angioscopy

noun
an·​gi·​os·​co·​py | \ ˌan-jē-ˈä-skə-pē How to pronounce angioscopy (audio) \
plural angioscopies

Medical Definition of angioscopy

: examination of the interior of a blood vessel especially by means of an angioscope angioscopy can help doctors determine what kinds of materials are blocking the artery and what kind of treatment might best provide relief for heart disease patients.— William R. Wineke, The Wisconsin State Journal, 2 Nov. 1992 Recent angioscopy and autopsy studies have shown fissures in atheromata after percutaneous transluminal coronary angioplasty.American Family Physician, March 1991