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CE-MRA与磁共振管壁成像联合应用对颅内动脉瘤的诊断价值 被引量:14

Value of CE-MRA with MR-VWI in Diagnosis of Intracranial Aneurysms
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摘要 目的探讨对比剂增强MRA与MR管壁成像技术联合应用在颅内动脉瘤诊断中的优越性。方法回顾性分析2014年7月至2015年6月行3.0T HR-MRI多序列动脉瘤管壁成像的患者50例,共65例动脉瘤,其中21例颅内动脉瘤患者于检查前后行DSA检查,与DSA做比较,评估CE-MRA与MR-VWI对动脉瘤管腔形态学测量精准度;再对动脉瘤增强前后进行诊断分析,观察瘤壁情况以评估动脉瘤的不稳定性。结果 (1)21例行DSA检查的动脉瘤最大径均值为(12.35mm±8.57mm),CE-MRA和MRVWI在颅内动脉瘤最大径测量上的结果与在DSA上测量的结果无统计学意义,P值分别为(0.181、0.118)。(2)65动脉瘤瘤体平均最大径为(6.9mm±6.1mm),动脉瘤管壁增厚及瘤壁增强率为41.54(27/65),瘤壁强化情况与瘤体大小差异有统计学意义(P=0.001)。且随着瘤体的增大,瘤壁强化率呈增高趋势。结论 CE-MRA与MR-VWI成像技术的联合应用不仅可以精准显示动脉瘤管腔的形态学结构,也可以较传统的MRA提供更多的瘤壁信息-如瘤壁的增厚强化、附壁血栓等,对颅内动脉瘤管壁的不稳定性判断具有重要意义。 Objective To analyze the value of CE-MRA with HRMR-VWI in the diagnosis of intracranial aneurysms. Methods Fifty patients with sixty-five intracranial aneurysms underwent 3.0T HR-MRI vessel wall imaging from July 2014 to June 2015, 21 patients underwent DSA examination, Using DSA as a comparison, The accuracy of CE-MRA and MR-VWI on the measurement of aneurysm morphology, was evaluated, and the enhancement of aneurysm vessel wall was analyzed, To assess the stability of the anenrysm.Results (1) Using DSA as a comparison, the mean value of aneurysm diameters on CE-MRA and MR-VWI(12.35 ± 8.57)mm showed no statistical difference respectively(P〈0.05): (2) The mean value of long diameters of 65 arterial aneurysm were (6.9± 6.1)mm.Thirty-one of 64 aneurysms showed a thick and enhanced wall. There was significant statistical difference between aneurysm size and wall enhancement (P=0.001),With the increase of the long diameter, the enhancement rate of aneurysm wall were increased. Conclusion The combination of CE-MRA, MR-VWI can not only show the morphological characteristics of the aneurysm, but can also show more information than MRA-such as the MR-VMI aneurysm wall enhancement and mural thrombosis, Such as tumor wall thickening enhancement, mural thrombus, etc. Which may evaluate the rupture risk of intracranial aneurysms.
出处 《中国CT和MRI杂志》 2017年第4期21-23,共3页 Chinese Journal of CT and MRI
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