Evidence map›Paper›PMID 28828579›Full record

ArticleClinical neuroradiology2018

Quantitative Evaluation of the Compressed L5 and S1 Nerve Roots in Unilateral Lumbar Disc Herniation by Using Diffusion Tensor Imaging.

Jiulong Zhang, Feng Zhang, Fuxia Xiao, Zuogang Xiong, Dong Liu, Ting Hua, Nekitsing Indima, Guangyu Tang

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Article in Clinical neuroradiology, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed, 3 pooled it
–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

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

13 citing papers in PubMed, 3 syntheses or guidelines pooled it.

  1. Pooled it
  2. Diffusion tensor imaging with fiber tracking provides a valuable quantitative and clinical evaluation for compressed lumbosacral nerve roots: a systematic review and meta-analysis.European spine journal : official publication of the European Spine Society, the European Spinal Deformity Society, and the European Section of the Cervical Spine Research Society · 2021
    Pooled it
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  9. The use of diffusion tensor imaging in spinal pathology: a comprehensive literature review.European spine journal : official publication of the European Spine Society, the European Spinal Deformity Society, and the European Section of the Cervical Spine Research Society · 2024
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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

8 authors.

Jiulong ZhangDepartment of Radiology, Shanghai Tenth People's Hospital, Tongji University School of Medicine, 200072, Shanghai, China.
Feng ZhangDepartment of Radiology, Shanghai Tenth People's Hospital, Tongji University School of Medicine, 200072, Shanghai, China.
Fuxia XiaoDepartment of Radiology, Shanghai Tenth People's Hospital, Tongji University School of Medicine, 200072, Shanghai, China.
Zuogang XiongDepartment of Radiology, Shanghai Tenth People's Hospital, Tongji University School of Medicine, 200072, Shanghai, China.
Dong LiuDepartment of Radiology, Shanghai Tenth People's Hospital, Tongji University School of Medicine, 200072, Shanghai, China.
Ting HuaDepartment of Radiology, Shanghai Tenth People's Hospital, Tongji University School of Medicine, 200072, Shanghai, China.
Nekitsing IndimaDepartment of Radiology, Shanghai Tenth People's Hospital, Tongji University School of Medicine, 200072, Shanghai, China.
Guangyu TangDepartment of Radiology, Shanghai Tenth People's Hospital, Tongji University School of Medicine, 200072, Shanghai, China. tgy17@126.com.

Funding

National Natural Science Foundation of China 81071134Shanghai Tenth People's Hospital 5810 Project 11RD104
6 · The paper itself

Abstract

background and purposeNerve root compression by lumbar disc herniation (LDH) induces a series of clinical symptoms, seriously affecting the patient's life and work. The purpose of this study is to investigate microstructural changes and fiber bundle abnormalities of the compressed L5 and S1 nerve roots in young patients with unilateral LDH by using diffusion tensor imaging (DTI).

methodsForty young patients with unilateral LDH and 17 healthy volunteers participated in the study, and 33 patients received follow-up DTI examination after one month of conservative treatment. Fractional anisotropy (FA), apparent diffusion coefficient (ADC) and trace weight (TraceW) values of the L5 and S1 nerve roots were measured on FA maps.

resultsThe mean FA, ADC and TraceW values of the affected nerve roots were 0.259 ± 0.047, 1.79 ± 0.252 and 0.076 ± 0.025, respectively. Compared to the contralateral side and volunteers, the affected nerve roots showed a decreased FA (P < 0.01), an increased ADC (P < 0.01) and TraceW (P < 0.05). The compression severity had a moderately negative correlation with FA (r = -0.646, P < 0.01) and positive correlation with ADC (r = 0.408, P < 0.01) but not with TraceW (r = 0.298, P = 0.06). For 33 patients with follow-up study after conservative treatment, FA (0.286 ± 0.06) and ADC (1.630 ± 0.046) in the affected nerve roots showed an increasing and a decreasing trend, respectively. Moreover, FA values (14 cases; 0.246 ± 0.015, P = 0.213) in the severe compression group had no significant changes between initial and follow-up data.

conclusionsDTI is able to assess microstructural abnormalities of the compressed nerve roots and has potentially practical value for prognostic evaluation after treatment in patients with LDH.

Indexed as

AdolescentAdultAnisotropyDiffusion Tensor ImagingFemaleHumansImage Interpretation, Computer-AssistedIntervertebral Disc DisplacementLumbar VertebraeMagnetic Resonance ImagingMaleNerve Compression SyndromesReference ValuesSacrumSensitivity and SpecificitySpinal Nerve RootsApparent diffusion coefficientDiffusion tensor imagingFractional anisotropyLumbar disc herniationNerve roots

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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.