发明名称 |
Methods and apparatus for time-multiplexing data acquisition |
摘要 |
A single-slice data acquisition system (DAS) for a CT imaging system is time-multiplexed to measure more than one signal over the DAS standard sampling time interval. In one embodiment, a detector element includes a scintillator and two photodiodes aligned with respective portions of the scintillator. Each photodiode generates a signal based on the scintillator output. The signal from one of the photodiodes is subjected to a time-dependent gain during consecutive sampling intervals. The gain-adjusted signal and the signal from the other photodiode are combined, and the combined signal is processed to obtain an estimate of the z-derivative of the signal. The estimated z-derivative is then used to generate a high quality image.
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申请公布号 |
US6418185(B1) |
申请公布日期 |
2002.07.09 |
申请号 |
US19990376899 |
申请日期 |
1999.08.18 |
申请人 |
GENERAL ELECTRIC COMPANY |
发明人 |
BESSON GUY M.;PFOH ARMIN H. |
分类号 |
A61B6/03;(IPC1-7):A61B6/03 |
主分类号 |
A61B6/03 |
代理机构 |
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地址 |
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