Automatic Ultrasound Vessel Segmentation with Deep Spatiotemporal Context Learning
Autor: | Baichuan Jiang, Shyam Bharat, Mingxin Zheng, Alvin I. Chen |
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Rok vydání: | 2021 |
Předmět: | |
Zdroj: | Simplifying Medical Ultrasound ISBN: 9783030875824 ASMUS@MICCAI |
Popis: | Accurate, real-time segmentation of vessel structures in ultrasound image sequences can aid in the measurement of lumen diameters and assessment of vascular diseases. This, however, remains a challenging task, particularly for extremely small vessels that are difficult to visualize. We propose to leverage the rich spatiotemporal context available in ultrasound to improve segmentation of small-scale lower-extremity arterial vasculature. We describe efficient deep learning methods that incorporate temporal, spatial, and feature-aware contextual embeddings at multiple resolution scales while jointly utilizing information from B-mode and Color Doppler signals. Evaluating on femoral and tibial artery scans performed on healthy subjects by an expert ultrasonographer, and comparing to consensus expert ground-truth annotations of inner lumen boundaries, we demonstrate real-time segmentation using the context-aware models and show that they significantly outperform comparable baseline approaches. |
Databáze: | OpenAIRE |
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