发明名称 |
X-ray CT apparatus and myocardial perfusion image generating system |
摘要 |
An X-ray CT apparatus comprises a blood-flow information acquisition unit, a correction value calculating unit and a blood-flow image generating unit. The blood-flow information acquisition unit obtains information of a relative blood flow rate in the myocardium of the subject based on the CT image. The correction value calculating unit obtains a correction value based on the CT image in a concentration transition period defined to be a period from immediately after start of a continuous injection of a contrast medium into the subject until the contrast medium reaching the myocardium increases and is be in a state where it can be considered that the contrast medium is saturated at a constant value. The blood-flow image generating unit generates a blood flow value image in the myocardium by correcting the information of the relative blood flow rate with the correction value.
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申请公布号 |
US7853309(B2) |
申请公布日期 |
2010.12.14 |
申请号 |
US20050075667 |
申请日期 |
2005.03.10 |
申请人 |
TOSHIBA MEDICAL SYSTEMS CORPORATION;THE JOHNS HOPKINS UNIVERSITY |
发明人 |
ICHIHARA TAKASHI;RIFU TOSHIHIRO;LIMA JOAO A. C.;GEORGE RICHARD T.;LARDO ALBERT C. |
分类号 |
A61B5/05 |
主分类号 |
A61B5/05 |
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