The Effect of MRI Angiography on the Degree of Carotid Artery Stenosis and Plaque Composition

doi:10.7517/issn.1674-0475.201225

Abstract

Abstract: This article explores the value of magnetic resonance (MRI) angiography in judging the degree of carotid artery stenosis and analyzing the composition of plaque in patients with carotid atherosclerosis. A total of 149 patients with carotid atherosclerosis diagnosed in our hospital were selected as the research objects. The patients received MRI angiography, three-dimensional ultrasound (3D-US), and digital subtraction angiography (DSA) within one week. The results showed that the diagnosis of carotid artery stenosis by MRI angiography was highly consistent with DSA.The plaque load parameters of 219 blood vessels were compared. There was no significant difference between the MRI detection of blood vessel wall area, maximum wall thickness, standardized wall index and 3D-US diagnosis results (P>0.05). Only the vascular cavity area was statistically different from the 3D-US results (P<0.05); MRI angiography diagnoses plaque fibrous cap, lipid nucleus, hemorrhage in the plaque, and calcification in the plaque, the coincidence rate with the pathological results is 98.08%, 96.43%, 94.74%, 97.10%, both no 615 statistical difference (P>0.05). There was no statistical difference between the results of MRI angiography in the diagnosis of plaque hardness and pathology (P>0.05). Therefore, MRI angiography has high accuracy in judging the degree of carotid artery stenosis and analyzing the composition of plaque in patients with carotid atherosclerosis, and its results have high consistency with the results of pathology, DSA and 3D-US.

Key words: magnetic resonance, carotid atherosclerosis, stenosis, plaque composition

LI Shuo, GAO Junhua, LIANG Bo, DU Xiaopeng, HUANG Shunxing, ZHANG Huan, DU Lei. The Effect of MRI Angiography on the Degree of Carotid Artery Stenosis and Plaque Composition[J]. IMAGING SCIENCE AND PHOTOCHEMISTRY, 2021, 39(4): 615-619.

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