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本文67例左室电影造影和冠脉造影病例按冠脉造影的结果分组,采用长轴中点法和重心法将左室分别分成6、12、24、36、48个节段,利用节段功能指标(即面积和半径缩短率为反映冠脉病变的参数),通过Bayes判别分析回测分类与冠造分类的符合率,比较了每种分段方法测定结果的差异。结果表明左室节段功能测定分段数不应少于36,而在36～48个节段间较为合适。
67 cases of left ventricular angiography and coronary angiography were grouped according to the results of coronary angiography, the long axis midpoint method and the center of gravity method will be divided into 6,12,24,36,48 segments, respectively, the use of segments The functional indexes (area and radius shortening rate were the parameters reflecting the coronary lesion). The coincidence rates of backtesting classification and crown classification by Bayes discriminant analysis were compared, and the differences of the results of each method were compared. The results showed that the left ventricular segment function determination of the number of segments should not be less than 36, but in 36 to 48 segments is more appropriate.