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A total low dose fluoroscopy system has been developed,using a Siemens Videomed H 1023 line 25MHz television system, and a modified Matrix Videoimager, multi-image camera for recording spot films. The radiation dose during fluoroscopy has been reduced by using pulses of radiation at fluoroscopic intensities approximately 17ms. wide, storing the image on a V.A.S. video disc recorder during the pulse, and playing the stored image back through the fluoroscopic monitor. The combination of these methods has resulted in dose and cost reductions of the order of 90%, with clinically acceptable image quality. With minor modification the system could be made compatible with any commercially available high line rate, high resolution television system.© (1980) COPYRIGHT SPIE--The International Society for Optical Engineering. Downloading of the abstract is permitted for personal use only. |
