Meeting Banner
Abstract #2728

Inter-study reproducibility of interleaved spiral phase velocity mapping of renal artery blood flow velocity

Jennifer Keegan 1 , Hitesh Patel 1 , Robin Simpson 2 , Raad Mohiaddin 1,3 , and David Firmin 1,3

1 Royal Brompton Hospital, London, United Kingdom, 2 University of Freiburg, Freiburg, Germany, 3 Imperial College, London, United Kingdom

Renal resistive index (RI) and pulsatility index (PI) are reliable measures of downstream renal resistance which correlate with the severity of renal disease. To date, breath-hold MR phase velocity mapping studies have lacked the temporal resolution required to accurately determine these pulsatility parameters. We have developed a high temporal resolution (19 ms) breath-hold spiral phase velocity mapping technique for the assessment of the temporal flow patterns in the renal arteries and show high inter-observer and inter-study reproducibility. We conclude that high temporal resolution spiral phase velocity mapping allows reproducible assessment of renal pulsatility indices.

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

Join Here