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Abstract #1567

Magnetic resonance biomarkers for cachexia in a mouse model of pancreatic ductal adenocarcinoma.

Ravneet S Vohra1, Matthew Campbell1, Joshua Park1, Kayla Gravelle2, Stella wHang2, Yak-Nam Wang2, Joo-Ha Hwang3, David Marcinek1, and Donghoon Lee1

1Department of Radiology, University of Washington, Seattle, WA, United States, 2Center for Industrial and Medical Ultrasound Applied Physics Laboratory, University of Washington, Seattle, WA, United States, 3Department of Medicine, University of Washington, Seattle, WA, United States

Cancer induced cachexia is prevalent with many cancers and is characterized by loss of muscle and fat mass. In pancreatic cancer the syndrome affects approximately 80% of patients. Non-invasive multi-parametric MRI was used to monitor the progression of cachexia in a genetically engineered mouse model of pancreatic ductal adenocarcinoma (PDAC). Using pixel-by-pixel comparison, we demonstrate a significant decrease in skeletal muscle T2 and increase in magnetization transfer ratio (MTR). Additionally, we found significant difference in diffusion parameters.

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