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Diffusion tensor im...
Diffusion tensor imaging of the roots of the brachial plexus : a systematic review and meta-analysis of normative values
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Wade, Ryckie G. (författare)
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Whittam, Alexander (författare)
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Teh, Irvin (författare)
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- Andersson, Gustav (författare)
- Umeå universitet,Handkirurgi,Wallenberg centrum för molekylär medicin vid Umeå universitet (WCMM),Institutionen för integrativ medicinsk biologi (IMB)
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Yeh, Fang-Cheng (författare)
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- Wiberg, Mikael (författare)
- Umeå universitet,Handkirurgi,Institutionen för integrativ medicinsk biologi (IMB)
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- Bourke, Grainne (författare)
- Umeå universitet,Institutionen för integrativ medicinsk biologi (IMB),Handkirurgi,Department of Plastic and Reconstructive Surgery, Leeds Teaching Hospitals Trust, UK; Leeds Institute for Medical Research, University of Leeds, Leeds, UK
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(creator_code:org_t)
- 2020-10-09
- 2020
- Engelska.
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Ingår i: Clinical and Transational Imaging. - : Springer. - 2281-5872 .- 2281-7565. ; 8, s. 419-431
- Relaterad länk:
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https://umu.diva-por... (primary) (Raw object)
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- Purpose: Diffusion tensor magnetic resonance imaging (DTI) characterises tissue microstructure and provides proxy measures of myelination, axon diameter, fibre density and organisation. This may be valuable in the assessment of the roots of the brachial plexus in health and disease. Therefore, there is a need to define the normal DTI values.Methods: The literature was systematically searched for studies of asymptomatic adults who underwent DTI of the brachial plexus. Participant characteristics, scanning protocols, and measurements of the fractional anisotropy (FA) and mean diffusivity (MD) of each spinal root were extracted by two independent review authors. Generalised linear modelling was used to estimate the effect of experimental conditions on the FA and MD. Meta-analysis of root-level estimates was performed using Cohen’s method with random effects.Results: Nine articles, describing 316 adults (1:1 male:female) of mean age 35 years (SD 6) were included. Increments of ten diffusion sensitising gradient directions reduced the mean FA by 0.01 (95% CI 0.01, 0.03). Each year of life reduced the mean MD by 0.03 × 10–3 mm2/s (95% CI 0.01, 0.04). At 3-T, the pooled mean FA of the roots was 0.36 (95% CI 0.34, 0.38; I2 98%). The pooled mean MD of the roots was 1.51 × 10–3 mm2/s (95% CI 1.45, 1.56; I2 99%).Conclusions: The FA and MD of the roots of the brachial plexus vary according to experimental conditions and participant factors. We provide summary estimates of the normative values in different conditions which may be valuable to researchers and clinicians alike.
Ämnesord
- MEDICIN OCH HÄLSOVETENSKAP -- Klinisk medicin -- Radiologi och bildbehandling (hsv//swe)
- MEDICAL AND HEALTH SCIENCES -- Clinical Medicine -- Radiology, Nuclear Medicine and Medical Imaging (hsv//eng)
Nyckelord
- Diffusion tensor
- Brachial plexus
- Normal
- Normative
- Healthy
- Peripheral nerve
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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