Estudo comparativo do estágio de maturação da sutura palatina mediana definido em diferentes cortes axiais de tomografia computadorizada

Abstract

The aim of this study was to evaluate the agreement of midpalatal suture (MPS) stage of maturation at three different axial slices of the palate using computed tomography (CT scans). Two hundred and ten CT scans of patients (114 male and 96 female) aged between 7 and 30 years old were used. The classification of MPS stage of maturation was performed using the methodology proposed by Angelieri et al. (2013) in three axial slices. The first slice was positioned in the center of the palate (middle slice) and the others were positioned parallel to the first slice: one 0.6 mm above (upper slice) and another 0.6 mm below (lower slice). To verify the agreement between the MPS stages of maturation, a weighted kappa test was used. The agreement between the stages attributed to middle and lower slice, middle and upper slice and upper and lower slice were, respectively: 78.1% (kappap = 0.787), 80.4% (kappap = 0.824) and 63.8% (kappap = 0.664). The results showed that the MPS stage of maturation agreement at the three axial slices occurred in 61.4% of the sample. When grouping the stages that suggest the same clinical conduct agreement occurred in 73.8% of the sample.