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

作者：Yan, Ruifang; Zhang, Bo; Wang, Long; Li, Qiang; Zhou, Fengmei; Ren, Jipeng; Zhai, Zhansheng; Li, Zheng; Cui, Hongkai^*

来源：Clinical Imaging, 2018, 49: 131-135.

DOI：10.1016/j.clinimag.2017.10.012

• Magnetic resonance angiography
• Intracranial aneurysm
• Subarachnoid hemorrhage (SAH)
• Digital subtraction angiography
• Rotational digital subtraction angiography
• Volume rendering

Purpose: To determine the diagnostic accuracy of contrast-free MRA at 3.0 T for detection of intracranial aneurysms in patients with subarachnoid hemorrhage. @@@ Methods: 411 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. @@@ Results: Except 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. @@@ Conclusion: VR 3D-TOF-MRA is a non-invasive approach with high accuracy in the diagnosis of intracranial aneurysms.

• 出版日期2018-5
• 单位新乡医学院