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Abstract #4134

Measuring Renal Function During Routine Clinical MR Exams: Is 5 Min Enough?

Jeff Lei Zhang1, Henry Rusinek1, Keyma Prince1, Hersh Chandarana1, David Stoffel1, Louisa Bokacheva1, Qun Chen1, Pippa Storey1, Vivian S. Lee1

1Radiology, New York University, New York, NY, USA

Glomerular filtration rate (GFR) measured by MR renography (MRR) is widely used in clinical practice for evaluating various renal diseases. MRR of short scan time has advantages of patient convenience and lower cost. Monte Carlo simulation and patient study were performed with different shortened scan time, and the precision and accuracy of the GFR estimates were compared with the reference values. The results showed that a low-dose MR renography scan time of less than 5 min appeared to be sufficient for GFR measurement.