Measurement of intramuscular fat by muscle echo intensity.
Measurement of intramuscular fat by muscle echo intensity.
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DOI：
10.1002/mus.24656
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发表时间：
2015-12
期刊：
影响因子：
3.4
通讯作者：
Mccully KK
中科院分区：
文献类型：
--
作者：
Young HJ;Jenkins NT;Zhao Q;Mccully KK
比较超声回波强度（EI）与高分辨率T1加权MRI，并建立校准方程，以估计EI的肌内脂肪百分比。31名参与者接受了4块肌肉的超声和MRI测试：股直肌（RF）、股二头肌（BF）、胫骨前肌（TA）和内侧腓肠肌（MG）。校正皮下脂肪厚度后，MRI脂肪百分比和肌肉EI之间存在强相关性（RF中r = 0.91，BF中r = 0.80，TA中r = 0.80，MG中r = 0.76）。建立了三种类型的校准方程。肌肉超声是一种实用且可重复的方法，可用作检查肌内脂肪百分比的成像技术。未来的超声研究需要建立其他肌肉群的方程，以提高其在研究和临床环境中的使用。
To compare ultrasound echo intensity (EI) to high-resolution T1-weighted MRI and to establish calibration equations to estimate percent intramuscular fat from EI. 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). 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. 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.