Work

Measurement of intramuscular fat by muscle echo intensity

Year: 2015

Type: article

Abstract: INTRODUCTION: The aim of this study was to compare ultrasound echo intensity (EI) with high-resolution T1 -weighted MRI and to establish calibration equations to estimate percent intramuscular fat from EI. METHODS: Thirty-one participants underwent both ultrasound and MRI testing of 4 muscles: rectus femoris (RF); biceps femoris (BF); tibialis anterior (TA); and medial gastrocnemius (MG). RESULTS: Strong correlations were found between MRI percent fat and muscle EI after correcting for subcutaneous fat thickness (r = 0.91 in RF, r = 0.80 in BF, r = 0.80 in TA, r = 0.76 in MG). Three types of calibration equations were established. CONCLUSIONS: Muscle ultrasound is a practical and reproducible method that can be used as an imaging technique for examination of percent intramuscular fat. Future ultrasound studies are needed to establish equations for other muscle groups to enhance its use in both research and clinical settings.

Source: Muscle & Nerve

DOI: 10.1002/mus.24656

Authors: Hui‐Ju Young, Nathan T. Jenkins, Qun Zhao, Kevin K. Mccully

Institution: University of Georgia

Language: English

Topic: Body Composition Measurement Techniques

Subfield: Physiology (medical)

Field: Medicine

Domain: Health Sciences

SDG: Good health and well-being

Open Access status: green

Funders: National Institutes of Health, Eunice Kennedy Shriver National Institute of Child Health and Human Development