1. Assessment of Gluteus Maximus Muscle Area With Different Image Analysis Programs 
Gary A. Wu, MS, Kath Bogie, DPhil 
Archives of Physical Medicine and Rehabilitation 
Volume 90, Issue 6, Pages (June 2009)
DOI: /j.apmr
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2. Fig 1
CT scan image locations used for assessments. (A), C1: between the second and third sacral notch; (B), C2: caudal head of the femur appears; (C), C3: greater trochanter is most prominent. NOTE. outlined dotted area is the gluteus maximus. Inset square 6 × 6cm2 on top left used as reference for VeVMD measurements.
Archives of Physical Medicine and Rehabilitation  , DOI: ( /j.apmr )
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3. Fig 2
Histograms showing differences in repeated measurements to the mean measurement for each muscle using (A) ImageJ and (B) VeVMD. — — — R1, – – – – R2, R3, —·—· R4.
Archives of Physical Medicine and Rehabilitation  , DOI: ( /j.apmr )
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4. Fig 3
Bland-Altman analysis for each rater between image analysis programs. The analysis compares the difference in measurement to the mean measurement. Y describes the trendline for each rater. Dotted lines signify 2 SDs 2*SD=6.51, 7.42, 5.73, 4.21, respectively. (A) •R1 (circle), (B) ■R2 (square), (C) ♦R3 (diamond), (D) ▲R4 (triangle).
Archives of Physical Medicine and Rehabilitation  , DOI: ( /j.apmr )
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5. Fig 4
Longitudinal study for 1 patient. (A) Main effects and (B) interaction plot for 4 raters and 2 different programs over a period of 24 months. •R1 (circle), ■R2 (square), ♦R3 (diamond), ▲R4 (triangle), ○Image J (empty circle), ☐VeVMD (empty square).
Archives of Physical Medicine and Rehabilitation  , DOI: ( /j.apmr )
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6. Fig 5
Interval plot of measurements using (A) ImageJ and (B) VeVMD. Interval bars represent 95% confidence interval for the mean. Measurements of gluteus maximus muscle at the slice where the caudal head of femur appears (C2) on the right side. Tables show significance of measurement differences between time points. Abbreviation: NS, not significant. *P<.05; **P<.01. •R1 (circle), ■R2 (square), ♦R3 (diamond), ▲R4 (triangle).
Archives of Physical Medicine and Rehabilitation  , DOI: ( /j.apmr )
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