RT Journal Article T1 A Machine Learning Approach Enables Quantitative Measurement of Liver Histology and Disease Monitoring in NASH. A1 Taylor-Weiner, Amaro A1 Pokkalla, Harsha A1 Han, Ling A1 Jia, Catherine A1 Huss, Ryan A1 Chung, Chuhan A1 Elliott, Hunter A1 Glass, Benjamin A1 Pethia, Kishalve A1 Carrasco-Zevallos, Oscar A1 Shukla, Chinmay A1 Khettry, Urmila A1 Najarian, Robert A1 Taliano, Ross A1 Subramanian, G Mani A1 Myers, Robert P A1 Wapinski, Ilan A1 Khosla, Aditya A1 Resnick, Murray A1 Montalto, Michael C A1 Anstee, Quentin M A1 Wong, Vincent Wai-Sun A1 Trauner, Michael A1 Lawitz, Eric J A1 Harrison, Stephen A A1 Okanoue, Takeshi A1 Romero-Gomez, Manuel A1 Goodman, Zachary A1 Loomba, Rohit A1 Beck, Andrew H A1 Younossi, Zobair M AB Manual histological assessment is currently the accepted standard for diagnosing and monitoring disease progression in NASH, but is limited by variability in interpretation and insensitivity to change. Thus, there is a critical need for improved tools to assess liver pathology in order to risk stratify NASH patients and monitor treatment response. Here, we describe a machine learning (ML)-based approach to liver histology assessment, which accurately characterizes disease severity and heterogeneity, and sensitively quantifies treatment response in NASH. We use samples from three randomized controlled trials to build and then validate deep convolutional neural networks to measure key histological features in NASH, including steatosis, inflammation, hepatocellular ballooning, and fibrosis. The ML-based predictions showed strong correlations with expert pathologists and were prognostic of progression to cirrhosis and liver-related clinical events. We developed a heterogeneity-sensitive metric of fibrosis response, the Deep Learning Treatment Assessment Liver Fibrosis score, which measured antifibrotic treatment effects that went undetected by manual pathological staging and was concordant with histological disease progression. Our ML method has shown reproducibility and sensitivity and was prognostic for disease progression, demonstrating the power of ML to advance our understanding of disease heterogeneity in NASH, risk stratify affected patients, and facilitate the development of therapies. YR 2021 FD 2021-06-24 LK http://hdl.handle.net/10668/17146 UL http://hdl.handle.net/10668/17146 LA en DS RISalud RD Apr 17, 2025