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Abstract #4922

Contrast-enhanced and non-contrast-enhanced renal vessel imaging at 7 Tesla

Oliver Kraff 1 , Karsten Beiderwellen 1,2 , Anja Fischer 2 , Stephan Orzada 1,2 , Stefan Maderwald 1 , Mark E Ladd 1,3 , Thomas C Lauenstein 2 , and Lale Umutlu 2

1 Erwin L. Hahn Institute for MRI, University Duisburg-Essen, Essen, Germany, 2 Department of Diagnostic and Interventional Radiology and Neuroradiology, University Hospital Essen, Essen, Germany, 3 Division of Medical Physics in Radiology, German Cancer Research Center (DKFZ), Heidelberg, Germany

MRA is one of the applications that may benefit dramatically from the increase of the magnetic field strength to 7T. The aim of this study is the evaluation of the diagnostic quality of renal MRA at 7T in non-contrast-enhanced TOF versus contrast-enhanced FLASH imaging under reduction of contrast agent dosage to one-half and one-quarter of the standard dosage. 15 healthy volunteers (9f, 6m) were included in this study. The possibility to perform high-quality native and low-dose vessel imaging may be of high clinical importance for patients with renal insufficiency.

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