Douglass K H, Links J M, Chen D C, Wong D F, Wagner H N
Eur J Nucl Med. 1987;12(12):602-4. doi: 10.1007/BF00284534.
We studied the application of linear discriminant analysis to the computer assisted interpretation of rest and exercise gated blood pool studies. Data were obtained in 45 patients in whom the presence or absence of coronary artery disease was determined by coronary angiography. Automated analysis of regional ejection fractions using a linear discriminant function (LDF) was compared to the fully automated calculation of global ejection fraction and to the subjective evaluation of wall motion. A LDF constructed from the data for the first 31 consecutive patients correctly classified 25/31 (81%). The change in global ejection fraction correctly classified 24/31 (77%) and wall motion analysis 25/31 (81%). In a distinct group of 14 patients the same LDF correctly classified 12/14 (86%), global ejection fraction 9/14 (64%) and wall motion analysis 10/14 (71%).
我们研究了线性判别分析在静息和运动门控血池研究的计算机辅助解释中的应用。对45例患者进行了研究，通过冠状动脉造影确定其是否存在冠状动脉疾病。使用线性判别函数（LDF）对局部射血分数进行自动分析，并与整体射血分数的全自动计算以及壁运动的主观评估进行比较。根据前31例连续患者的数据构建的LDF正确分类了25/31（81%）。整体射血分数的变化正确分类了24/31（77%），壁运动分析正确分类了25/31（81%）。在另一组14例不同的患者中，相同的LDF正确分类了12/14（86%），整体射血分数正确分类了9/14（64%），壁运动分析正确分类了10/14（71%）。
