Thursday, April 5, 2012
Radiography and MRI for Assessment of Acromial Shape
Using 3-dimensional models constructed from MR images as their gold standard, Mayerhoefer et al compared outlet view radiographs and MRI for assessment of the shape of the acromion (types 1-3). They found that MRI had good correlation (K=0.66) to the 3-dimensional model when two oblique coronal slices were used in conjunction: A slice 4 mm medial to the lateral margin of the acromion (1) and a slice lateral to the acromioclavicular joint (2). Outlet view radiographs had moderate correlation to the shape of the acromion (K=0.55), which was still better than any single MRI slice.
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