1. Vastus lateralis/vastus medialis cross-sectional area ratio impacts presence and degree of knee joint abnormalities and cartilage T2 determined with 3T MRI – an analysis from the incidence cohort of the Osteoarthritis Initiative 
J. Pan, C. Stehling, C. Muller-Hocker, B.J. Schwaiger, J. Lynch, C.E. McCulloch, M.C. Nevitt, T.M. Link 
Osteoarthritis and Cartilage 
Volume 19, Issue 1, Pages (January 2011)
DOI: /j.joca
Copyright © 2010 Osteoarthritis Research Society International Terms and Conditions

2. Fig. 1
Representative images of subjects with significant difference in vastus lateralis volume/vastus medialis CSA ratio showing difference in muscle size (A, B), cartilage T2 values (C, D, mean T2 values of 43.4 and 45.8 respectively), and MR morphological abnormalities (E, F). A, C, and E are from a subject with high VL/VM ratio (1.72) whereas B, D, and F are from a subject with low VL/VM ratio (0.58). Note that relatively normal morphology is demonstrated in E, whereas tear of the posterior horn of the lateral meniscus and full-thickness tear of the lateral femoral condyle cartilage are observed in F. ROI 1 and 2 represent CSA of vastus lateralis and medialis of the subject with high VL/VM ratio ( and 69.50mm2 respectively). ROI 3 and 4 represent CSA of vastus lateralis and medialis of the subject with low VL/VM ratio (30.45 and 52.46mm2 respectively).
Osteoarthritis and Cartilage  , 65-73DOI: ( /j.joca )
Copyright © 2010 Osteoarthritis Research Society International Terms and Conditions