Feczko P J, Ackerman L V, Kastan D J, Halpert R D
Department of Diagnostic Radiology, Henry Ford Hospital, Detroit, Michigan 48202.
Gastrointest Radiol. 1988 Jul;13(3):191-6. doi: 10.1007/BF01889057.
The gastrointestinal tract lends itself quite well to digital imaging. Since fluoroscopy is already employed, the images can easily be obtained in digital format and several manufacturers have now developed systems for commercial use. Because of the type of pathology as well as the inherent subject contrast, it would appear the resolution requirements for digital imaging of the gastrointestinal tract are less than in other organ systems. The necessary resolution level is already technically available and feasible without significant cost. Digital imaging also holds promise of at least a modest reduction in radiation dose to the patient, as well as a reduction in costs, although these factors are operator dependent. However, digital imaging provides a latitude in performing the examination that is not available with screen-film systems. Finally, there is promise that by acquiring gastrointestinal images in digital format, manipulation of the images may help increase diagnostic accuracy by improving both technical and perceptive components of diagnosis. Not only will simple image manipulation be helpful but there is even potential for computer-assisted evaluation of gastrointestinal images.
胃肠道非常适合数字成像。由于已经采用了荧光透视法，图像可以很容易地以数字格式获取，并且现在有几家制造商已经开发出了用于商业用途的系统。由于病理学类型以及固有的主体对比度，看起来胃肠道数字成像的分辨率要求低于其他器官系统。必要的分辨率水平在技术上已经可以实现且可行，成本也不高。数字成像还有望至少适度降低患者的辐射剂量，并降低成本，尽管这些因素取决于操作人员。然而，数字成像在进行检查时提供了屏-片系统所没有的宽容度。最后，有希望通过以数字格式获取胃肠道图像，图像的处理可能有助于通过改善诊断的技术和感知成分来提高诊断准确性。不仅简单的图像处理会有帮助，甚至还有计算机辅助评估胃肠道图像的潜力。
