(54) X-RAY COMPUTED TOMOGRAPHIC
APPARATUS AND IMAGE PROCESSING
(75) Inventor: Go Mukumoto, Otawara (JP)
(73) Assignees: Kabushiki Kaisha Toshiba, Tokyo (JP);
Toshiba Medical Systems Corporation,
( * ) Notice: Subject to any disclaimer, the term of this patent is extended or adjusted under 35 U.S.C. 154(b) by 60 days.
(21) Appl.No.: 11/057,234
(22) Filed: Feb. 15, 2005
(65) Prior Publication Data
US 2005/0180540 Al Aug. 18, 2005
(30) Foreign Application Priority Data
Feb. 16,2004 (JP) 2004-037577
(51) Int. CI.
A61B 6/00 (2006.01)
(52) U.S. CI 378/4
(58) Field of Classification Search 378/4 20,
See application file for complete search history.
(56) References Cited
U.S. PATENT DOCUMENTS
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An X-ray computed tomographic apparatus comprises a scanner to scan in a three-dimensional region of a subject by X-rays, a storing unit to store projection data acquired by the scanning, a reconstruction processing unit to generate volume data which corresponds to a three-dimensional region, based on the stored projection data, an MPR processing unit to generate slice image data relating to three-direction slice planes from the volume data, a displaying unit to display the slice image data together with a graphic element representing a reconstruction range, an operating unit to operate the graphic element, and a reconstruction processing unit to reconstruct tomographic image data which corresponds to the reconstruction range represented by the graphic element, based on the stored projection data.
22 Claims, 8 Drawing Sheets