Talks and presentations

Integrating Regional Perfusion Ct Information Improves Prediction Of Infarction After Stroke

November 09, 2020

Talk, ESO-WSO 2020 Virtual Conference, Virtual & Vienna, Austria

Physiological evidence suggests that perfusion characteristics (vascular supply, collateral blood flow) of neighbouring brain regions can be highly correlated. We investigated whether integrating perfusion information from the area surrounding a given voxel (i.e. the receptive field) improves the prediction of infarction of this voxel.

Bayesian Skip Net: Building on Prior Information for the Prediction and Segmentation of Stroke Lesions

October 04, 2020

Talk, Brain Lesion Workshop, MICCAI 2020, Virtual & Lima, Peru

Perfusion CT is widely used in acute ischemic stroke to determine eligibility for acute treatment, by defining an ischemic core and penumbra. In this talk held at the Brain Lesion Workshop at MICCAI 2020, we presented a novel way of building on prior information for the automatic prediction and segmentation of stroke lesions. We reformulate the task to identify differences from a prior segmentation by extending a three-dimensional Attention Gated Unet with a skip connection allowing only an unchanged prior to bypass most of the network. We show that this technique improves results obtained by a baseline Attention Gated Unet on both the Geneva Stroke Dataset and the ISLES 2018 dataset.

Lombalgie Chronique

February 25, 2020

Talk, University of Geneva, Geneva, Switzerland

Lombalgie chronique et poussées aigues en médecine de premier recours.