Comparative analysis of body composition using torso CT from PET/CT with bioelectrical impedance and muscle strength in healthy adults

The role of torso computed tomography (CT) in evaluating body composition has been unexplored. This study assessed the potential of low-dose torso CT from positron emission tomography (PET)/CT for analyzing body composition and its relation to muscle strength. We retrospectively recruited 384 health...

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Bibliographic Details
Published in:Scientific reports 2024-09, Vol.14 (1), p.21597-13
Main Authors: Lee, Dong Yun, Oh, Jungsu S., Kim, Jeong Won, Kim, Jae Seung, Oh, Minyoung, Kim, Yong-il, Ko, Duk Han, Bae, Sung-Jin, Kim, Hong-Kyu, Ryu, Jin-Sook
Format: Article
Language:English
Subjects:
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Abdomen
Adult
Aged
Bioelectrical impedance analysis
Body Composition
Body composition analysis
Comparative analysis
Computed tomography
Correlation coefficient
Electric Impedance
Female
Gender
Humanities and Social Sciences
Humans
Impedance
Male
Middle Aged
multidisciplinary
Muscle strength
Muscle Strength - physiology
Muscle, Skeletal - diagnostic imaging
Muscle, Skeletal - physiology
Positron emission tomography
Positron Emission Tomography Computed Tomography - methods
Retrospective Studies
Sarcopenia
Sarcopenia - diagnostic imaging
Sarcopenia - physiopathology
Science
Science (multidisciplinary)
Tomography
Torso - diagnostic imaging
Torso - physiology
Torso computed tomography
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Summary:The role of torso computed tomography (CT) in evaluating body composition has been unexplored. This study assessed the potential of low-dose torso CT from positron emission tomography (PET)/CT for analyzing body composition and its relation to muscle strength. We retrospectively recruited 384 healthy Korean adults (231 men, 153 women) who underwent torso 18 F-FDG PET/CT, bioelectrical impedance analysis (BIA), and muscle strength tests (handgrip strength [HGS] and knee extension strength [KES]). CT images were segmented into three compartments: torso volumetric, abdominal volumetric, and abdominal areal. Muscle amounts from each compartment were indexed to height (m 2 ). BIA and HGS served as reference standards, with correlation coefficients ( r ) calculated. Torso muscle volumetric index (TorsoMVI) had the strongest correlations with BIA-derived values ( r  = 0.80 for men; r  = 0.73 for women), surpassing those from the abdominal compartments. TorsoMVI was also correlated significantly with HGS ( r  = 0.39, p  
ISSN:2045-2322
2045-2322
DOI:10.1038/s41598-024-71878-2