A 43-year-old member asked:
my doctor told me i have 70% right coronary artery blockage. how did he measure the percentage of blockage?
1 doctor answer
Dr. Francis Uricchio answered
37 years experience Cardiology
Comparison: The diameter of the narrowest part of the artery is compared to a nearby segment which is felt to be healthy. This is assuming that there is a nearby part that is healthy. In a diffusely diseased artery, it may not be possible to assign a percent stenosis.
Answered on Jul 20, 2012
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