Parallel RF transmission for clinical MR imaging of the spinal cord at 3.0 Tesla
M Nelles, R König, J Gieseke, M Guerand-van Battum, M Nijenhuis, G Kukuk, D Thomas, M Andersson, B Koberstein, HH Schild, WA Willinek · RöFo - Fortschritte auf dem Gebiet der Röntgenstrahlen und der bildgebenden Verfahren · 2010 · Heft 11
Bibliografische Angaben
Zusammenfassung
Purpose: To prospectively and intraindividually compare single-source radiofrequency (RF) excitation and dual-source parallel RF excitation in 3.0-T magnetic resonance (MR) imaging of the spine. Materials and Methods: Institutional review board approval and written informed patient consent were obtained. The RF power of a 3.0-T MR imaging system was distributed to two ports of the body coil of the system by using independent RF transmit channels. The maximum B1 field strength for dual-source parallel RF excitation was maintained, as compared with single-source RF excitation. The repetition time was reduced accor…
