Wagner H N
Johns Hopkins Med J. 1977 Sep;141(3):177-81.
In the diagnostic process the first goal of the clinician is to obtain as clear a view as possible of the patient and the associated problems. The second is to conceptualize the patient's problems as disease categories, thereby making the diagnosis. Today we can perceive our patients and their problems in ways that physicians of the past never dreamed of. Major advances are being made with three noninvasive imaging techniques: nuclear medicine, computerized axial tomography and ultrasonics. Motion and change are the essence of the physiological approach to medical diagnosis, and medical images should be viewed as symbolic representations of the patterns and changes in the spatial and temporal distribution of the physical and chemical substances that make up our bodies.
在诊断过程中，临床医生的首要目标是尽可能清晰地了解患者及其相关问题。其次是将患者的问题归纳为疾病类别，从而做出诊断。如今，我们能够以过去的医生做梦都想不到的方式来了解我们的患者及其问题。核医学、计算机断层扫描和超声这三种非侵入性成像技术正在取得重大进展。运动和变化是医学诊断生理学方法的核心，医学图像应被视为构成我们身体的物理和化学物质在空间和时间分布上的模式和变化的象征性表示。
