scholarly journals Dehydration affects spinal cord cross-sectional area measurement on MRI in healthy subjects

Spinal Cord ◽  
2014 ◽  
Vol 52 (8) ◽  
pp. 616-620 ◽  
Author(s):  
C Wang ◽  
R C Tam ◽  
E Mackie ◽  
D K B Li ◽  
A L Traboulsee
Keyword(s):  
Spinal Cord ◽  
Healthy Subjects ◽  
Cross Sectional Area ◽  
Area Measurement ◽  
Sectional Area ◽  
Cross Sectional

Cannulation and continuous cross-sectional area measurement of small blood vessels

1990 ◽  
Vol 24 (3) ◽  
pp. 219-227 ◽  
Author(s):  
Ed Vanbavel ◽  
Trudi Mooij ◽  
Maurice J.M.M. Giezeman ◽  
Jos A.E. Spaan
Keyword(s):  
Blood Vessels ◽  
Cross Sectional Area ◽  
Area Measurement ◽  
Sectional Area ◽  
Cross Sectional

scholarly journals Bifid Median Nerve in Carpal Tunnel Syndrome: Assessment with US Cross-sectional Area Measurement

Radiology ◽  
2011 ◽  
Vol 259 (3) ◽  
pp. 808-815 ◽  
Author(s):  
Andrea S. Klauser ◽  
Ethan J. Halpern ◽  
Ralph Faschingbauer ◽  
Florian Guerra ◽  
Carlo Martinoli ◽  
...  
Keyword(s):  
Carpal Tunnel Syndrome ◽  
Median Nerve ◽  
Carpal Tunnel ◽  
Cross Sectional Area ◽  
Area Measurement ◽  
Sectional Area ◽  
Cross Sectional ◽  
Tunnel Syndrome

Reliability of side-to-side ultrasound cross-sectional area measurements of lower extremity nerves in healthy subjects

2012 ◽  
Vol 46 (5) ◽  
pp. 717-722 ◽  
Author(s):  
Alberto Tagliafico ◽  
Angela Cadoni ◽  
Erica Fisci ◽  
Bianca Bignotti ◽  
Luca Padua ◽  
...  
Keyword(s):  
Lower Extremity ◽  
Healthy Subjects ◽  
Cross Sectional Area ◽  
Sectional Area ◽  
Cross Sectional

Intra- and inter-rater reliability in the cross-sectional area of feline lumbar epaxial musculature evaluated via abdominal CT scan

2019 ◽  
Vol 22 (8) ◽  
pp. 721-728
Author(s):  
Laura H Rayhel ◽  
Jessica M Quimby ◽  
Eric M Green ◽  
Valerie J Parker ◽  
Shasha Bai
Keyword(s):  
Ct Scan ◽  
Muscle Mass ◽  
Ct Images ◽  
Cross Sectional Area ◽  
Area Measurement ◽  
Thoracic Vertebrae ◽  
Sectional Area ◽  
Cross Sectional ◽  
Rater Reliability ◽  
Epaxial Muscle

Objectives The aim of this study was to evaluate the intra- and inter-rater reliability of epaxial muscle cross-sectional area measurement on feline CT images and to determine the relationship between normalized epaxial muscle area (EMA) and subjective muscle condition score (MCS). Methods Feline transverse CT images including the junction of the 13th thoracic vertebrae/13th rib head were retrospectively reviewed. Right and left epaxial muscle circumference and vertebral body height were measured and an average normalized EMA (ratio of epaxial area:vertebral height) was calculated for each image. Measurements were performed by three individuals blinded to the clinical data and were repeated 1 month later. Intra- and inter-rater reliability of EMA was assessed with concordance correlation coefficient (CCC), and Bland–Altman analysis was performed to assess bias and limits of agreement (LoA) between and within observers at different time points. In cats for which MCS data were available, EMA was compared between differing MCSs via the Kruskal–Wallis test, with Bonferroni-corrected Wilcoxon rank-sum post-hoc analysis. Results In total, 101 CT scans met the inclusion criteria for reliability analysis, 29 of which had muscle condition information available for analysis. Intra-rater EMA CCC ranged from 0.84 to 0.99 with minimal bias (range –0.16 to 0.08) and narrow LoA. Inter-rater EMA CCC ranged from 0.87 to 0.94, bias was larger (range –0.46 to 0.66) and LoA were wider when assessed between observers. Median EMA was significantly lower in cats with severe muscle atrophy (2.76, range 1.28–3.96) than in all other MCS groups ( P <0.0001 for all comparisons). Conclusions and relevance Measurement of EMA on CT showed strong intra-rater reliability, and median EMA measurements were significantly lower in cats with severe muscle wasting, as assessed on physical examination. Further studies correlating EMA to lean muscle mass in cats are needed to determine whether this method may be useful to quantify muscle mass in patients undergoing a CT scan.

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