A comparison of contrast-free MRA at 3.0T in cases of intracranial aneurysms with or without subarachnoid hemorrhage

Publication date: May–June 2018
Source:Clinical Imaging, Volume 49
Author(s): Ruifang Yan, Bo Zhang, Long Wang, Qiang Li, Fengmei Zhou, Jipeng Ren, Zhansheng Zhai, Zheng Li, Hongkai Cui
PurposeTo determine the diagnostic accuracy of contrast-free MRA at 3.0T for detection of intracranial aneurysms in patients with subarachnoid hemorrhage.Methods411 patients (183 with SAH and 228 with non-SAH) underwent MRA. Accuracy, sensitivity, specificity, positive predictive values (PPV), and negative predictive values (NPV) were measured and compared with DSA.ResultsExcept for a slight difference in sensitivity in patient-based and aneurysm-based evaluations (P=0.037), there were no other significant differences in accuracy, specificity, PPV, and NPV.ConclusionVR 3D-TOF-MRA is a non-invasive approach with high accuracy in the diagnosis of intracranial aneurysms.



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