A reliability assessment of constrained spherical deconvolution-based diffusion-weighted magnetic resonance imaging in individuals with chronic stroke
기관명 | NDSL |
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저널명 | Journal of neuroscience methods |
ISSN | 0165-0270, |
ISBN |
저자(한글) | Snow, N.J.,Peters, S.,Borich, M.R.,Shirzad, N.,Auriat, A.M.,Hayward, K.S.,Boyd, L.A. |
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저자(영문) | |
소속기관 | |
소속기관(영문) | |
출판인 | |
간행물 번호 | |
발행연도 | 2016-01-01 |
초록 | Background: Diffusion-weighted magnetic resonance imaging (DW-MRI) is commonly used to assess white matter properties after stroke. Novel work is utilizing constrained spherical deconvolution (CSD) to estimate complex intra-voxel fiber architecture unaccounted for with tensor-based fiber tractography. However, the reliability of CSD-based tractography has not been established in people with chronic stroke. New method: Establishing the reliability of CSD-based DW-MRI in chronic stroke. High-resolution DW-MRI was performed in ten adults with chronic stroke during two separate sessions. Deterministic region of interest-based fiber tractography using CSD was performed by two raters. Mean fractional anisotropy (FA), apparent diffusion coefficient (ADC), tract number, and tract volume were extracted from reconstructed fiber pathways in the corticospinal tract (CST) and superior longitudinal fasciculus (SLF). Callosal fiber pathways connecting the primary motor cortices were also evaluated. Inter-rater and test-retest reliability were determined by intra-class correlation coefficients (ICCs). Results: ICCs revealed excellent reliability for FA and ADC in ipsilesional (0.86-1.00; p |
원문URL | http://click.ndsl.kr/servlet/OpenAPIDetailView?keyValue=03553784&target=NART&cn=NART73544635 |
첨부파일 |
과학기술표준분류 | |
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ICT 기술분류 | |
DDC 분류 | |
주제어 (키워드) | Diffusion-weighted magnetic resonance imaging,Constrained spherical deconvolution,Stroke,Reliability,Intra-class correlation coefficient |