发明名称 |
Method And System Of Adaptive Control For Reducing Motion Artifacts And Patient Dose In Four Dimensional Computed Tomography |
摘要 |
Motion artifacts and patient dose during 4D CT imaging are reduced by adaptive control of data acquisition. The respiration signal ( 310 ) and CT data acquisition ( 340 ) are linked, such that 'bad' data from erratic breathing cycles that cause artifacts is not acquired by pausing CT data acquisition ( 360 ) when erratic breathing is detected, and not resuming CT data acquisition until steady-state respiration is resumed. Training data is used to develop a tolerance envelope for a respiratory signal such that for erratic breathing cycles the respiratory signal is not within the tolerance envelope ( 330 ).
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申请公布号 |
US2007286331(A1) |
申请公布日期 |
2007.12.13 |
申请号 |
US20050599084 |
申请日期 |
2005.04.07 |
申请人 |
KEALL PAUL J;WILLIAMSON JEFFREY F |
发明人 |
KEALL PAUL J.;WILLIAMSON JEFFREY F. |
分类号 |
A61B6/03;A61B5/08;A61B6/00 |
主分类号 |
A61B6/03 |
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