Oh Sangho, Belohlavek Marek, Zhao Chunfeng, Osamura Naoki, Zobitz Mark E, An Kai-Nan, Amadio Peter C
Biomechanics Laboratory, Division of Orthopedic Research, Mayo Clinic, 200 First St SW, Rochester, MN 55905 USA.
J Ultrasound Med. 2007 Feb;26(2):149-55. doi: 10.7863/jum.2007.26.2.149.
The subsynovial connective tissue (SSCT) is the most characteristic structure in the carpal tunnel and is substantially affected in cases of carpal tunnel syndrome. We investigated the usefulness of Doppler sonography for measuring velocity differences between the flexor tendon and its associated SSCT in the carpal tunnel of cadaver hands.
Six human cadaver wrists were used in this study (mean age of death, 82.2 years). The velocity difference between the middle finger flexor digitorum superficialis tendon and its corresponding SSCT was measured on a sonography machine equipped with a fingertip 13-MHz linear probe.
At tendon velocities of greater than 2.5 cm/s, the tendon velocity was significantly greater than the SSCT velocity (P < .05). At less than 2.5 cm/s, there was no significant difference between tendon and SSCT velocities.
Color Doppler imaging can identify and track SSCT motion separately from that of its associated tendons. Analysis of SSCT motion characteristics by color Doppler imaging may be useful for studying its function clinically.
滑膜下结缔组织（SSCT）是腕管中最具特征性的结构，在腕管综合征病例中会受到显著影响。我们研究了多普勒超声在测量尸体手部腕管中屈肌腱与其相关SSCT之间速度差异方面的实用性。
本研究使用了6具人类尸体手腕（平均死亡年龄82.2岁）。在配备指尖13MHz线性探头的超声检查仪上测量示指浅屈肌腱与其相应SSCT之间的速度差异。
当肌腱速度大于2.5cm/s时，肌腱速度显著大于SSCT速度（P<.05）。当速度小于2.5cm/s时，肌腱和SSCT速度之间无显著差异。
彩色多普勒成像可以将SSCT的运动与其相关肌腱的运动分开识别和追踪。通过彩色多普勒成像分析SSCT的运动特征可能有助于临床研究其功能。
