Abstract
Objectives-The aim of this study was to determine the intra- And inter-rater reliability of sonographic measurements of the median nerve cross-sectional area in individuals with carpal tunnel syndrome and healthy control participants. Methods-The median nerve cross-sectional area was evaluated by sonography in 18 participants with carpal tunnel syndrome (18 upper extremities) and 9 control participants (18 upper extremities) at 2 visits 1 week apart. Two examiners, both blinded to the presence or absence of carpal tunnel syndrome, captured independent sonograms of the median nerve at the levels of the carpal tunnel inlet, pronator quadratus, and mid-forearm. The cross-sectional area was later measured by each examiner independently. Each also traced images that were captured by the other examiner. Results-Both the intra- And inter-rater reliability rates were highest for images taken at the carpal tunnel inlet (radiologist, r = 0.86; sonographer, r = 0.87; inter-rater, r = 0.95; all P <.0001), whereas they was lowest for the pronator quadratus (r = 0.49, 0.29, and 0.72, respectively; allP<.0001). At the mid-forearm, the intra-rater reliability was lower for both the radiologist and sonographer, whereas the inter-rater reliability was relatively high (r = 0.54, 0.55, and 0.81; all P <.0001). Tracing of captured images by different examiners showed high concordance for the median cross-sectional area at the carpal tunnel inlet (r = 0.96-0.98; P <.0001). Conclusions-The highest intra- And inter-rater reliability was found at the carpal tunnel inlet. The results also demonstrate that tracing of the median nerve cross-sectional area from captured images by different examiners does not contribute significantly to measurement variability.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 2077-2088 |
| Number of pages | 12 |
| Journal | Journal of Ultrasound in Medicine |
| Volume | 34 |
| Issue number | 11 |
| DOIs | |
| State | Published - Nov 1 2015 |
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Keywords
- Carpal tunnel syndrome
- Cross-sectional area
- Median nerve
- Musculoskeletal ultrasound
- Reliability
- Sonography
ASJC Scopus subject areas
- Radiology Nuclear Medicine and imaging
- Radiological and Ultrasound Technology
Cite this
Reliability assessment of various sonographic techniques for evaluating carpal tunnel syndrome. / Junck, Anthony D.; Escobedo, Eva M; Lipa, Bethany M.; Cronan, Michael; Anthonisen, Colleen; Poltavskiy, Eduard; Bang, Heejung; Han, Jay J.
In: Journal of Ultrasound in Medicine, Vol. 34, No. 11, 01.11.2015, p. 2077-2088.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Reliability assessment of various sonographic techniques for evaluating carpal tunnel syndrome
AU - Junck, Anthony D.
AU - Escobedo, Eva M
AU - Lipa, Bethany M.
AU - Cronan, Michael
AU - Anthonisen, Colleen
AU - Poltavskiy, Eduard
AU - Bang, Heejung
AU - Han, Jay J.
PY - 2015/11/1
Y1 - 2015/11/1
N2 - Objectives-The aim of this study was to determine the intra- And inter-rater reliability of sonographic measurements of the median nerve cross-sectional area in individuals with carpal tunnel syndrome and healthy control participants. Methods-The median nerve cross-sectional area was evaluated by sonography in 18 participants with carpal tunnel syndrome (18 upper extremities) and 9 control participants (18 upper extremities) at 2 visits 1 week apart. Two examiners, both blinded to the presence or absence of carpal tunnel syndrome, captured independent sonograms of the median nerve at the levels of the carpal tunnel inlet, pronator quadratus, and mid-forearm. The cross-sectional area was later measured by each examiner independently. Each also traced images that were captured by the other examiner. Results-Both the intra- And inter-rater reliability rates were highest for images taken at the carpal tunnel inlet (radiologist, r = 0.86; sonographer, r = 0.87; inter-rater, r = 0.95; all P <.0001), whereas they was lowest for the pronator quadratus (r = 0.49, 0.29, and 0.72, respectively; allP<.0001). At the mid-forearm, the intra-rater reliability was lower for both the radiologist and sonographer, whereas the inter-rater reliability was relatively high (r = 0.54, 0.55, and 0.81; all P <.0001). Tracing of captured images by different examiners showed high concordance for the median cross-sectional area at the carpal tunnel inlet (r = 0.96-0.98; P <.0001). Conclusions-The highest intra- And inter-rater reliability was found at the carpal tunnel inlet. The results also demonstrate that tracing of the median nerve cross-sectional area from captured images by different examiners does not contribute significantly to measurement variability.
AB - Objectives-The aim of this study was to determine the intra- And inter-rater reliability of sonographic measurements of the median nerve cross-sectional area in individuals with carpal tunnel syndrome and healthy control participants. Methods-The median nerve cross-sectional area was evaluated by sonography in 18 participants with carpal tunnel syndrome (18 upper extremities) and 9 control participants (18 upper extremities) at 2 visits 1 week apart. Two examiners, both blinded to the presence or absence of carpal tunnel syndrome, captured independent sonograms of the median nerve at the levels of the carpal tunnel inlet, pronator quadratus, and mid-forearm. The cross-sectional area was later measured by each examiner independently. Each also traced images that were captured by the other examiner. Results-Both the intra- And inter-rater reliability rates were highest for images taken at the carpal tunnel inlet (radiologist, r = 0.86; sonographer, r = 0.87; inter-rater, r = 0.95; all P <.0001), whereas they was lowest for the pronator quadratus (r = 0.49, 0.29, and 0.72, respectively; allP<.0001). At the mid-forearm, the intra-rater reliability was lower for both the radiologist and sonographer, whereas the inter-rater reliability was relatively high (r = 0.54, 0.55, and 0.81; all P <.0001). Tracing of captured images by different examiners showed high concordance for the median cross-sectional area at the carpal tunnel inlet (r = 0.96-0.98; P <.0001). Conclusions-The highest intra- And inter-rater reliability was found at the carpal tunnel inlet. The results also demonstrate that tracing of the median nerve cross-sectional area from captured images by different examiners does not contribute significantly to measurement variability.
KW - Carpal tunnel syndrome
KW - Cross-sectional area
KW - Median nerve
KW - Musculoskeletal ultrasound
KW - Reliability
KW - Sonography
UR - http://www.scopus.com/inward/record.url?scp=84944891569&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84944891569&partnerID=8YFLogxK
U2 - 10.7863/ultra.15.01069
DO - 10.7863/ultra.15.01069
M3 - Article
C2 - 26453123
AN - SCOPUS:84944891569
VL - 34
SP - 2077
EP - 2088
JO - Journal of Ultrasound in Medicine
JF - Journal of Ultrasound in Medicine
SN - 0278-4297
IS - 11
ER -