放射性核素计算机断层扫描：在心血管疾病中的应用

Murphy Paul H., Burdine John A.

Department of Radiology, Baylor College of Medicine, Houston, Texas.

Cardiovasc Dis. 1979 Sep;6(3):313-317.

Tomography is an imaging modality in which information in one plane is displayed in focus while information from overlying and underlying planes is either blurred or eliminated. As a result, there is an improvement in the contrast of structures in the plane of interest. Computerized axial tomography (CAT) is an imaging modality in which a digital computer mathematically reconstructs the image of a plane or section from data collected perpendicular to the axis of that plane. The axis of the plane and the patient's long axis usually coincide so that the reconstructed images reveal transverse sections. In recent years, two types of computed tomography in medical imaging have generated a great deal of interest. These are X-ray transmission and radio-nuclide emission computed tomography.

断层摄影术是一种成像方式，其中一个平面内的信息清晰显示，而来自上层和下层平面的信息则模糊或消除。因此，感兴趣平面内结构的对比度得到了提高。计算机轴向断层扫描（CAT）是一种成像方式，其中数字计算机根据垂直于该平面轴收集的数据，通过数学方法重建平面或截面的图像。该平面的轴与患者的长轴通常重合，以便重建的图像显示横断面。近年来，医学成像中的两种计算机断层扫描引起了极大的关注。它们是X射线透射和放射性核素发射计算机断层扫描。