X-ray CT apparatus and scanning method
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United States of America Patent
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Mar 26, 2019
Grant Date -
Jan 26, 2017
app pub date -
Mar 25, 2015
filing date -
Mar 31, 2014
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Abstract
In order to provide an X-ray CT apparatus and the like capable of obtaining an optimal X-ray dose for a dynamically changing X-ray irradiation region and reliably irradiating the X-ray irradiation region in a case where X-rays are applied with a spreading angle in a body axis direction, an X-ray CT apparatus 1 dynamically changes an X-ray irradiation region 201 for each view angle during scanning, and a system control device 124 changes a position of an analysis line 300 used to calculate an optimal tube current during scanning according to a position of the X-ray irradiation region 201 at each view angle, so as to obtain an optimal irradiation X-ray dose.
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