Intravascular ultrasonography, a more sensitive technique, detects intimal thickening in up to 58% of patients at 1 year posttransplant and detects CAV in 75% of patients at 3 years.

• 经血管内超声(Intravascular ultrasonography，IVUS)显示，心脏移植1年后，58%25的病人出现血管内膜增生，移植3年后，75%25的病人可发现有CAV。