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Automated facial-vestibulocochlear nerve complex identification based on data-driven tractography clustering

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机构: [1]Institute of Information Processing and Automation, College of Information Engineering, Zhejiang University of Technology, Hangzhou, China. [2]Zhejiang Provincial United Key Laboratory of Embedded Systems, Hangzhou, China. [3]Department of Radiology, Second Xiangya Hospital, Central South University, Changsha, China. [4]Department of Neurosurgery, Capital Medical University Xuanwu Hospital, Beijing, China.
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关键词: data-driven diffusion magnetic resonance imaging facial-vestibulocochlear nerve neurosurgery tractography tumor

摘要:
Small size and intricate anatomical environment are the main difficulties facing tractography of the facial-vestibulocochlear nerve complex (FVN), and lead to challenges in fiber orientation distribution (FOD) modeling, fiber tracking, region-of-interest selection, and fiber filtering. Experts need rich experience in anatomy and tractography, as well as substantial labor costs, to identify the FVN. Thus, we present a pipeline to identify the FVN automatically, in what we believe is the first study of the automated identification of the FVN. First, we created an FVN template. Forty high-resolution multishell data were used to perform data-driven fiber clustering based on the multishell multitissue constraint spherical deconvolution FOD model and deterministic tractography. We selected the brainstem and cerebellum (BS-CB) region as the seed region and removed the fibers that reach other brain regions. We then performed spectral fiber clustering twice. The first clustering was to create a BS-CB atlas and separate the fibers that pass through the cerebellopontine angle, and the other one was to extract the FVN. Second, we registered the subject-specific fibers in the space of the FVN template and assigned each fiber to the closest cluster to identify the FVN automatically by spectral embedding. We applied the proposed method to different acquirement sites, including two different healthy datasets and two tumor patient datasets. Experimental results showed that our automatic identification results have ideal colocalization with expert manual identification in terms of spatial overlap and visualization. Importantly, we successfully applied our method to tumor patient data. The FVNs identified by the proposed method were in agreement with intraoperative findings.

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基金编号: 61976190 61903336 2020C03070 LZ21F030003 LQ21F020017

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出版当年[2020]版:
大类 | 3 区 医学
小类 | 1 区 光谱学 3 区 生物物理 3 区 核医学
最新[2023]版:
大类 | 4 区 医学
小类 | 3 区 生物物理 3 区 光谱学 4 区 核医学
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出版当年[2019]版:
Q1 SPECTROSCOPY Q2 RADIOLOGY, NUCLEAR MEDICINE & MEDICAL IMAGING Q2 BIOPHYSICS
最新[2023]版:
Q1 SPECTROSCOPY Q2 BIOPHYSICS Q2 RADIOLOGY, NUCLEAR MEDICINE & MEDICAL IMAGING

影响因子: 最新[2023版] 最新五年平均 出版当年[2019版] 出版当年五年平均 出版前一年[2018版] 出版后一年[2020版]

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第一作者机构: [1]Institute of Information Processing and Automation, College of Information Engineering, Zhejiang University of Technology, Hangzhou, China. [2]Zhejiang Provincial United Key Laboratory of Embedded Systems, Hangzhou, China.
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