Meeting Banner
Abstract #2268

Accuracy and precision of measured T1 in hepatic portal vein blood using a variety of Look- Locker and Modified Look-Locker Inversion Recovery sequences.

Svein Are Sirirud Vatnehol1,2,3, Atle Bjørnerud4, Camilla Haglerød2, Per Kristian Hol1,3, Mahmood Amiry-Moghaddam2,5, and Tryggve Holck Storås 4

1The Intervention Center, Oslo University Hospital, Oslo, Norway, 2Oxy Solutions AS, Oslo, Norway, 3Faculty of Medicine, University of Oslo, Oslo, Norway, 4Dept. of Diagnostic Physics, Oslo University Hospital, Oslo, Norway, 5Institute of basic medical sciences, University of Oslo, Oslo, Norway

The longitudinal variation and averaged T1 measured in the hepatic portal vein (HPV) obtained with 12 variations of Look-Locker (LL) and Modified Look-Locker Inversion Recovery (MOLLI) sequences were compared to identify the sequence with least variation. Among the sequences studied, LL sequence with 5 beat readout and 45o flip angle and MOLLI with an acquisition scheme 10 beats readout, 5 beats recovery followed by 5 beat readout (10(5)5) were shown to be the most stable. Method of image analysis and the use of simulated versus real-time EKG did not significantly affect the stability of the T1-estimates.

This abstract and the presentation materials are available to members only; a login is required.

Join Here