Hepatic Steatosis Detection By Ultrasound Versus MRI Proton-Density Fat Fraction
Leesburg, VA: According to ARRS' American Journal of Roentgenology (AJR), ultrasound-derived fat fraction (UDFF) is strongly associated with MRI proton-density fat fraction (PDFF) and provides high sensitivity for detecting hepatic steatosis.
Noting that a reduced number of measurements is sufficient for determining overall UDFF (i.e., median value of the median of the five measurements for each of three acquisitions), "a UDFF cutoff of >5% provides high AUC and sensitivity, albeit low specificity, for detection of MRI PDFF ≥5.5%," clarified corresponding author Andrew T. Trout of Cincinnati Children's Hospital Medical Center in Ohio.
Trout and team's cross-sectional study registered 56 overweight and obese adolescents and adults (≥16 years) who underwent investigational ultrasound (ACUSON Sequoia; deep abdominal transducer) and MRI examinations of the liver during a single visit from August to October 2020. Ultrasound examinations included three UDFF acquisitions of five measurements each. MRI examinations included three PDFF acquisitions with calculation of an overall median PDFF.
For further reference log on to:
https://arrs.org/ARRSLIVE/Pressroom/PressReleases/Hepatic_Steatosis_Ultrasound_MRI.aspx
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