Medical image processing apparatus and X-ray computed tomography apparatus

• US 8,798,227 B2
• Filed: 12/13/2011
• Issued: 08/05/2014
• Est. Priority Date: 10/15/2010
• Status: Active Grant

• Current Assignee: Toshiba Medical Systems Corporation (Canon Inc.)
• Original Assignee: Toshiba Medical Systems Corporation (Canon Inc.), Kabushiki Kaisha Toshiba (Toshiba Corporation)
• Inventors: Tsukagoshi, Shinsuke, Arakita, Kazumasa
• Primary Examiner(s): THOMAS, COURTNEY D
• Application Number:
  US13/323,866
• Publication Number:
  US 20120093278A1
• Time in Patent Office: 966 Days
• Field of Search: 378/4
• US Class Current: 378/4
• CPC Class Codes: A61B 5/055 involving electronic [EMR] or nuclear [NMR] magnetic resonance, e.g. magnetic resonance imaging
• CPC Class Codes: A61B 6/032 Transmission computed tomography [CT]
• CPC Class Codes: A61B 6/5223 generating planar views from image data, e.g. extracting a coronal view from a 3D image
• CPC Class Codes: A61B 6/527 using data from a motion artifact sensor
• CPC Class Codes: A61B 6/5288 involving retrospective matching to a physiological signal
• CPC Class Codes: A61B 8/14 Echo-tomography
• CPC Class Codes: A61B 8/5276 due to motion
• CPC Class Codes: A61B 8/5284 involving retrospective matching to a physiological signal
• CPC Class Codes: G06T 11/008 Specific post-processing after tomographic reconstruction, e.g. voxelisation, metal artifact correction
• CPC Class Codes: G06T 2211/412 Dynamic
• CPC Class Codes: G09G 2380/08 Biomedical applications

Abstract

According to one embodiment, it is an subject to reduce the occasion that a region of interest falls outside an image due to the influence of respiratory motion or pulsation. A medical image processing apparatus causes an slice image generation unit to generate a series of slice images from a series of volume data files associated with a three-dimensional region of an subject, and causes a slice position determination unit to determine each of a plurality of slices respectively corresponding to the slice images based on the position of a specific region included in the plurality of volume data files.

Claims

1. A medical image processing apparatus, comprising:

a storage unit configured to store a plurality of volume data files associated with a three-dimensional region of an subject;

an image generation unit configured to generate, based on designation of a first slice, a first slice image from a first volume data file of the plurality of volume data files; and

a slice determination unit configured to automatically determine, based on designation of a first point on the region in the first slice image, corresponding slices in each volume data corresponding to the plurality of volume data files other than the first volume data file,

wherein the slice determination unit is configured to determine, as each slice, a plane including a barycenter of a region of interest extracted from the corresponding volume data file.

2. The medical image processing apparatus of claim 1, wherein the slice determination unit is configured to determine the slices based on corresponding regions of interest extracted from the plurality of volume data files other than the first volume data file.

3. The medical image processing apparatus of claim 1, wherein the determined slices are perpendicular to a reference axis.

4. The medical image processing apparatus of claim 1, wherein the slices are set obliquely with respect to a reference axis.

5. The medical image processing apparatus of claim 1, wherein the first slice is manually set for the first volume data file.

6. The medical image processing apparatus of claim 1, further comprising:

a data storage unit configured to store data repeatedly acquired in a first period with respect to a three-dimensional region of the subject as a target; and

a volume data generation unit configured to generate the plurality of volume data files in a second period shorter than the first period based on the acquired data.

7. The medical image processing apparatus of claim 1, further comprising a display configured to alternately reproduce and display a plurality of slice images as a moving image in a forward direction and a reverse direction.

8. The medical image processing apparatus of claim 7, wherein a display position of each slice image of the plurality of slice images is controlled to fix a position of a region of interest designed by an operator in each of the plurality of displayed slice images to a same position on a display screen.

9. The medical image processing apparatus of claim 1, wherein the image generation unit is further configured to generate slice images corresponding to the determined slices, based on the plurality of volume data files other than the first volume data file.

10. An X-ray computed tomography apparatus, comprising:

an acquisition unit configured to repeatedly acquire projection data associated with a three-dimensional region of an subject;

a reconstruction unit configured to reconstruct a plurality of volume data files from the projection data;

an image generation unit configured to generate, based on designation of a first slice, a first slice image from a first volume data file of the plurality of reconstructed volume data files; and

a slice determination unit configured to automatically determine, based on designation of a first point on the region in the first slice image, corresponding slices in each volume data corresponding to the plurality of volume data files other than the first volume data file,

wherein the slice determination unit is configured to determine, as each slice, a plane including a barycenter of a region of interest extracted from the corresponding volume data file.