TY - JOUR
T1 - Speckle Tracking Ultrasound for Assessment of the Relative Motion of Flexor Tendon and Subsynovial Connective Tissue in the Human Carpal Tunnel
AU - Yoshii, Yuichi
AU - Villarraga, Hector R.
AU - Henderson, Jacqueline
AU - Zhao, Chunfeng
AU - An, Kai Nan
AU - Amadio, Peter C.
N1 - Funding Information:
The project was supported by NIAMS Grant (AR49823) from NIH and CTSA Grant (RR024152) from NCRR. The authors would like to thank Mr. Stephen Cha for help with the statistical analysis.
PY - 2009/12
Y1 - 2009/12
N2 - 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]).
AB - 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]).
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U2 - 10.1016/j.ultrasmedbio.2009.07.004
DO - 10.1016/j.ultrasmedbio.2009.07.004
M3 - Article
C2 - 19828231
AN - SCOPUS:71749096134
SN - 0301-5629
VL - 35
SP - 1973
EP - 1981
JO - Ultrasound in Medicine and Biology
JF - Ultrasound in Medicine and Biology
IS - 12
ER -