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Abstract #4629

Quantifying liver fibrosis via diamagnetic susceptibility sources using MRI: An ex-vivo feasibility study.

Chao Li1,2, Jinwei Zhang1,3, Jiahao Li1,3, Anne K. Koehne de González4, Martin R. Prince1, Gary M. Brittenham5, Pascal Spincemaille1, Thanh D. Nguyen1, and Yi Wang1
1Radiology, Weill Cornell Medicine, New York, NY, United States, 2Applied and Engineering Physics, Cornell Univeristy, Ithaca, NY, United States, 3Meinig School of Biomedical Engineering, Cornell Univeristy, Ithaca, NY, United States, 4Department of Pathology, Columbia University Medical Center, New York, NY, United States, 5Department of Pediatrics, Columbia University, New York, NY, United States

Synopsis

Keywords: Liver, Liver

Motivation: Liver biopsy, traditionally regarded as the benchmark for liver fibrosis staging, is an invasive procedure that may cause infection and bleeding.

Goal(s): To develop a non-invasive method to evaluate liver fibrosis using MRI.

Approach: Diamagnetic sources are separated from paramagnetic sources using a biophysical model and multi echo gradient echo data. The value of the diamagnetic sources can be used to quantify the amount of accumulation of collagen due to liver fibrosis.

Results: Significant differences in liver negative susceptibility were observed between lower stage, medium stage and higher stage of fibrosis.

Impact: Multi-echo gradient echo data may provide a way to non-invasively stage liver fibrosis.

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