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Reference values of skeletal muscle area for diagnosis of sarcopenia using chest computed tomography in Asian general population

Authors
 Sung Woo Moon  ;  Sang Hoon Lee  ;  Ala Woo  ;  Ah Young Leem  ;  Su Hwan Lee  ;  Kyung Soo Chung  ;  Eun Young Kim  ;  Ji Ye Jung  ;  Young Ae Kang  ;  Moo Suk Park  ;  Young Sam Kim  ;  Chang Oh Kim  ;  Song Yee Kim 
Citation
 JOURNAL OF CACHEXIA SARCOPENIA AND MUSCLE, Vol.13(2) : 955-965, 2022-01 
Journal Title
JOURNAL OF CACHEXIA SARCOPENIA AND MUSCLE
ISSN
 2190-5991 
Issue Date
2022-01
MeSH
Adult ; Female ; Humans ; Male ; Middle Aged ; Muscle, Skeletal / diagnostic imaging ; Muscle, Skeletal / pathology ; Reference Values ; Retrospective Studies ; Sarcopenia* / diagnostic imaging ; Sarcopenia* / epidemiology ; Tomography, X-Ray Computed ; Young Adult
Keywords
Computed tomography ; Cutoff point ; Sarcopenia ; Thoracic muscle mass
Abstract
Background: Diagnostic cutoff points for sarcopenia in chest computed tomography (CT) have not been established although CT is widely used for investigating skeletal muscles. This study aimed to determine reference values for sarcopenia of thoracic skeletal muscles acquired from chest CT scans and to analyse variables related to sarcopenia using the cutoff values determined in a general Asian population.

Methods: We retrospectively reviewed chest CT scans of 4470 participants (mean age 54.8 ± 9.9 years, 65.8% male) performed at a check-up centre in South Korea (January 2016-August 2017). To determine cutoffs, 335 participants aged 19-39 years (mean age 35.2 ± 3.6 years, 75.2% male) were selected as the healthy and younger reference group, and 4135 participants aged ≥40 years (mean age 56.4 ± 8.4 years, 65.1% male) were selected as the study group. We measured the following: cross-sectional area (CSA) of the pectoralis, intercostalis, paraspinal, serratus, and latissimus muscles at the 4th vertebral region (T4CSA ); T4CSA divided by height2 (T4MI); pectoralis muscle area (PMCSA ); and PMCSA divided by height2 (PMI) at the 4th vertebral region. Sarcopenia cutoff was defined as sex-specific values of less than -2 SD below the mean from the reference group.

Results: In the reference group, T4CSA , T4MI, PMCSA , and PMI cutoffs for sarcopenia were 100.06cm2 , 33.69cm2 /m2 , 29.00cm2 , and 10.17cm2 /m2 in male, and 66.93cm2 , 26.01cm2 /m2 , 18.29cm2 , and 7.31cm2 /m2 in female, respectively. The prevalence of sarcopenia in the study group measured with T4CSA , T4MI, PMCSA and PMI cutoffs were 11.4%, 8.7%, 8.5%, and 10.1%, respectively. Correlations were observed between appendicular skeletal mass divided by height2 measured by bioelectrical impedance analysis (BIA) and T4CSA (r = 0.82; P < 0.001)/T4MI (r = 0.68; P < 0.001), and ASM/height2 measured by BIA and PMCSA (r = 0.72; P < 0.001)/PMI (r = 0.63; P < 0.001). In the multivariate logistic regression models, sarcopenia defined by T4CSA /T4MI were related to age [odds ratio (95% confidence interval), P-values: 1.09 (1.07-1.11), <0.001/1.05 (1.04-1.07), <0.001] and diabetes [1.60 (1.14-2.25), 0.007/1.47 (1.01-2.14), 0.043]. Sarcopenia defined by PMCSA /PMI were related to age [1.09 (1.08-1.10), <0.001/1.05 (1.03-1.06), <0.001], male sex [0.23 (0.18-0.30), <0.001/0.47 (0.32-0.71), <0.001], diabetes [2.30 (1.73-3.05), <0.001/1.63 (1.15-2.32), 0.007], history of cancer [2.51 (1.78-3.55), <0.001/1.61 (1.04-2.48), 0.033], and sufficient physical activity [0.67 (0.50-0.89), 0.007/0.74 (0.56-0.99), 0.042].

Conclusions: The reference cutoff values of a general population reported here will enable sex-specific standardization of thoracic muscle mass quantification and sarcopenia assessment.
Files in This Item:
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DOI
10.1002/jcsm.12946
Appears in Collections:
1. College of Medicine (의과대학) > Dept. of Internal Medicine (내과학교실) > 1. Journal Papers
Yonsei Authors
Kang, Young Ae(강영애) ORCID logo https://orcid.org/0000-0002-7783-5271
Kim, Song Yee(김송이) ORCID logo https://orcid.org/0000-0001-8627-486X
Kim, Young Sam(김영삼) ORCID logo https://orcid.org/0000-0001-9656-8482
Kim, Eun Young(김은영) ORCID logo https://orcid.org/0000-0002-3281-5744
Kim, Chang Oh(김창오) ORCID logo https://orcid.org/0000-0002-0773-5443
Moon, Sung Woo(문성우) ORCID logo https://orcid.org/0000-0001-9917-9802
Park, Moo Suk(박무석) ORCID logo https://orcid.org/0000-0003-0820-7615
Woo, Ala(우아라)
Lee, Sang Hoon(이상훈) ORCID logo https://orcid.org/0000-0002-7706-5318
Lee, Su Hwan(이수환) ORCID logo https://orcid.org/0000-0002-3487-2574
Leem, Ah Young(임아영) ORCID logo https://orcid.org/0000-0001-5165-3704
Jung, Kyung Soo(정경수) ORCID logo https://orcid.org/0000-0003-1604-8730
Jung, Ji Ye(정지예) ORCID logo https://orcid.org/0000-0003-1589-4142
URI
https://ir.ymlib.yonsei.ac.kr/handle/22282913/188451
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