Kojima K, Hiraki T, Koshida K, Maekawa R, Hisada K
Radioisotopes. 1979 Sep 15;28(9):568-71. doi: 10.3769/radioisotopes.28.9_568.
Images are very useful to obtain diagnostic informations in medical fields. Also by superimposing two or three images obtained from the same patient, various informations, for example a degree of overlapping and anatomical land mark, which can not be found in only one image, can be often found. In this paper characteristics of our trial color television system for the purpose of superimposing X-ray images and/or radionuclide images are described. This color television system, superimposing two images in each different color consists of two monochromatic vidicon cameras and 20 inches conventional color television in which only two simple video amplifier circuits are added. Signals from vidicon cameras are amplified about 40 dB and are directly applied to cathode terminals of color CRT in the television. This system is very simple and economical color displays, and enhance a degree of overlapping and displacement between images. As one of typical clinical applications, pancreas images were superimposed in color by this method. As a result, size and position of pancreas was enhanced. Also X-ray image and radionuclide image were superimposed to find exactly the position of tumors. Furthermore this system was very useful for color display of multinuclides scintigraphy.
图像在医学领域对于获取诊断信息非常有用。此外，通过叠加从同一患者获得的两三幅图像，常常可以发现一些在单幅图像中找不到的各种信息，例如重叠程度和解剖学标志。本文描述了我们用于叠加X射线图像和/或放射性核素图像的彩色电视系统的特点。这个彩色电视系统通过在每种不同颜色中叠加两幅图像，由两个单色光导摄像管摄像机和一台20英寸的传统彩色电视机组成，其中只增加了两个简单的视频放大电路。来自光导摄像管摄像机的信号被放大约40分贝，并直接施加到电视机彩色阴极射线管的阴极端子上。该系统是一种非常简单且经济的彩色显示器，可增强图像之间的重叠程度和位移。作为典型的临床应用之一，用这种方法对胰腺图像进行了彩色叠加。结果，胰腺的大小和位置更加清晰。还将X射线图像和放射性核素图像叠加以精确找到肿瘤的位置。此外，该系统对于多核素闪烁显像的彩色显示非常有用。
