MRI血管造影对颈动脉狭窄程度和斑块组成成分的检测效果

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

本文探讨磁共振(MRI)血管造影在颈动脉粥样硬化患者颈动脉狭窄程度判断、斑块组成成分分析方面的价值。选取我院确诊的149例颈动脉粥样硬化患者作为研究对象,患者分别于一周之内接受MRI血管造影检查、三维超声(3D-US)、数字减影血管造影(DSA)检查。结果显示,MRI血管造影诊断颈动脉狭窄程度与DSA具有极高的一致性;对219条血管的斑块负荷参数进行比较,MRI检出的血管壁面积、最大管壁厚度、标准化管壁指数与3D-US诊断结果差异无统计学意义(P>0.05),仅血管腔面积与3D-US结果存在统计学差异(P<0.05);MRI血管造影诊断斑块纤维帽、脂质核、斑块内伴有出血、斑块内钙化灶形成,其与病理学结果的符合率为98.08%、96.43%、94.74%、97.10%,二者无统计学差异(P>0.05);MRI血管造影诊断斑块软硬度的结果与病理学结果无统计学差异(P>0.05)。因此,MRI血管造影在颈动脉粥样硬化患者颈动脉狭窄程度判断、斑块组成成分分析中具有较高的准确性,其结果与病理学、DSA及3D-US结果具有较高的一致性。

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 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.