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Digital angiographic assessment of the physiological changes to the regional microcirculation induced by successful coronary angioplasty
after PTCA (P<.01). A comparison of T.i",' with stenosis flow reserve revealed a nonlinear relation. In 16 patients undergoing PTCA of the left anterior descending or circumflex artery, contrast injections into the left main stem allowed simultaneous measurements of Tmiij"in the adjacent, nonstenotic artery. Adjacent artery Ti",'j did not change after PTCA (25.8+6.2 compared with 25.6+6.8 min' before PTCA; P=NS); moreover, Ti"jcr'of the dilated artery measured after PTCA was equivalent to thedoi:10.1161/01.cir.90.1.163 pmid:8025992 fatcat:eau3traswfhwjeefrwkmg7g6vi