Smalling R, Cole J S, Skolnick M H
Cathet Cardiovasc Diagn. 1979;5(4):331-46. doi: 10.1002/ccd.1810050405.
A technique has been developed to analyze automatically 35 mm left ventricular cine angiograms with an image dissector and digital computer. The analysis procedure detected the ventricular boundary and aortic valve position, then calculated the projected left ventricular area and estimated volume, and performed a polar wall motion analysis as a function of time. The automated method was compared to a semi-automated method using a technician-operated electronic cursor linked to a mini-computer. The two methods were used to analyze a set of idealized ventricular models as well as normal and abnormal angiographic data. The volumetric and wall motion data for the idealized models calculated by the two methods were equivalent (r greater than 0.99). Volumetric analysis of the patients' ventriculograms produced correlation coefficients of 0.88-0.99. Corresponding wall motion data produced correlation coefficients of 0.72-0.94. The time necessary to analyze 30 frames of cine ventriculogram was approximately 30 minutes for each method.
已开发出一种利用图像分析器和数字计算机自动分析35毫米左心室电影血管造影的技术。分析程序可检测心室边界和主动脉瓣位置，然后计算左心室投影面积和估计容积，并作为时间函数进行极坐标壁运动分析。将该自动化方法与使用连接到小型计算机的技术人员操作的电子光标进行的半自动方法进行了比较。这两种方法用于分析一组理想化心室模型以及正常和异常血管造影数据。两种方法计算出的理想化模型的容积和壁运动数据相当（r大于0.99）。对患者心室造影的容积分析产生的相关系数为0.88 - 0.99。相应的壁运动数据产生的相关系数为0.72 - 0.94。每种方法分析30帧心室电影造影所需的时间约为30分钟。
