Evidence map›Paper›PMID 30635758›Full record

ArticleEuropean radiology2019

Diffusion tensor imaging of the sciatic nerve in Charcot-Marie-Tooth disease type I patients: a prospective case-control study.

Hyun Su Kim, Young Cheol Yoon, Byung-Ok Choi, Wook Jin, Jang Gyu Cha, Jae-Hun Kim

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Article in European radiology, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

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3 · Its place in the literature

Who cites it

15 citing papers in PubMed.

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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

6 authors.

Hyun Su KimDepartment of Radiology, Samsung Medical Center, School of Medicine, Sungkyunkwan University, 81 Ilwon-Ro, Gangnam-gu, Seoul, 135-710, South Korea.
Young Cheol YoonDepartment of Radiology, Samsung Medical Center, School of Medicine, Sungkyunkwan University, 81 Ilwon-Ro, Gangnam-gu, Seoul, 135-710, South Korea. youngcheol.yoon@gmail.com.ORCID http://orcid.org/0000-0002-7822-5344
Byung-Ok ChoiDepartment of Neurology, Samsung Medical Center, School of Medicine, Sungkyunkwan University, Seoul, South Korea.
Wook JinDepartment of Radiology, Kyung Hee University Hospital at Gangdong, Seoul, South Korea.
Jang Gyu ChaDepartment of Radiology, Soonchunhyang University Bucheon Hospital, Bucheon, South Korea.
Jae-Hun KimDepartment of Radiology, Samsung Medical Center, School of Medicine, Sungkyunkwan University, 81 Ilwon-Ro, Gangnam-gu, Seoul, 135-710, South Korea.

Funding

Bracco Imaging PHO0162171
6 · The paper itself

Abstract

objectivesThis study aimed to evaluate whether diffusion tensor imaging (DTI) parameters and cross-sectional area (CSA) can differentiate between the sciatic nerve of Charcot-Marie-Tooth (CMT) disease type I (demyelinating form) patients and that of controls.

methodsThis prospective comparison study included 18 CMT type I patients and 18 age/sex-matched volunteers. Magnetic resonance imaging including DTI and axial T2-weighted Dixon sequence was performed for each subject. Region of interest analysis was independently performed by two radiologists on each side of the sciatic nerve at four levels: hamstring tendon origin (level 1), lesser trochanter of the femur (level 2), gluteus maximus tendon insertion (level 3), and mid-femur (level 4). Fractional anisotropy (FA), mean diffusivity (MD), axial diffusivity (AD), and radial diffusivity (RD) were calculated. The CSA of the sciatic nerve bundle was measured using axial water-only image at each level. Comparisons of DTI parameters between the two groups were performed using the two-sample t test and Mann-Whitney U test. Interobserver agreement analysis was also conducted.

resultsInterobserver agreement was excellent for all DTI parameter analyses. FA was significantly lower at all four levels in CMT patients than controls. RD, MD, and CSA were significantly higher at all four levels in CMT patients. AD was significantly higher at level 2 in CMT patients.

conclusionDTI assessment of the sciatic nerve is reproducible and can discriminate the demyelinating nerve pathology of CMT type I patients from normal nerves. The CSA of the sciatic nerve is also a potential parameter for diagnosing nerve abnormality in CMT type I patients. KEY POINTS: • Diffusion tensor imaging parameters of the sciatic nerve at proximal to mid-femur level revealed significant differences between the Charcot-Marie-Tooth disease patients and controls. • The cross-sectional area of the sciatic nerve was significantly larger in the Charcot-Marie-Tooth disease patients. • Interobserver agreement was excellent (intraclass coefficient > 0.8) for all diffusion tensor imaging parameter analyses.

Indexed as

Diffusion Tensor ImagingAdultAnisotropyCase-Control StudiesCharcot-Marie-Tooth DiseaseFemaleHumansMaleObserver VariationProspective StudiesSciatic NerveYoung AdultDiffusion tensor imagingMagnetic resonance imagingNeuromuscular diseaseSciatic nerve

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.