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Patency and flow velocity profiles in the internal carotid artery assessed by digital subtraction angiography and Doppler studies two years after endarterectomy
Author(s) -
Russel D.,
Bakke S. J.,
Wiberg J.,
NybergHansen R.
Publication year - 1990
Publication title -
acta neurologica scandinavica
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.967
H-Index - 95
eISSN - 1600-0404
pISSN - 0001-6314
DOI - 10.1111/j.1600-0404.1990.tb00964.x
Subject(s) - medicine , digital subtraction angiography , carotid endarterectomy , internal carotid artery , radiology , stenosis , angiography , restenosis , endarterectomy , doppler effect , occlusion , myocardial infarction , cardiology , stent , physics , astronomy
A follow‐up of 55 patients 2 years after a total of 60 carotid endarterec‐tomies. Fifty‐two patients who had a total of 57 endarterectomies survived the first 2 post‐operative years and were re‐examined using pulsed Doppler spectral analysis and intravenous digital subtraction angiography (IVDSA). One patient had died following a stroke and 2 after a cardiac infarction. The Doppler and IVDSA examinations revealed a non‐symptomatic re‐stenosis of the relevant internal carotid artery in 2 patients. There were no relevant occlusions and no symptomatic re‐stenoses were detected. Spectral spreading of the Doppler signal at the site of the endarterectomy was found in 18% of the internal carotid arteries, whereas wall irregularities (diameter reduction less than 10%) were demonstrated in 25% by IVDSA. A stenosis or occlusion was found in 14 (25%) of the 57 ipsilateral external carotid arteries.