Image display apparatus and program

• US 20100215225A1
• Filed: 04/25/2006
• Published: 08/26/2010
• Est. Priority Date: 04/28/2005
• Status: Active Grant

• Current Assignee: Hitachi, Ltd.
• Original Assignee: Hitachi Medical Corporation (Hitachi, Ltd.)
• Inventors: Kokubun, Hiroto, Hayashi, Hiromitsu, Miyazaki, Osamu, Kadomura, Takayuki, Goto, Yoshihiro
• Granted Patent: US 8,285,012 B2
• Time in Patent Office: Days
• US Class Current: 382/128
• CPC Class Codes: G06T 2207/30101 Blood vessel; Artery; Vein; Vascular
• CPC Class Codes: G06T 7/0012 Biomedical image inspection
• CPC Class Codes: G06T 7/62 of area, perimeter, diameter or volume

Abstract

An image display apparatus according to the invention comprises reading section (11a) which reads in an image data set of a subject acquired by a medical imaging apparatus (2) from a data recording device (13) which stores the image data set; input sections (16, 17) which input a desired object organ to the read-in image data set; object organ extracting section (11b) which extracts the inputted object organ; reference position setting section (11h) which sets a reference position for producing an unfolded image in the circumferential direction of the bore of the extracted object organ; calculating device (11e) which calculates pixel information in the circumferential direction of the bore of the object organ from the set reference position; and image display section (15) which displays the calculated pixel information in the circumferential direction of the bore of the object organ.

Claims

1. An image display apparatus comprising:

a device which reads in an image data set of a subject acquired by a medical imaging apparatus from a data recording device which stores the image data set;

an input device which inputs a desired object organ to the read-in image data set;

an object organ extracting device which extracts the inputted object organ;

a reference position setting device which sets a reference position for producing an unfolded image in the circumferential direction of the bore of the extracted object organ;

a calculating device which calculates pixel information in the circumferential direction of the bore of the object organ from the set reference position; and

an image display device which displays the calculated pixel information in the circumferential direction of the bore of the object organ.

2. The image display apparatus according to claim 1, wherein

the pixel information calculating device comprises an angle map producing device which calculates at every prescribed angle pixel information in the radial direction of the object organ from the set reference position to produce an angle map in which the calculated pixel information is related to the prescribed angle, and

the image display device displays the produced angle map as pixel information in the circumferential direction of the bore of the object organ.

3. The image display apparatus according to claim 1, wherein

at least one out of an axial image, a coronal image, a sagittal image and a three-dimensional image which are images containing the object organ is displayed on the image display device, and

the reference position setting device sets a reference position to the object organ by referencing the displayed image.

4. The image display apparatus according to claim 1, wherein

pixel information in the circumferential direction of the bore of the object organ at prescribed intervals calculated by the density information calculating device and at least one out of a multiplanar reconstruction image, a curved planar reconstruction image and a three-dimensional image containing the object organ are displayed on the image display device, and

the reference position setting device sets a reference position to the object organ by referencing the displayed image.

5. The image display apparatus according to claim 2, wherein the position of a section of a detection result matching the angle map set by the angle map setting device is displayed being matched with an angle map table displayed on the image display device.

6. The image display apparatus according to claim 2, wherein

a manipulation bar for moving position of a section matching the angle map set by the angle map setting device is provided, and

at least one out of a multiplanar reconstruction image, a curved planar reconstruction image and a three-dimensional image containing the object organ interlocked with the manipulation bars is displayed on the image display device.

7. The image display apparatus according to claim 3, wherein the angle map producing device produces a polar coordinate map in which the calculated pixel information is related to the prescribed angle.

8. The image display apparatus according to claim 7, wherein the angle map producing device produces the polar coordinate map and produces the main trunk branch map and split branch maps of the object organ over the produced polar coordinate map.

9. The image display apparatus according to claim 7, further comprising a notable pixel value setting device which sets a notable pixel value of the object organ, wherein

the angle map producing device produces the polar coordinate map,

the notable pixel value setting device sets a notable pixel value of the object organ on the produced polar coordinate map, and

the image display device displays the set notable pixel value over the polar coordinate map.

10. The image display apparatus according to claim 2, wherein

the angle map produced by the angle map producing device and at least one out of a multiplanar reconstruction image, a curved planar reconstruction image and a three-dimensional image containing the object organ are displayed on the image display device, and

at least one out of the length, angle and imaging condition of the relevant region of the object image is displayed over the displayed angle map.

11. The image display apparatus according to claim 2, wherein the angle map producing device displays in parallel a curved planar reconstruction image figured out from the calculated pixel information and an angle map.

12. The image display apparatus according to claim 2, wherein the angle map producing device produces an unfolded map in which the calculated pixel information is related to with the prescribed angle.

13. The image display apparatus according to claim 2, further comprising a center line setting device which sets a center line of the object organ, wherein

the angle map produced by the angle map producing device and a curved planar reconstruction image containing the object organ are displayed on the image display device, and

the center line setting device which sets the center line in any radial direction of the object organ by referencing the displayed image.

14. An image display program causing a computer to execute:

a step of reading in an image data set of a subject acquired by a medical imaging apparatus from a data recording device which stores the data set;

an input step of inputting a desired object organ to the read-in image data set;

an object organ extracting step of extracting the inputted object organ;

a reference position setting step of setting a reference position for producing an unfolded image in the circumferential direction of the bore of the extracted object organ; and

an image displaying step of displaying the calculated pixel information in the circumferential direction of the bore of the object organ.