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Uncertainty Quanti cation in CT pulmonary angiography

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RNTW02 - Rich and non-linear tomography in medical imaging, materials and non destructive testing

Computed tomography (CT) imaging of the thorax is widely used for the detection and monitoring of pulmonary embolism (PE). However, CT images can contain artifacts due to the acquisition or the processes involved in image reconstruction. Radiologists often have to distinguish between such artifacts and actual PEs. Our main contribution comes in the form of a scalable hypothesis testing method for CT, to enable quantifying uncertainty of possible PEs. In particular, we introduce a Bayesian Framework to quantify the uncertainty of an observed compact structure that can be identified as a PE. We assess the ability of the method to operate under high noise environments and with insufficient data. Joint work with Adwaye M Rambojun, Hend Komber, Jennifer Rossdale, Jay Suntharalingam, Jonathan C L Rodrigues, and Matthias J Ehrhardt

This talk is part of the Isaac Newton Institute Seminar Series series.

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