Figure 5a: Intratendinous partial-thickness tear of the supraspinatus tendon in 45-year-old man. (a) Coronal oblique fat-saturated T1-weighted contrast-enhanced indirect MR arthrogram (1011/20) obtained with patient in the neutral position shows supraspinatus tendon (arrow) with normal signal intensity and without morphologic changes. (b) Fat-saturated T1-weighted contrast-enhanced indirect MR arthrogram (1011/20) obtained with patient in the ABER position demonstrates no surface abnormalities but depicts linear area of high signal intensity (arrow) within tendon and small space between fibers. Both readers correctly interpreted these signal intensity and morphologic alterations as indicative of an intratendinous partial-thickness tear.