Performance of Self-Calibrated Phase Contrast Correction in Pediatric and Congenital Cardiovascular MRI
Ana Beatriz Solana1, Erin A. Paul2, Ek Tsoon Tan3, Amee M. Shah2, Wyman W. Lai2, Christopher J. Hardy3, and Anjali Chelliah2
1GE Global Research, Garching bei Muenchen, Germany, 2Dept of Pediatrics, New York-Presbyterian Morgan Stanley Children's Hospital of New York, New York, NY, United States, 3GE Global Research, Niskayuna, NY, United States
Phase contrast (PC)
MR flow measurements are affected by multiple sources of error, including background
phase offsets. The gold-standard approach to correct these offsets involves
repeating PC measurements on a static phantom, prolonging each CMR study and impeding
exam workflow. Here, we compared the performance of a self-calibrated correction
to static-phantom corrected PC data obtained from a pediatric and congenital
heart disease population. Self-calibrated correction results showed strong agreement with
phantom-corrected data for all vessel types and differed from static-phantom
correction by a mean difference in Qp/Qs values of only 0.069.
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