Quantitative Perfusion Mapping of the Kidneys using FAIR true-FISP Imaging
P Martirosian, G Helms, U Klose, I Mader, M Fenchel, CD Claussen, F Schick · RöFo - Fortschritte auf dem Gebiet der Röntgenstrahlen und der bildgebenden Verfahren · 2004 · Heft 03
Bibliografische Angaben
Zusammenfassung
Purpose: In addition to a generally higher signal-to-noise ratio (SNR), a longer T1 relaxation time contributes to a relative increase of the perfusion related signal yield by performing the arterial spin labelling (ASL) studies at higher fields. ASL is usually performed with echo planar imaging (EPI) because this provides relatively high SNR in short measuring times. Unfortunately, those techniques are very susceptible to static magnetic field inhomogeneities. These affect many abdominal regions, especially at higher field strength. In addition the EPI signal affected by the decrease in T2 caused by the fast ex…
