X-ray CT apparatus and myocardial perfusion image generating system

A CT image and X-ray technology, which is applied in the field of X-ray CT equipment and myocardial perfusion image generation systems, can solve the problems of difficulty in ensuring long imaging time of myocardial perfusion images, and limited imaging time and frequency.
CN1706344AActive Publication Date: 2005-12-14TOSHIBA MEDICAL SYST CORP
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Patent Information

Authority / Receiving Office
CN ยท China
Current Assignee / Owner
TOSHIBA MEDICAL SYST CORP
Publication Date
2005-12-14

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Abstract

The present invention discloses an X-ray CT apparatus (1) for radiating X-rays to a subject (P) for scanning the subject (P) and reconstructing an image inside the subject (P) based on the obtained projection data, It includes an image generation unit and a blood flow image generation unit (24e). The image generating unit generates an image based on the projection data in a state where the concentration of the contrast agent in the myocardial portion of the subject (P) to which the contrast agent is continuously injected can be considered constant. A blood flow image generating unit (24e) generates a blood flow image by removing components of myocardial tissue from a portion of a myocardial region of an image generated by the image generating unit.
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Description

[0001] Cross References to Related Applications

[0002] This application is related to and incorporated by reference in Japanese Patent Application No. 2004-174364 filed on June 11, 2004 and Japanese Patent Application No. 2005-005977 filed on January 13, 2005. technical field

[0003] The present invention relates to an X-ray CT (computed tomography) device and a myocardial perfusion image generation system, which obtain contrast CT images, such as coronary angiography CT images, myocardial contrast CT images, etc., by continuously injecting contrast agents, and Myocardial perfusion images were generated using the obtained contrast CT images. Background technique

[0004] Regarding myocardial contrast examination using an X-ray CT apparatus, a contrast medium is injected into a subject as a patient, and a contrast CT image is collected. Subsequently, live images of the coronary arteries, endocardial luminal walls, etc. are generated from the collected contrast CT images a...

Claims

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