Anatomic features of the cranial aperture of the optic canal in children: a radiologic study

Evaluation of the Cranial Aperture of the Optic Canal on Cone-Beam Computed Tomography Images and its Clinical Implications for the Transcranial Approaches

“…They found that the angle in adolescents was almost half that of infancy. 22 Our angle measurement is consistent with this pattern of decrease in childhood. In this study, no significant difference was detected between right and left angle measurements, similar to Ten et al 22 We observed that Ang-in-SP was greater in males than that in females, whereas Ang-in-AP was similar in both sexes.…”

“…1,22,[31][32][33][34][35][36][37][38][39][40][41] Prado et al 36 measured the aperture diameter in fetuses (right: 3.76 mm, left: 3.79 mm), children (right: 4.67 mm, left: 4.72 mm), and adults (right: 5.24 mm, left: 5.43 mm), and declared that the width increased from fetal period to adult period. In addition, Ten et al 22 measured the aperture diameters (width: 6.12 ± 0.84 mm, height: 4.35 ± 0.64 mm) in pediatric subjects aged between 1 and 20 years, and observed that its diameters did not alter from the prepubescent period. In this study, a significant difference was not found between right and left diameter measurements, similar to most studies in the literature.…”

“…The fetal work of Beger 23 showed that the width in oval cases 81.97 ± 0.61 mm) was greater than that in round cases (1.48 ± 0.34 mm). The pediatric study of Ten et al 22 displayed that apart from Dis-to-LB, the parameters altered relative to the aperture shape.…”

“…lww.com/SCS/D892) (mean data range for the aperture height: 3.60-5.17 mm, and for the aperture width: 4.59-7.38 mm). 1,22,[31][32][33][34][35][36][37][38][39][40][41] Prado et al 36 measured the aperture diameter in fetuses (right: 3.76 mm, left: 3.79 mm), children (right: 4.67 mm, left: 4.72 mm), and adults (right: 5.24 mm, left: 5.43 mm), and declared that the width increased from fetal period to adult period. In addition, Ten et al 22 measured the aperture diameters (width: 6.12 ± 0.84 mm, height: 4.35 ± 0.64 mm) in pediatric subjects aged between 1 and 20 years, and observed that its diameters did not alter from the prepubescent period.…”

“…The exclusion criteria in the population were: (a) pediatric subjects (age < 18 years), and (b) CBCT images with distortion, magnification, artifact, and foreign body in the study area. Considering the study of Ten et al, 22 the following parameters were determined: The height of CA: the vertical diameter of the aperture in the coronal plane (Fig. 1).…”