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X-ray CT apparatus and controlling method
专利权人:
发明人:
Tooru Kato,Hiroaki Nakai,Kanta Kobuchi
申请号:
US14744082
公开号:
US09924916B2
申请日:
2015.06.19
申请国别(地区):
US
年份:
2018
代理人:
摘要:
An X-ray CT apparatus includes: intensity distribution data acquiring circuitry is configured to acquire, by performing a first scan, intensity distribution data of X-rays being radiated from an X-ray tube and having passed through a subject scan controlling circuitry is configured to estimate an X-ray dose with which it is possible to discriminate individual X-ray photons having passed through the subject based on the intensity distribution data and to cause a second scan that is for a photon counting CT purpose to be performed by causing the estimated dose of X-rays to be radiated from the X-ray tube to the subject a counting result acquiring circuitry is configured to acquire, by the second scan, a counting result by counting the X-ray photons being radiated from the X-ray tube and having passed through the subject and an image reconstructing circuitry is configured to reconstruct X-ray CT image data based on the counting result.
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