Head and Neck Imaging

Value of CE-MRA with MR-VWI in Diagnosis of Intracranial Aneurysms

Author:YIN Wei, WANG Xin-rui, CHEN Lu-guang,et al.

affiliation:Department of Radiology, Changhai Hospital, Shanghai 200433, China

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Abstract

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 aneurysm. 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.

【Keyword】Intracranial Aneurysms; HRMR-VMI; MRA; DSA

【Chart number】R543.1+6

【Document Identification Number】A

【DOI】 10.3969/j.issn.1672- 5131.2017.04.007