发明名称 |
PHOTON-COUNTING DETECTOR CALIBRATION |
摘要 |
A method includes determining calibration factors for calibrating photon-counting detectors of a spectral imaging system by combining a heuristic calibration of the photon-counting detectors and an analytical calibration of the photon-counting detectors and generating a set of photon-counting calibration factors based on the combining of the a heuristic calibration and the analytical calibration. The photon-counting calibration factors, when applied to measured energy-resolved data from the photon-counting detectors of a spectral CT scan of a subject or object, mitigate spectral distortion caused by a radiation intensity profile shaper that filters a radiation beam of the spectral CT scan. |
申请公布号 |
EP2994051(A1) |
申请公布日期 |
2016.03.16 |
申请号 |
EP20140727935 |
申请日期 |
2014.05.10 |
申请人 |
KONINKLIJKE PHILIPS N.V.;PHILIPS GMBH |
发明人 |
SCHIRRA, CARSTEN OLIVER;THRAN, AXEL;DAERR, HEINER;ROESSL, EWALD |
分类号 |
A61B6/03;A61B6/00;G01T1/00 |
主分类号 |
A61B6/03 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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