Cooperberg P L, Cohen M M
Can J Surg. 1977 Jul;20(4):361-5.
With the introduction of grey-scale imaging, the diagnostic capability of ultrasound has been greatly increased. Previously, ultrasound images were limited to a bistable presentation that did not distinguish between high- and low-level echoes. As a result the images could be interpreted by only a few experienced ultrasonographers. Grey-scale imaging with the use of a television scan converter allows both the strong and the weaker echoes to be displayed, so that both the outline and the internal texture of normal abdominal organs and lesions can be visualized on a single scan. Abnormalities are now more readily identified and their relation to normal organs is more easily appreciated so that the scans can be interpreted not only by the ultrasonographer but also by the clinician. Several cases are presented in which grey-scale ultrasound was used.
随着灰阶成像技术的引入，超声的诊断能力得到了极大提高。以前，超声图像仅限于双稳态显示，无法区分高回声和低回声。因此，只有少数经验丰富的超声检查人员才能解读这些图像。使用电视扫描转换器的灰阶成像能够同时显示强回声和弱回声，从而在一次扫描中就能观察到正常腹部器官和病变的轮廓及内部结构。现在，异常情况更容易被识别，并且它们与正常器官的关系也更容易理解，这样不仅超声检查人员，临床医生也能够解读扫描图像。本文展示了几例使用灰阶超声的病例。
