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. Author manuscript; available in PMC: 2016 Mar 1.
Published in final edited form as: J Magn Reson Imaging. 2014 Jun 17;41(3):586–600. doi: 10.1002/jmri.24677

Fig. 5.

Fig. 5

Representative T2 (upper row of left column) and T1ρ (lower row of left column) maps. T2 map constructed from a series of T2-weighted images obtained with parameters TR/TE = 4000 ms/15 ms, FOV = 7 cm × 7 cm, slice thickness = 3 mm, matrix = 512 × 128, NEX = 1. T1ρ map constructed from a series of T1ρ-weighted images of the same slice obtained with parameters TR/TE+TSL = 4000 ms/17 ms; FOV = 7 cm × 7 cm, slice thickness = 3 mm, matrix = 512 × 128, NEX = 1, and ω1 = 500 Hz. The color bar scale shows the relaxation time values distribution ranging from 0 ms to 100 ms; (right column) comparison of T2 and T1ρ relaxation times as a function of various clinical grades of OA cartilage (early OA, moderate OA, and advanced OA). Figure reprinted from reference (52), with permission.