Daily x-ray rounds in a large teaching hospital using high-resolution closed-circuit television.
Daily x-ray rounds in a large teaching hospital using high-resolution closed-circuit television.
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大型教学医院使用高分辨率闭路电视进行每日 X 光检查。
作者：
R. Steckel
具有光学变焦功能的高分辨率 875 线相机能够将原始胶片放大 0.8–8.0 倍，已用于将每日 X 射线咨询投射到距离最远 305 m（1,000 英尺）的卫星上的临床医生。操作放射科医生可以控制细节强调、边缘和伽玛增强、图像极性反转以及亮度和对比度。每颗卫星都有缩放和扫描控件。发射机和卫星之间的音频通信通过扬声器电话维持。尽管该系统无法同时呈现单项研究的连续和/或多部影片，但其出色的图像质量、小组教学能力和节省时间远远弥补了这一缺点。
A high-resolution, 875-line camera with optical zooming capable of magnifying original films 0.8–8.0× has been used to project daily x-ray consultation rounds to clinicians at satellites as far away as 305 m (1,000 feet). The operating radiologist can control detail emphasis, edge and gamma enhancement, image polarity reversal, and brightness and contrast. Each satellite has zoom and scan controls. Audio communication between transmitter and satellites is maintained by speaker telephone. Although the system cannot present serial and/or multiple films from a single study simultaneously, its excellent image quality, group-teaching capability, and time saving far outweigh this disadvantage.