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Abstract #1504

MR-HIFU setup for preclinical treatment of a mouse model of pancreatic ductal adenocarcinoma

Joshua Park1, Ravneet Vohra1, Mark Mathis1, Ari Partanen2, Cecil Hayes1, Yak-Nam Wang3, Stella Whang4, Joo Ha Hwang4, and Donghoon Lee1

1Radiology, University of Washington, Seattle, WA, United States, 2Clinical Science MR Therapy, Philips, Andover, MA, United States, 3Applied Physics Laboratory, University of Washington, Seattle, WA, United States, 4Gastroenterology, University of Washington, Seattle, WA, United States

Preclinical studies using animal disease models on clinical MR-HIFU systems are important for human clinical translations but are often very challenging. We developed and tested a set of hardware components to treat a transgenic mouse model of pancreatic ductal adenocarcinoma on our clinical MR-HIFU system. The hardware components include an optimized RF coil, filter, RF switches and coil/animal holder. A gel phantom and a fixed mouse body were sonicated using the developed devices and a mild hyperthermia protocol on a 3T MR-HIFU system. Pulse sequences for multi-parametric MRI were also tested to acquire optimum signal-to-noise ratio on the samples.

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