MRA and perfusion measurements of the kidney at 1.5 and 3.0T
HJ Michaely, H Kramer, S Weckbach, KP Lodemann, MF Reiser, SO Schoenberg · RöFo - Fortschritte auf dem Gebiet der Röntgenstrahlen und der bildgebenden Verfahren · 2007 · Heft 03
Bibliografische Angaben
Zusammenfassung
Purpose: To compare renal MRA and perfusion measurements at 1.5T and 3.0T intraindividually. Methods: 15 healthy volunteers (15 men, 26–36 years) underwent two abdominal MR exams with renal perfusion measurements and renal MRA: one exam at 1.5T (Avanto, Siemens) and one on a 3.0T (Tim Trio, Siemens). The MRA (spatial resolution 1.5T: 1.0×0.8×1.0mm3, 3.0T: 0.9×0.8×0.9mm3) was acquired using parallel imaging factor 3 after the administration of Gd-BOPTA (Multihance, Bracco) For the perfusion measurements, a saturation-recovery TurboFLASH acquiring 4 (1.5T) slices per second or 5 (3.0T, parallel imaging factor 2) w…