AN ANALOG LASER OPTICAL DISC IN COMPARISON WITH CINEFILM FOR VISUAL ANALYSIS OF CORONARY NARROWINGS BEFORE AND AFTER CORONARY ANGIOPLASTY

This study evaluated an analogue laser optical disc (MVP) as an altern ative for cinefilm angiography in the visual analysis of coronary angi ograms. Visual analysis was performed independently by 5 observers usi ng cinefilm and MVP before and after PTCA (194 coronary lesions in 88 patients) and the outcomes were compared with QCA. The mean percentage diameter stenosis on cinefilm and MVP yielded similar results compare d to QCA. Regression analysis showed a good correlation between the me an cinefilm and MVP values per diameter stenosis (p < 0.001). Bland-Al tman plots confirmed these findings. Qualitative analysis for detectio n of coronary dissections after PTCA showed an incidence of 31.3% (cin efilm) and 21.8% (MVP) (p < 0.05). The results of this study indicate that the visual analysis of the coronary angiograms using the analogue laser optical disc (MVP) yields similar results compared to the cinef ilm concerning coronary lesion severity, although there is an underest imation of coronary dissections.