CAD-RADS Scoring using Deep Learning and Task-Specific Centerline Labeling

• URL: http://arxiv.org/abs/2202.03671v1
• Date: Tue, 8 Feb 2022 06:22:03 GMT
• Title: CAD-RADS Scoring using Deep Learning and Task-Specific Centerline Labeling
• Authors: Felix Denzinger, Michael Wels, Oliver Taubmann, Mehmet A. G\"uls\"un, Max Sch\"obinger, Florian Andr\'e, Sebastian J. Buss, Johannes G\"orich, Michael S\"uhling, Andreas Maier and Katharina Breininger
• Abstract summary: In clinical practice, the severeness of coronary artery disease (CAD) is often assessed with a coronary CT angiography (CCTA) scan. We propose using severity-based label encoding, test time augmentation (TTA) and model ensembling for a task-specific deep learning architecture. We were able to raise the previously reported area under the receiver operating characteristic curve (AUC) from 0.914 to 0.942 in the rule-out and from 0.921 to 0.950 in the hold-out task respectively.
• Score: 5.854918673468336
• License: http://creativecommons.org/licenses/by-nc-sa/4.0/
• Abstract: With coronary artery disease (CAD) persisting to be one of the leading causes of death worldwide, interest in supporting physicians with algorithms to speed up and improve diagnosis is high. In clinical practice, the severeness of CAD is often assessed with a coronary CT angiography (CCTA) scan and manually graded with the CAD-Reporting and Data System (CAD-RADS) score. The clinical questions this score assesses are whether patients have CAD or not (rule-out) and whether they have severe CAD or not (hold-out). In this work, we reach new state-of-the-art performance for automatic CAD-RADS scoring. We propose using severity-based label encoding, test time augmentation (TTA) and model ensembling for a task-specific deep learning architecture. Furthermore, we introduce a novel task- and model-specific, heuristic coronary segment labeling, which subdivides coronary trees into consistent parts across patients. It is fast, robust, and easy to implement. We were able to raise the previously reported area under the receiver operating characteristic curve (AUC) from 0.914 to 0.942 in the rule-out and from 0.921 to 0.950 in the hold-out task respectively.

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