EVALUATION OF THE EXPERT 12-LEAD ECG ANALYSIS SYSTEM

摘要

Computer programs for the electrocardiograms (ECGs) interpretation are widely used and accepted and over 80 percent of the ECGs recorded annually in Japan are interpreted with use of the computer system. As diagnostic accuracy is the most important issue, version-up of the computer program is essential all the time. In order to evaluate the diagnostic accuracy of the recent version of computerized program, objective evidence-based ECGs data are analyzed. Common ECGs data in major cardiac diseases consist of three groups as follows. 1. Serial ECGs of the 115 myocardial infarctions (MI) proved by percutaneous coronary intervention (PCI) in the university hospital. 2.63 ECGs of the left ventricular hypertrophy (LVH), clinically validated by ultrasonic echo-cardiography (UCG) examination and cardiologists. 3.Random selected 1000 ECGs of the university hospital documented by six cardiologists. In all ECGs, the computer interpretations were compared with those of six cardiologists.In the 115 PCI group, the diagnostic sensitivity of anterior (lateral) MI ECGs was 88.7%, and inferior (posterior) MI was 81.8%. Out of 63 LVH ECGs 57 were correctly classified by the computer program. In the 1000 ECGs group, computer correct classification was as follows; Normal 99.0%, MI average 93.2%, LVH 91.8% and so on. The diagnostic performance of the present expert 12-lead ECG analysis program was well evaluated.