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Fig. 2A —Polyp linear size versus volume derived from CT colonography (CTC).
This graph depicts polyps measuring less than 35 mm (the one polyp exceeding
this size is not shown for scaling purposes). Blue line represents fitted
curve for individual data points, V = (
/12) x
Db, where b = 2.81 (see text), and red line shows
volume-to-diameter relationship of hemisphere. For polyp diameters in 10- to
35-mm range, CTC-derived volume was usually less than hemispheric volume.
