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. Author manuscript; available in PMC: 2010 Nov 19.
Published in final edited form as: Magn Reson Med. 2010 May;63(5):1193–1200. doi: 10.1002/mrm.22362

FIG. 4.

FIG. 4

Median T2 values (±standard deviation) in each Pfirrmann grade are illustrated in the graph (n = 9 patients, 44 discs). The plot is limited because it ignores differences between lumbar regions and is unable to properly account for the within- and between-subject structure of the data. However, the plot does provide an illustration of the behavior of T2 values with respect to Pfirrmann grade. Groups that are significantly different (P < 0.05) are categorized by different colors, as determined from the linear regression model.