一种用于减少患者辐射暴露的可变孔径荧光透视设备。

A variable aperture fluoroscopic unit for reduced patient exposure.

作者信息

Rossi R P, Wesenberg R L, Hendee W R

出版信息

Radiology. 1978 Dec;129(3):799-802. doi: 10.1148/129.3.799.

DOI:10.1148/129.3.799

Abstract

A real time fluoroscopic imaging system which provides capability for reduced patient exposure by as much as a factor of five has been developed. Modifications to the system include the incorporation of a variable aperture iris between the image intensifier output phosphor and television camera and the use of the video signal as the feedback element in the fluoroscopic automatic exposure rate control system. Quantitative and qualitative performance of the system is described.

摘要

已经开发出一种实时荧光成像系统，该系统能够将患者的辐射暴露减少多达五倍。对该系统的改进包括在图像增强器输出荧光屏和电视摄像机之间安装一个可变孔径光阑，以及在荧光自动曝光率控制系统中使用视频信号作为反馈元件。文中描述了该系统的定量和定性性能。