Real-time flat-panel detector-based-volume tomographic angiography imaging: detector evaluation

Ruola Ning; Richard E. Colbeth; Biao Chen; Rongfeng Yu; David L. Conover; Yi Ning; Chuck Blouir

doi:10.1117/12.384514

25 April 2000 Real-time flat-panel detector-based-volume tomographic angiography imaging: detector evaluation

Ruola Ning, Richard E. Colbeth, Biao Chen, Rongfeng Yu, David L. Conover, Yi Ning, Chuck Blouir

Proceedings Volume 3977, Medical Imaging 2000: Physics of Medical Imaging; (2000) https://doi.org/10.1117/12.384514
Event: Medical Imaging 2000, 2000, San Diego, CA, United States

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.

Citation Download Citation

Ruola Ning, Richard E. Colbeth, Biao Chen, Rongfeng Yu, David L. Conover, Yi Ning, and 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); https://doi.org/10.1117/12.384514

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