X-ray CT imaging method, subject center position detection method, and X-ray CT apparatus
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United States of America Patent
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Oct 15, 2002
Grant Date -
Jul 12, 2001
app pub date -
Dec 29, 2000
filing date -
Jan 7, 2000
priority date (Note) -
Expired
status (Latency Note)
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Abstract
In order to detect whether the center position of a subject is offset from a scan center and notify a human operator of the result of the detection, the subject center position is detected based on a projection profile of a parallel view at a view angle of 90.degree. (S5). If the distance between the subject center position and the scan center exceeds a predefined range (e.g., 50 cm) (S6), a warning is displayed on a CRT to prompt the operator to adjust the position of the subject and repeat imaging (S7).
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