Table 6. Calculated diameters of the seven best fit circles, for each of the CT-based models: negative values in the last column represent the observed circles located toward the plantar aspect of the foot (see also Figure 5).

Variable	Crest medial	Crest lateral	Trochlea anterior	Trochlea ant.-cent.	Trochlea central	Trochlea post.-cent.	Trochlea posterior
STCT	39.5	33.8	85.3	70.7	59.4	76.2	85.2 (−)
CBCT	40.0	36.1	62.0	121.7	86.3	75.9	50.1 (−)
DECT	42.5	36.9	45.3	92.1	62.3	74.2	80.8 (−)

Measurements are in mm. STCT, standard CT; DECT, dual energy CT; CBCT, cone-beam CT; CT, computed tomography.