40 x 30 cm flat-panel imager for angiography, R&F, and cone-beam CT applications

Richard E. Colbeth; Sarah J. Boyce; Robert Fong; Keith W. Gray; Richard A. Harris; Isaias D. Job; Ivan P. Mollov; Boris Nepo; John M. Pavkovich; Nima Taie-Nobarie; Edward J. Seppi; Edward G. Shapiro; Michael D. Wright; Chris Webb; Jiann Michael Yu

doi:10.1117/12.430917

28 June 2001 40 x 30 cm flat-panel imager for angiography, R&F, and cone-beam CT applications

Richard E. Colbeth, Sarah J. Boyce, Robert Fong, Keith W. Gray, Richard A. Harris, Isaias D. Job, Ivan P. Mollov, Boris Nepo, John M. Pavkovich, Nima Taie-Nobarie, Edward J. Seppi, Edward G. Shapiro, Michael D. Wright, Chris Webb, Jiann Michael Yu

Author Affiliations +

Proceedings Volume 4320, Medical Imaging 2001: Physics of Medical Imaging; (2001) https://doi.org/10.1117/12.430917
Event: Medical Imaging 2001, 2001, San Diego, CA, United States

Abstract

Preliminary results are presented from the PaxScan 4030A; a 40x30cm, 2048 x 1536 landscape, flat panel imager, with 194um pixel pitch. This imager builds on our experience with the PaxScan 2520, a 127um real-time flat panel detector capable of both high-resolution radiography and low dose fluoroscopy. While the PS2520 has been applied in C-arms, neuroangiography, cardiac imaging and small area radiographic units, the larger active area of the PaxScan 4030A addresses the broader applications of angiography, general R&F and cone-beam CT. The PaxScan 4030A has the same electrical and software interfaces as the PS2520; however, a number of innovations have been incorporated into the 4030A to increase its versatility. The most obvious change is that the data interface between the receptor and command processor has been reduced to one very flexible and thin fiber-optic cable. A second new feature for the 4030A is the use of split datalines. Split datalines facilitate scanning the two halves of the array in parallel, cutting the readout time in half and increasing the time window for pulsed x-ray delivery to 15ms at 30fps. In addition, split datalines result in lower noise, which, coupled with the larger signal of the 194um pixels, enables high quality imaging at lower fluoroscopy doses rates.

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Richard E. Colbeth, Sarah J. Boyce, Robert Fong, Keith W. Gray, Richard A. Harris, Isaias D. Job, Ivan P. Mollov, Boris Nepo, John M. Pavkovich, Nima Taie-Nobarie, Edward J. Seppi, Edward G. Shapiro, Michael D. Wright, Chris Webb, and Jiann Michael Yu "40 x 30 cm flat-panel imager for angiography, R&F, and cone-beam CT applications", Proc. SPIE 4320, Medical Imaging 2001: Physics of Medical Imaging, (28 June 2001); https://doi.org/10.1117/12.430917

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