Search Results for author: Douglas L. Arnold

Found 10 papers, 2 papers with code

Mitigating Calibration Bias Without Fixed Attribute Grouping for Improved Fairness in Medical Imaging Analysis

no code implementations4 Jul 2023 Changjian Shui, Justin Szeto, Raghav Mehta, Douglas L. Arnold, Tal Arbel

However, models that are well calibrated overall can still be poorly calibrated for a sub-population, potentially resulting in a clinician unwittingly making poor decisions for this group based on the recommendations of the model.

Attribute Fairness +2

Improving Image-Based Precision Medicine with Uncertainty-Aware Causal Models

no code implementations5 May 2023 Joshua Durso-Finley, Jean-Pierre Falet, Raghav Mehta, Douglas L. Arnold, Nick Pawlowski, Tal Arbel

We evaluate the correlation of the uncertainty estimate with the factual error, and, given the lack of ground truth counterfactual outcomes, demonstrate how uncertainty for the ITE prediction relates to bounds on the ITE error.

counterfactual Decision Making

Clinically Plausible Pathology-Anatomy Disentanglement in Patient Brain MRI with Structured Variational Priors

no code implementations15 Nov 2022 Anjun Hu, Jean-Pierre R. Falet, Brennan S. Nichyporuk, Changjian Shui, Douglas L. Arnold, Sotirios A. Tsaftaris, Tal Arbel

We propose a hierarchically structured variational inference model for accurately disentangling observable evidence of disease (e. g. brain lesions or atrophy) from subject-specific anatomy in brain MRIs.

Anatomy Disentanglement +1

Rethinking Generalization: The Impact of Annotation Style on Medical Image Segmentation

no code implementations31 Oct 2022 Brennan Nichyporuk, Jillian Cardinell, Justin Szeto, Raghav Mehta, Jean-Pierre R. Falet, Douglas L. Arnold, Sotirios A. Tsaftaris, Tal Arbel

This is particularly important in the context of medical image segmentation of pathological structures (e. g. lesions), where the annotation process is much more subjective, and affected by a number underlying factors, including the annotation protocol, rater education/experience, and clinical aims, among others.

Attribute Image Segmentation +2

Personalized Prediction of Future Lesion Activity and Treatment Effect in Multiple Sclerosis from Baseline MRI

no code implementations1 Apr 2022 Joshua Durso-Finley, Jean-Pierre R. Falet, Brennan Nichyporuk, Douglas L. Arnold, Tal Arbel

Precision medicine for chronic diseases such as multiple sclerosis (MS) involves choosing a treatment which best balances efficacy and side effects/preferences for individual patients.

Cohort Bias Adaptation in Aggregated Datasets for Lesion Segmentation

no code implementations2 Aug 2021 Brennan Nichyporuk, Jillian Cardinell, Justin Szeto, Raghav Mehta, Sotirios Tsaftaris, Douglas L. Arnold, Tal Arbel

Many automatic machine learning models developed for focal pathology (e. g. lesions, tumours) detection and segmentation perform well, but do not generalize as well to new patient cohorts, impeding their widespread adoption into real clinical contexts.

Lesion Segmentation

Optimizing Operating Points for High Performance Lesion Detection and Segmentation Using Lesion Size Reweighting

no code implementations27 Jul 2021 Brennan Nichyporuk, Justin Szeto, Douglas L. Arnold, Tal Arbel

There are many clinical contexts which require accurate detection and segmentation of all focal pathologies (e. g. lesions, tumours) in patient images.

Lesion Detection Segmentation

Exploring Uncertainty Measures in Deep Networks for Multiple Sclerosis Lesion Detection and Segmentation

1 code implementation3 Aug 2018 Tanya Nair, Doina Precup, Douglas L. Arnold, Tal Arbel

We present the first exploration of multiple uncertainty estimates based on Monte Carlo (MC) dropout [4] in the context of deep networks for lesion detection and segmentation in medical images.

Lesion Detection Lesion Segmentation +1

Cannot find the paper you are looking for? You can Submit a new open access paper.