25 April 2000 Real-time flat-panel detector-based-volume tomographic angiography imaging: detector evaluation
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Abstract
The purpose of this study is to characterize a real time flat panel detector (FPD)-based imaging system for cone beam volume tomographic digital angiography (CBVTDA) applications. A prototype FPD-based imaging system has been designed and constructed on a modified GE 8800 CT scanner. This system is evaluated for CBVTDA using two phantoms. The system is first characterized in terms of linearity and dynamic range of the detector, the effect of image lag and scatter on the image quality, low contrast resolution and high contrast spatial resolution. The results indicate that the FPD-based imaging system can achieve 2lp/mm spatial resolution and provide appropriate low contrast resolution for intravenous CBVTDA angiography with clinically acceptable entrance exposure level.
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Ruola Ning, Ruola Ning, Richard E. Colbeth, Richard E. Colbeth, Biao Chen, Biao Chen, Rongfeng Yu, Rongfeng Yu, David L. Conover, David L. Conover, Yi Ning, Yi Ning, Chuck Blouir, Chuck Blouir, } "Real-time flat-panel detector-based-volume tomographic angiography imaging: detector evaluation", Proc. SPIE 3977, Medical Imaging 2000: Physics of Medical Imaging, (25 April 2000); doi: 10.1117/12.384514; https://doi.org/10.1117/12.384514
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