Abstract
The objective of this study was to compare tissue Doppler imaging and speckle tracking
ultrasound to assess the relative motion of flexor tendon and surrounding subsynovial
connective tissue (SSCT). Twenty normal human wrists were imaged with an ultrasound
scanner. The two ultrasound methods measured the excursion and maximum velocity of
the tendon and SSCT while subjects gripped three different sized acrylic tubes and
these were correlated with tendon excursions estimated from finger joint angle changes.
The maximum velocity ratio (=SSCT/tendon velocity) and the shear index (=[(Tendon
excursion–SSCT excursion)/Tendon excursion]×100%) were calculated. The intraclass
correlation coefficient was higher for joint angle/speckle tracking tendon excursion
(0.642) than for joint angle/tissue Doppler excursion (0.377). The speckle tracking
method could also discriminate differences in maximum velocity ratio and shear index
for different tube sizes. We conclude that speckle tracking may be useful in assessing
the relative motion of tendon and SSCT. (E-mail: [email protected])
Key Words
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Article info
Publication history
Published online: October 15, 2009
Accepted:
July 23,
2009
Received in revised form:
July 10,
2009
Received:
December 5,
2008
Footnotes
Video Clips cited in this article can be found online at: http://www.umbjournal.org.
Identification
Copyright
© 2009 World Federation for Ultrasound in Medicine & Biology. Published by Elsevier Inc. All rights reserved.
