Non-enhanced versus contrast-enhanced MR angiography of the renal vasculature at 7T: Initial results
L Umutlu, TC Lauenstein, S Maderwald, O Kraff, S Kinner, L Schäfer, G Antoch, HH Quick · RöFo - Fortschritte auf dem Gebiet der Röntgenstrahlen und der bildgebenden Verfahren · 2010 · Heft 11
Bibliografische Angaben
Zusammenfassung
Purpose: The aim of this study was to evaluate the feasibility of non-enhanced and contrast-enhanced. MRA of the renal vasculature. Materials and Methods: In vivo contrast-enhanced MR examinations were performed in 8 healthy volunteers on a 7T whole-body MR system (Magnetom 7T, Siemens Healthcare), utilizing a custom-built 8-channel transmit/receive radiofrequency body coil for image acquisition. After RF shimming and sequence modification, the following sequences were obtained: 1) 2D FLASH (spoiled gradient-echo sequence), 2) 3D FLASH, and 3) TOF-MRA. For dynamic imaging Gadobutrol (Gadovist®, Bayer Schering Ph…