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Published in: BMC Musculoskeletal Disorders 1/2022

Open Access 01-12-2022 | Magnetic Resonance Imaging | Research

Comparison between magnetic resonance imaging and electrical impedance myography for evaluating lumbar skeletal muscle composition

Authors: Domenico Albano, Salvatore Gitto, Jacopo Vitale, Susan Bernareggi, Alberto Aliprandi, Luca Maria Sconfienza, Carmelo Messina

Published in: BMC Musculoskeletal Disorders | Issue 1/2022

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Abstract

Background

To compare electrical impedance myography (EIM) and MRI in assessing lumbar skeletal muscle composition.

Methods

One hundred forty-one patients (78 females, mean age 57 ± 19 years) were prospectively enrolled and underwent lumbar spine MRI, EIM with Skulpt®, and clinical evaluation including the questionnaire SARC-F. MRIs were reviewed to assess the Goutallier score of paravertebral muscles at L3 level and to calculate the cross sectional area (CSA) of both psoas, quadratus lumborum, erector spinae, and multifidus muscles on a single axial slice at L3 level, in order to calculate the skeletal muscle index (SMI=CSA/height2). We tested the correlation between EIM-derived parameters [body fat percentage (BF%) and muscle quality] and body mass index (BMI), Goutallier score (1–4), SMI, and SARC-F scores (0–10) using the Pearson correlation coefficient. The strength of association was considered large (0.5 to 1.0), medium (0.3 to 0.5), small (0.1 to 0.3).

Results

Pearson’s correlation coefficient showed small (0.26) but significant (p < 0.01) positive correlation between BF% obtained with EIM and Goutallier score. Small negative correlation (− 0.22, p < 0.01) was found between EIM muscle quality and Goutallier Score. Large negative correlation (− 0.56, p < 0.01) was found between SMI and Goutallier Score, while SMI showed small negative correlation with SARC-F (− 0.29, p < 0.01). Medium positive correlation was found between Goutallier Score and SARC-F (0.41, p < 0.01). BMI showed medium positive correlation with SMI (r = 0.369, p < 0.01) and small correlation with EIM muscle quality (r = − 0.291, p < 0.05) and BF% (r = 0.227, p < 0.05). We found a substantial increase of the strength of associations of BF% and muscle quality with Goutallier in the 18–40 years (r = 0.485 and r = − 0.401, respectively) and in the 41–70 years group (r = 0.448 and r = − 0.365, respectively).

Conclusions

Muscle quality and BF% measured by EIM device showed only small strength of correlation with other quantitative parameters for assessing muscle mass and fat infiltration. Interesting results have been found in younger patients, but Skulpt Chisel™ should be applied cautiously to assess lumbar skeletal muscle composition. This point deserves further investigation and other studies are warranted.

Trial registration

The registration number of this study is 107/INT/2019.
Literature
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go back to reference Wells AD, Bellovary BN, Houck JM, Ducharme JB, Masoud AA, Gibson AL, et al. New multisite bioelectrical impedance device compared to hydrostatic weighing and skinfold body fat methods. Int J Exerc Sci. 2020;13:1718 /pmc/articles/PMC7745910/. Accessed 26 May 2022.PubMedPubMedCentral Wells AD, Bellovary BN, Houck JM, Ducharme JB, Masoud AA, Gibson AL, et al. New multisite bioelectrical impedance device compared to hydrostatic weighing and skinfold body fat methods. Int J Exerc Sci. 2020;13:1718 /pmc/articles/PMC7745910/. Accessed 26 May 2022.PubMedPubMedCentral
Metadata
Title
Comparison between magnetic resonance imaging and electrical impedance myography for evaluating lumbar skeletal muscle composition
Authors
Domenico Albano
Salvatore Gitto
Jacopo Vitale
Susan Bernareggi
Alberto Aliprandi
Luca Maria Sconfienza
Carmelo Messina
Publication date
01-12-2022
Publisher
BioMed Central
Published in
BMC Musculoskeletal Disorders / Issue 1/2022
Electronic ISSN: 1471-2474
DOI
https://doi.org/10.1186/s12891-022-05902-9

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