a plurality of reference images;
perform deformation on the medical image based on a result of the registration;
set a first region of interest on the deformed medical image;
set, on at least two of the plurality of reference images, a second region of interest corresponding to the first region of interest; and
retrieve, from the reference images on which the second region of interest is set, a reference image similar to an image in the first region of interest.

Assignees

• Toshiba Medical Sys Corp

Inventors

• Zhu Qi
• Xu Qiqi
• Wang Xiaojing
• Meng Fanjie

Classifications

• G06T2207/30016

  Brain · CPC title

• G06T2207/20104

  Interactive definition of region of interest [ROI] · CPC title

• G06T7/0014 Primary

  using an image reference approach · CPC title

• G06T7/337

  involving reference images or patches · CPC title