Multiphase Computed Tomographic Angiography with Bone Subtraction Using 3D Multichannel Convolution Neural Networks

Adam Huang, Wen Hsiang Cheng, Chung Wei Lee, Chung Yi Yang, Hon Man Liu

研究成果: 書貢獻/報告類型會議論文篇章同行評審

摘要

Multiphase computed tomographic angiography (CTA) have been demonstrated to be a reliable imaging tool for evaluating cerebral collateral circulation that can be used to select acute ischemic patients for recanalization therapy. We proposed using bone subtraction techniques to visualize multiphase CTA for clinicians to make fast and consistent decisions in the imaging triage of acute stroke patients. A total of 40 multiphase brain CTA datasets were collected and processed by two bone subtraction methods. The reference method used pre-contrast (phase 0) scans to create ground truth bone masks by thresholding. The tested method used only contrast enhanced (phases 1, 2, and 3) scans to extract bone masks with two versions (U-net and atrous) of 3D multichannel convolution neural networks (CNNs) in a supervised deep learning paradigm for semantic segmentation. Half (n = 20) of the datasets were used to train and half (n = 20) were used to test the conventional 3D U-net and a patch-based 3D multichannel atrous CNN. The tested U-net and atrous CNNs achieved a mean intersection over union (IoU) scores of 90.0% +/- 2.2 and 93.9% +/- 1.2 respectively.Clinical Relevance - This bone subtraction technique helps to visualize CTA volumetric datasets in the form of full brain angiogram-like images to assist the clinicians in the emergency department for evaluating acute ischemic stroke patients.

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主出版物標題42nd Annual International Conferences of the IEEE Engineering in Medicine and Biology Society
主出版物子標題Enabling Innovative Technologies for Global Healthcare, EMBC 2020
發行者Institute of Electrical and Electronics Engineers Inc.
頁面1274-1277
頁數4
ISBN(電子)9781728119908
DOIs
出版狀態已出版 - 7月 2020
事件42nd Annual International Conferences of the IEEE Engineering in Medicine and Biology Society, EMBC 2020 - Montreal, Canada
持續時間: 20 7月 202024 7月 2020

出版系列

名字Proceedings of the Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBS
2020-July
ISSN(列印)1557-170X

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???event.eventtypes.event.conference???42nd Annual International Conferences of the IEEE Engineering in Medicine and Biology Society, EMBC 2020
國家/地區Canada
城市Montreal
期間20/07/2024/07/20

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