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Gong Z, Lo WLA, Wang R, Li L. Electrical impedance myography combined with quantitative assessment techniques in paretic muscle of stroke survivors: Insights and challenges. Front Aging Neurosci 2023; 15:1130230. [PMID: 37020859 PMCID: PMC10069712 DOI: 10.3389/fnagi.2023.1130230] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2022] [Accepted: 02/27/2023] [Indexed: 03/18/2023] Open
Abstract
Aging is a non-modifiable risk factor for stroke and the global burden of stroke is continuing to increase due to the aging society. Muscle dysfunction, common sequela of stroke, has long been of research interests. Therefore, how to accurately assess muscle function is particularly important. Electrical impedance myography (EIM) has proven to be feasible to assess muscle impairment in patients with stroke in terms of micro structures, such as muscle membrane integrity, extracellular and intracellular fluids. However, EIM alone is not sufficient to assess muscle function comprehensively given the complex contributors to paretic muscle after an insult. This article discusses the potential to combine EIM and other common quantitative methods as ways to improve the assessment of muscle function in stroke survivors. Clinically, these combined assessments provide not only a distinct advantage for greater accuracy of muscle assessment through cross-validation, but also the physiological explanation on muscle dysfunction at the micro level. Different combinations of assessments are discussed with insights for different purposes. The assessments of morphological, mechanical and contractile properties combined with EIM are focused since changes in muscle structures, tone and strength directly reflect the muscle function of stroke survivors. With advances in computational technology, finite element model and machine learning model that incorporate multi-modal evaluation parameters to enable the establishment of predictive or diagnostic model will be the next step forward to assess muscle function for individual with stroke.
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Affiliation(s)
- Ze Gong
- Research & Development Institute of Northwestern Polytechnical University in Shenzhen, Shenzhen, China
- Institute of Medical Research, Northwestern Polytechnical University, Xi’an, China
| | - Wai Leung Ambrose Lo
- Department of Rehabilitation Medicine, First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Ruoli Wang
- KTH MoveAbility Lab, Department of Engineering Mechanics, KTH Royal Institute of Technology, Stockholm, Sweden
| | - Le Li
- Research & Development Institute of Northwestern Polytechnical University in Shenzhen, Shenzhen, China
- Institute of Medical Research, Northwestern Polytechnical University, Xi’an, China
- *Correspondence: Le Li,
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Albano D, Gitto S, Vitale J, Bernareggi S, Aliprandi A, Sconfienza LM, Messina C. Comparison between magnetic resonance imaging and electrical impedance myography for evaluating lumbar skeletal muscle composition. BMC Musculoskelet Disord 2022; 23:970. [DOI: 10.1186/s12891-022-05902-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/22/2022] [Accepted: 10/20/2022] [Indexed: 11/10/2022] Open
Abstract
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.
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Albano D, Gitto S, Vitale J, Bernareggi S, Lamorte S, Aliprandi A, Sconfienza LM, Messina C. Knee Muscles Composition Using Electrical Impedance Myography and Magnetic Resonance Imaging. Diagnostics (Basel) 2022; 12:diagnostics12092217. [PMID: 36140617 PMCID: PMC9497744 DOI: 10.3390/diagnostics12092217] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2022] [Revised: 09/06/2022] [Accepted: 09/10/2022] [Indexed: 11/29/2022] Open
Abstract
We evaluated the correlation of electrical impedance myography (EIM) measurements of knee muscles composition using Skulpt ChiselTM with MRI data retrieved from muscles segmentation. A total of 140 patients (71 females, 52 ± 21 years) underwent knee MRI, EIM with Skulpt®, and clinical evaluation (SARC-F questionnaire). MRIs were reviewed to assess the cross-sectional area (CSA) and skeletal muscle index (SMI = CSA/height2) of vastus medialis, vastus lateralis, biceps, semimembranosus, and sartorius. We tested the correlations of EIM-derived parameters [body fat-percentage (BF%) and muscle quality] with total CSA, CSA of each muscle, SMI, and SARC-F scores (0−10) using Pearson correlation coefficient. We found medium negative correlation of BF% with SMI (r = −0.430, p < 0.001) and total CSA (r = −0.445, p < 0.001), particularly with biceps (r = −0.479, p < 0.001), sartorius (r = −0.440, p < 0.001), and semimembranosus (r = −0.357, p < 0.001). EIM-derived muscle quality showed small-to-medium positive correlation with MRI measurements, ranging from r = 0.234 of biceps (p = 0.006) to r = 0.302 of total CSA (p < 0.001), except for vastus lateralis (r = 0.014, p = 0.873). SARC-F scores showed small correlations with EIM and MRI data, ranging from r = −0.132 (p = 0.121) with EIM muscle quality to r = −0.288 (p = 0.001) with CSA of vastus medialis. Hence, we observed small-to-medium correlations of muscle parameters derived from Skulpt ChiselTM with SARC-F scores and MRI parameters. We recommend using Skulpt ChiselTM with caution for assessing knee skeletal muscles composition.
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Affiliation(s)
- Domenico Albano
- IRCCS Istituto Ortopedico Galeazzi, 20161 Milan, Italy
- Correspondence: ; Tel.: +39-333-240-1189
| | - Salvatore Gitto
- Dipartimento di Scienze Biomediche per la Salute, Università degli Studi di Milano, 20122 Milan, Italy
| | - Jacopo Vitale
- IRCCS Istituto Ortopedico Galeazzi, 20161 Milan, Italy
| | | | - Sveva Lamorte
- Scuola di Specializzazione in Radiodiagnostica, Università di Parma, 43121 Parma, Italy
| | - Alberto Aliprandi
- Unità Operativa di Radiologia, Istituti Clinici Zucchi, 20052 Monza, Italy
| | - Luca Maria Sconfienza
- IRCCS Istituto Ortopedico Galeazzi, 20161 Milan, Italy
- Dipartimento di Scienze Biomediche per la Salute, Università degli Studi di Milano, 20122 Milan, Italy
| | - Carmelo Messina
- IRCCS Istituto Ortopedico Galeazzi, 20161 Milan, Italy
- Dipartimento di Scienze Biomediche per la Salute, Università degli Studi di Milano, 20122 Milan, Italy
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Sato H, Nakamura T. Evaluation of Skeletal Muscle Dysfunction Associated With Acute Inflammation by Electrical Impedance Myography: A Case Report on Skeletal Muscle Dysfunction After Cardiac Surgery and Literature Review. Cureus 2021; 13:e20166. [PMID: 34881132 PMCID: PMC8643273 DOI: 10.7759/cureus.20166] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/04/2021] [Indexed: 11/30/2022] Open
Abstract
Electrical impedance myography (EIM) is an evaluation technique for skeletal muscles that uses electrical impedance technology. Recent reviews have shown that EIM is useful as a method to assess changes in skeletal muscle quality and quantity with aging. These may be utilized for functional changes in inflammatory skeletal muscles, such as disease and operation. In this report, the impedance parameters using EIM present perioperative skeletal muscle changes in patients after cardiac surgery. In addition, we will describe the efficacy of EIM in skeletal muscle dysfunction due to inflammation or disease. This study aimed to elucidate the efficacy of EIM in acute inflammation-associated skeletal muscle dysfunction.
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Affiliation(s)
- Hiroki Sato
- Department of Radiological Technology, Graduate School of Health Sciences, Okayama University, Okayama, JPN.,Department of Rehabilitation Medicine, Kawasaki Medical School, Kurashiki, JPN.,Department of Rehabilitation Center, Kawasaki Medical School Hospital, Kurashiki, JPN
| | - Takao Nakamura
- Graduate School of Health Sciences, Okayama University, Okayama, JPN
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Longo S, Coratella G, Rampichini S, Borrelli M, Scurati R, Limonta E, Cè E, Esposito F. Local fat content and muscle quality measured by a new electrical impedance myography device: correlations with ultrasound variables. Eur J Sport Sci 2020; 21:388-399. [PMID: 32237960 DOI: 10.1080/17461391.2020.1751306] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
AbstractThe present study investigated the relationship between local fat percentage (SKfat) and muscle quality (MQ) estimated by a new hand-held electrical impedance myography (hEIM) device or derived from ultrasound and strength assessments. The right anterior thigh of 90 healthy participants (mean ± SD; age=22.9 ± 2.9 years; 45 men: BMI = 23.9 ± 2.4 kgm-2; 45 women: BMI = 21.1 ± 1.9 kgm-2) was scanned by hEIM and ultrasound. Correlations between SKfat, local subcutaneous fat (SUBfat), and echo intensity (EIus) were explored. Correlations between MQ, EIus, quadriceps femoris anatomical cross-sectional area (ACSAQF), knee extensors maximum voluntary isometric torque (T), T/ACSAQF, EIus/SUBfat, and ACSAQF/SUBfat were also assessed. SKfat correlated with SUBfat (r = 0.88; p < 0.001) and EIus (r = 0.64; p < 0.001). MQ correlated with EIus (r = -0.66; p < 0.001), ACSAQF (r = 0.37; p < 0.001), EIus/SUBfat (r = 0.37; p < 0.001), and ACSAQF/SUBfat (r = 0.81; p < 0.001). Multiple regression analysis showed that SUBfat, EIus, and sex explained 86% of SKfat variance, whereas ACSAQF/SUBfat, sex and EIus explained 75% of MQ variance. In conclusion, high hEIM local fat percentage relates to greater subcutaneous fat and intramuscular non-contractile tissue content. High hEIM muscle quality relates to greater muscle-size:subcutaneous-fat ratio and contractile tissue content. Sex influences the prediction of both parameters. This hEIM device seems to be useful to estimate local thigh composition.
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Affiliation(s)
- Stefano Longo
- Department of Biomedical Sciences for Health, Università degli Studi di Milano, Milan, Italy
| | - Giuseppe Coratella
- Department of Biomedical Sciences for Health, Università degli Studi di Milano, Milan, Italy
| | - Susanna Rampichini
- Department of Biomedical Sciences for Health, Università degli Studi di Milano, Milan, Italy
| | - Marta Borrelli
- Department of Biomedical Sciences for Health, Università degli Studi di Milano, Milan, Italy
| | - Raffaele Scurati
- Department of Biomedical Sciences for Health, Università degli Studi di Milano, Milan, Italy
| | - Eloisa Limonta
- Department of Biomedical Sciences for Health, Università degli Studi di Milano, Milan, Italy.,IRCCS Istituto Ortopedico Galeazzi, Milan, Italy
| | - Emiliano Cè
- Department of Biomedical Sciences for Health, Università degli Studi di Milano, Milan, Italy.,IRCCS Istituto Ortopedico Galeazzi, Milan, Italy
| | - Fabio Esposito
- Department of Biomedical Sciences for Health, Università degli Studi di Milano, Milan, Italy.,IRCCS Istituto Ortopedico Galeazzi, Milan, Italy
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Czeck MA, Raymond-Pope CJ, Prescott E, Bisch KL, Dengel DR. Body fat percent assessment between electrical impedance myography and dual X-ray absorptiometry. Am J Hum Biol 2020; 32:e23330. [PMID: 31566850 DOI: 10.1002/ajhb.23330] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2019] [Revised: 09/04/2019] [Accepted: 09/05/2019] [Indexed: 11/06/2022] Open
Abstract
OBJECTIVES To compare total and regional body fat percent (BF%) measurements obtained using a handheld electrical impedance myography (EIM) device in comparison to BF% measured by dual X-ray absorptiometry (DXA). METHODS Sixty-nine male and female (33 males/36 females; age = 21.9 ± 2.0 years, body mass index = 24.5 ± 3.6 kg/m2 ) college-age individuals participated in this study. Each participant's total and regional (ie, upper arms, upper legs, trunk) BF% was estimated using EIM and DXA. Metallic markers were used to delineate regional boundaries for analysis, including upper arms (biceps/triceps), upper legs (quadriceps/hamstrings), and trunk (abdominal region/low back region). Paired t-tests assessed the accuracy of BF% values estimated from EIM in comparison to BF% measured by DXA. RESULTS Observations revealed EIM reported significantly lower BF% for upper left arm (P < .001), upper right arm (P < .001), upper right leg (P = .002), and trunk (P < .001) values. However, no significant differences were observed in total (P = .434) and upper left leg (P = .855) BF% between the two devices. CONCLUSIONS This study's observations suggest that, EIM may be an accurate field method for measuring total BF%, but not regional BF%.
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Affiliation(s)
- Madeline A Czeck
- School of Kinesiology, University of Minnesota, Minneapolis, Minnesota
| | | | - Elyse Prescott
- School of Kinesiology, University of Minnesota, Minneapolis, Minnesota
| | - Katie L Bisch
- School of Kinesiology, University of Minnesota, Minneapolis, Minnesota
| | - Donald R Dengel
- School of Kinesiology, University of Minnesota, Minneapolis, Minnesota
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Hobson-Webb LD, Zwelling PJ, Pifer AN, Killelea CM, Faherty MS, Sell TC, Pastva AM. Point of Care Quantitative Assessment of Muscle Health in Older Individuals: An Investigation of Quantitative Muscle Ultrasound and Electrical Impedance Myography Techniques. Geriatrics (Basel) 2018; 3:geriatrics3040092. [PMID: 31011127 PMCID: PMC6371147 DOI: 10.3390/geriatrics3040092] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2018] [Revised: 12/08/2018] [Accepted: 12/13/2018] [Indexed: 12/13/2022] Open
Abstract
Background: Muscle health is recognized for its critical role in the functionality and well-being of older adults. Readily accessible, reliable, and inexpensive methods of measuring muscle health are needed to advance research and clinical care. Methods: In this prospective, blinded study, 27 patients underwent quantitative muscle ultrasound (QMUS), standard electrical impedance myography (sEIM), and handheld electrical impedance myography (hEIM) of the anterior thigh musculature by two independent examiners. Subjects also had dual-energy X-ray absorptiometry (DEXA) scans and standardized tests of physical function and strength. Data were analyzed for intra- and inter-rater reliability, along with correlations with DEXA and physical measures. Results: Measures of intra- and inter-rater reliability were excellent (>0.90) for all QMUS, sEIM, and hEIM parameters except intra-rater reliability of rectus femoris echointensity (0.87–0.89). There were moderate, inverse correlations between QMUS, sEIM, and hEIM parameters and measures of knee extensor strength. Moderate to strong correlations (0.57–0.81) were noted between investigational measures and DEXA-measured fat mass. Conclusions: QMUS, sEIM and hEIM were highly reliable in a controlled, same-day testing protocol. Multiple correlations with measures of strength and body composition were noted for each method. Point-of-care technologies may provide an alternative means of measuring health.
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Affiliation(s)
- Lisa D Hobson-Webb
- Duke University Department of Neurology/Neuromuscular Division, Durham, NC 27710, USA.
| | - Paul J Zwelling
- Duke University Department of Neurology/Neuromuscular Division, Durham, NC 27710, USA.
| | - Ashley N Pifer
- Duke University Department of Neurology/Neuromuscular Division, Durham, NC 27710, USA.
| | - Carrie M Killelea
- Duke University Department of Orthopaedic Surgery, Durham, NC 27710, USA.
- Michael W. Krzyzewski Human Performance Laboratory, Durham, NC 27710, USA.
| | - Mallory S Faherty
- Duke University Department of Orthopaedic Surgery, Durham, NC 27710, USA.
- Michael W. Krzyzewski Human Performance Laboratory, Durham, NC 27710, USA.
| | - Timothy C Sell
- Duke University Department of Orthopaedic Surgery, Durham, NC 27710, USA.
- Michael W. Krzyzewski Human Performance Laboratory, Durham, NC 27710, USA.
| | - Amy M Pastva
- Duke University Department of Orthopaedic Surgery, Durham, NC 27710, USA.
- Duke University Claude D. Pepper Older American Independence Center Durham, NC 27710, USA.
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