Evaluated Value of CE-MRA Combined with HRMR-VWI on Stability of Unruptured Intracranial Aneurysms
Objective Toexplore the evaluated value of contrast-enhanced magnetic resonance angiography(CE-MRA)combined with high-resolution magnetic resonance vessel wall imaging(HRMR-VWI)on the stability of unruptured intracranial aneurysms(UIA).Methods 60 patients with unruptured UIA(68 lesions in total)in our hospital were selected as the study subjects.Patients with PHASES score＞3 points were included in high-risk rupture group(n=31),and patients with PHASES score≤3 points were enrolled as low-risk rupture group(n=37).The general data and imaging features were compared between low-risk rupture group and high-risk rupture group,to analyze the related factors of UIA rupture and the correlation between imaging parameters and PHASES score in UIA patients.Results The age,hypertension,hyperlipidemia,ELAPSS score,tumor diameter≥5 mm,multiple lesions,irregular shape,containing ascus,body-neck ratio＞1.6,tumor body rate＞1.6,and aneurysm wall enhancement in high-risk rupture group were significantly higher than those in low-risk rupture group(P＜0.05).Multivariate Logistic regression analysis showed that multiple lesions,irregular shape,ascus,body-neck ratio,aneurysm wall enhancement,and ELAPSS score were risk factors for UIA rupture(P＜0.05).Spearman correlation coefficient analysis showed that multiple lesions,irregular shape,ascus,body-neck ratio and aneurysm wall enhancement were significantly positively correlated with PHASES score(P＜0.05).Conclusion The imaging features of CE-MRA and HRMR-VWI in UIA patients are obviously characteristic.Multiple lesions,irregular shape,ascus,body-neck ratio,and aneurysm wall enhancement are significantly correlated with UIA rupture risk score.
AneurysmContrast-enhanced Magnetic Resonance AngiographyHigh-resolution Magnetic Resonance Vascular Wall ImagingRupture Risk
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