Surgical results according to the diameter of the flap pedicle measured by 320MSCT (n=18) Diameter Surgery result p Completely live Caseation ± SD 1, 2 ± 0, 27 1, 46 ± 0, 4 0, 164 The rate of flap survival or necrosis in the group with small flap stem diameter and the group with large flap stem diameter was different but not statistically significant.