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HAI Weekly Seminar with Akshay Chaudhari | Stanford HAI

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eventSeminar

HAI Weekly Seminar with Akshay Chaudhari

Status
Past
Date
Wednesday, November 03, 2021 10:00 AM - 11:00 AM PST/PDT
Location
Virtual
Topics
Healthcare
Overview
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Beyond Image Interpretation in Radiology: Data-Efficient AI for Accelerating MRI Acquisition

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Event Contact
Kaci Peel
kpeel@stanford.edu

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Recent applications of artificial intelligence (AI) in radiology have focused on image interpretation tasks such as image classification, segmentation, or detection. However, a fundamental challenge in radiology is to acquire these medical images in a safe and efficient manner. New AI techniques have been proposed to solve the inverse problem of image reconstruction wherein only a limited set of measurements are used to reconstruct medical images with high diagnostic quality. Specifically, in this talk, I will describe how physics-guided AI is currently being used to improve the speed of magnetic resonance imaging (MRI). I will further describe how we may eschew requiring large extents of paired datasets required for supervised model training by using novel unsupervised and semi-supervised approaches for accelerated MRI. Beyond data efficiency, these approaches can help mitigate the challenge of distribution shifts for trained models. I will conclude by describing a 1.5TB dataset that we have made publicly available to help evaluate MRI reconstructions with clinically-relevant metrics. 

Akshay Chaudhari
Assistant Professor of Radiology (Integrative Biomedical Imaging Informatics) and, by courtesy, of Biomedical Data Science, Stanford University