Birelli Beatriz, Oliveira Mauricio, Santos Allan de Oliveira, Manso Willians, Vicente Andreia, Etchebehere Elba
Division of Nuclear Medicine, Campinas State University, Campinas, SP, Brazil.
Brazilian Confederation of Aquatic Sports (CBDA), São Paulo, SP, Brazil.
Radiol Bras. 2019 Mar-Apr;52(2):92-96. doi: 10.1590/0100-3984.2018.0006.
The purpose of this study was to evaluate the effects of electrical muscle stimulation (EMS) on muscles, using Tc-sestamibi SPECT/CT.
We prospectively enrolled 20 consecutive male professional water polo players. The mean age was 25 years (range, 18-36 years). All athletes underwent Tc-sestamibi SPECT/CT of the thigh (rectus femoris and vastus medialis muscle groups) before and after EMS. Images were quantified to identify increases in perfusion after EMS.
Before EMS, there were no significant differences between the right and left thigh (rectus femoris and vastus medialis muscles) in terms of perfusion ( = 0.4). However, the comparison between the pre- and post-EMS analyses of the same muscle groups showed significant differences in radiotracer uptake ( < 0.001), with a mean increase in perfusion of 128% for the rectus femoris muscle group (95% CI: 0.86-1.61) and 118% for the vastus medialis muscle group (95% CI: 0.96-1.79).
Tc-sestamibi SPECT/CT is an objective means of evaluating blood flow in muscles submitted to EMS, which appears to promote significant increases in such blood flow.
本研究旨在利用锝- sestamibi单光子发射计算机断层扫描/计算机断层扫描（Tc-sestamibi SPECT/CT）评估电肌肉刺激（EMS）对肌肉的影响。
我们前瞻性地连续招募了20名男性职业水球运动员。平均年龄为25岁（范围18 - 36岁）。所有运动员在接受EMS前后均接受了大腿（股直肌和股内侧肌组）的Tc-sestamibi SPECT/CT检查。对图像进行量化以确定EMS后灌注的增加情况。
在EMS之前，左右大腿（股直肌和股内侧肌）在灌注方面无显著差异（P = 0.4）。然而，同一肌肉组EMS前后分析的比较显示放射性示踪剂摄取存在显著差异（P < 0.001），股直肌组灌注平均增加128%（95%置信区间：0.86 - 1.61），股内侧肌组灌注平均增加118%（95%置信区间：0.96 - 1.79）。
Tc-sestamibi SPECT/CT是评估接受EMS的肌肉血流的一种客观方法，EMS似乎能显著促进此类血流增加。
