Abstract #2489

Diagnostic Performances of PETRA-MRA, TOF-MRA, and CTA in Assessing Intracranial Arterial Stenosis with DSA as a Reference Standard

Junxia Niu¹, Yuncai Ran², Yan Zhang², Yanglei Wu³, and Rui Chen²

¹Department of Magnetic Resonance, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China, ²Department of Magnetic Resonance Imaging, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China, ³Siemens Healthineers Ltd., Beijing, China

Synopsis

Keywords: Stroke, MR Value, VesselsThis study compared the performance of three noninvasive techniques, namely, 3D pointwise encoding time reduction magnetic resonance angiography (PETRA-MRA), 3D time-of-flight (TOF) MRA and computed tomography angiography (CTA) in accurately measuring the degree of stenosis and lesion length in patients with intracranial arterial stenosis using DSA as the reference standard. This study demonstrated that the estimation of intracranial stenosis and lesion length by PETRA-MRA was more accurate and comparable with DSA than TOF-MRA and CTA. Therefore, PETRA-MRA is a promising noninvasive tool for the accurate assessment of ICAS.

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