Fully Automated Thrombus Segmentation on CT Images of Patients with Acute Ischemic StrokeDownload PDF

21 Apr 2022, 12:53 (edited 04 Jun 2022)MIDL 2022 Short PapersReaders: Everyone
  • Keywords: ischemic stroke, thrombus, segmentation, CT, U-Net
  • TL;DR: We have developed a thrombus segmentation method for ischemic stroke patients which fascilitates the extraction of thrombus imaging characteristics and can therefore potentially assist radiologists in making treatment decesions.
  • Abstract: Thrombus imaging characteristics are associated with treatment success and functional outcomes in stroke patients. However, assessing these characteristics based on manual annotations is labor intensive and subject to observer bias. Therefore, we aimed to create an automated pipeline for consistent and fast full thrombus segmentation. We first found the occlusion location using StrokeViewer LVO and created a bounding box around it. We trained dual modality U-Net based convolutional neural networks (CNNs) to subsequently segment the thrombus inside this bounding box. Segmentation results have high spatial accuracy with manual delineations and can therefore be used to determine thrombus characteristics and potentially benefit decision making in clinical practice.
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  • Paper Type: recently published or submitted journal contributions
  • Primary Subject Area: Segmentation
  • Secondary Subject Area: Application: Radiology
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