X-RAY CT APPARATUS, MYOCARDIAL PERFUSION INFORMATION GENERATING SYSTEM, X-RAY DIAGNOSTIC METHOD AND MYOCARDIAL PERFUSION INFORMATION GENERATING METHOD
First Claim
1. An X-ray CT apparatus comprising:
- an image generating unit configured to acquire projection data at rest and projection data at non-rest from a myocardial part of an object into which contrast medium is injected continuously at the rest and at the non-rest respectively in a state in which each concentration of the contrast medium can be considered to be constant and reconstruct contrast CT image data at the rest and contrast CT image data at the non-rest using the acquired projection data at the rest and the acquired projection data at the non-rest respectively; and
a blood flow information acquiring unit configured to obtain third blood flow information based in first blood flow information derived from the contrast CT image data at the rest and second blood flow information derived from the contrast CT image data at the non-rest.
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Accused Products
Abstract
An X-ray CT apparatus has an image generating unit and a blood flow information acquiring unit. The image generating unit acquires projection data at rest and at non-rest from a myocardial part of an object into which contrast medium is injected continuously in a state in which each concentration of the contrast medium can be considered to be constant and reconstructs contrast CT image data at the rest and at the non-rest using the acquired projection data. The blood flow information acquiring unit obtains third blood flow information based in first blood flow information derived from the contrast CT image data at the rest and second blood flow information derived from the contrast CT image data at the non-rest.
18 Citations
12 Claims
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1. An X-ray CT apparatus comprising:
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an image generating unit configured to acquire projection data at rest and projection data at non-rest from a myocardial part of an object into which contrast medium is injected continuously at the rest and at the non-rest respectively in a state in which each concentration of the contrast medium can be considered to be constant and reconstruct contrast CT image data at the rest and contrast CT image data at the non-rest using the acquired projection data at the rest and the acquired projection data at the non-rest respectively; and a blood flow information acquiring unit configured to obtain third blood flow information based in first blood flow information derived from the contrast CT image data at the rest and second blood flow information derived from the contrast CT image data at the non-rest. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A myocardial perfusion information generating system comprising:
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an image acquiring unit configured to acquire contrast CT image data at a rest and contrast CT image data at a non-rest of a myocardial part of an object into which contrast medium is injected continuously in a state in which each concentration of the contrast medium at the rest and at the non-rest can be considered to be constant respectively; and a blood flow information acquiring unit configured to obtain third blood flow information based in first blood flow information derived from the contrast CT image data at the rest and second blood flow information derived from the contrast CT image data at the non-rest.
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11. An X-ray diagnostic method comprising:
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acquiring projection data at rest and projection data at non-rest from a myocardial part of an object into which contrast medium is injected continuously at the rest and at the non-rest respectively in a state in which each concentration of the contrast medium can be considered to be constant and reconstructing contrast CT image data at the rest and contrast CT image data at the non-rest using the acquired projection data at the rest and the acquired projection data at the non-rest respectively; and obtaining third blood flow information based in first blood flow information derived from the contrast CT image data at the rest and second blood flow information derived from the contrast CT image data at the non-rest.
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12. A myocardial perfusion information generating method comprising:
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acquiring contrast CT image data at a rest and contrast CT image data at a non-rest of a myocardial part of an object into which contrast medium is injected continuously in a state in which each concentration of the contrast medium at the rest and at the non-rest can be considered to be constant respectively; and obtaining third blood flow information based in first blood flow information derived from the contrast CT image data at the rest and second blood flow information derived from the contrast CT image data at the non-rest.
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Specification