抄録
To investigate the detail features of the coronary arterial lesions, we observed them using the technique of percutaneous transluminal coronary angioscopy. We studied 129 patients with ischemic heart disease during routine coronary catheterization, and 29 of them were studied before and after PTCA. In the stenotic or obstructive lesions, two types of plaque, regular plaque and complex, were noted. The latter, with various kinds of intimal injury and / or thrombus, was common with unstable angina and acute myocardial infarction. Whereas, the former, without intimal change, was common with stable angina. After PTCA, most target lesions were revealed to be associated with various degree of intimal injury and thrombus, which were rarely detected by routine coronary angiography. As regard to regular plaque, the lesions with yellow plaque were dilated more smoothly than the lesions with white plaque.
Coronary angioscopy is a useful method for investigating and comparing the coronary lesions, and will be able to play an important role as a guiding and estimating method for the other diagnostic measures or interventional therapies.
