Meeting Banner
Abstract #3867

Initial evaluation of non-contrast-enhanced MRA in patients with peripheral arterial occlusive disease at 7 T

Anja Fischer 1,2 , Stefan Maderwald 1,2 , Sren Johst 1,2 , Stephan Orzada 1,2 , Mark E. Ladd 2,3 , Lale Umutlu 1,2 , Thomas C. Lauenstein 1 , Horst-Wilhelm Kniemeyer 4 , and Kai Nassenstein 1

1 Department of Diagnostic and Interventional Radiology and Neuroradiology, University Hospital Essen, Essen, Germany, 2 Erwin L. Hahn Institute for Magnetic Resonance Imaging, University Duisburg-Essen, Essen, Germany, 3 Medical Physics in Radiology, German Cancer Research Center, Heidelberg, Germany, 4 Clinic for Vascular Surgery, Elisabeth Hospital Essen, Essen, Germany

The purpose of this study was to achieve initial experience with non-contrast-enhanced MRA at 7 T in patients with PAOD. T1w Turbo-FLASH imaging was performed on a 7 T whole-body scanner utilizing a 16-channel transmit/receive coil and an AngioSURF table in addition to contrast-based MRA at 1.5 T. The number of stenoses and occlusions was counted for each arterial segment in both MRA techniques. Arterial anatomy was accurately demonstrated at 7 T both proximal and distal to stenotic disease. The sensitivity and specificity values of 7 T ne-MRA for detecting segments with hemodynamically significant stenosis were 93% and 98%, respectively.

This abstract and the presentation materials are available to members only; a login is required.

Join Here