Quantifying Pancreatic Fat Using a Free-Breathing Acquisition in Adults With Obesity Undergoing Diet-Induced Weight Loss-Results From the LION Study.
Philipp Braun, Christoph Zoellner, Mingming Wu et al.
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In 30 seconds
This randomized controlled trial evaluated a free-breathing six-echo radial stack-of-stars acquisition for quantifying pancreatic fat in 18 adults with obesity undergoing diet-induced weight loss. The study found excellent agreement between this method and traditional Cartesian scans, with significant reductions in pancreatic proton density fat fraction (PDFF) and volume post-intervention, indicating the feasibility of the new technique.
Key findings
- Radial and Cartesian scans showed excellent agreement for pancreatic volume (R² = 0.97, ICC = 0.96).
- Post-intervention, both methods captured significant decreases in pancreatic PDFF (mean loss 2.3% ± 2.1%).
- Mean pancreatic volume decreased by 8.4 cm³ ± 7.7 cm³ after the intervention (p < 0.001).
- Radial scans exhibited a minor positive volume bias at higher pancreatic volumes (mean volume bias: 5.8 cm³).
Why it matters
Accurate quantification of pancreatic fat is crucial for understanding obesity-related metabolic disorders. This study suggests that a free-breathing imaging technique can effectively monitor changes in pancreatic fat during weight loss interventions, potentially improving patient management strategies.