International Journal of Otolaryngology / 2017 / Article / Tab 2

Research Article

Reduction of Radiation Dosage in Visualization of Paranasal Sinuses in Daily Routine

Table 2

Overview of the frequencies in percent of the evaluation of the visibility of the different anatomical structures in the two groups (high dosage versus low dosage) with the corresponding values (values marked with an asterisk are highly significant).

High dosage ()Low dosage () value
ExcellentWellPoorNot evaluableExcellentWellPoorNot evaluable

Maxillary sinus (lateral wall)79.615.54.90.080.715.34.00.00.791
Uncinate process66.918.813.40.967.411.114.86.70.022
Inferior turbinate (os turbinale)87.87.04.30.987.07.34.31.30.917
Infraorbital nerve canal54.532.412.70.359.329.311.30.00.682
Lamina papyracea (infundibulum)85.89.15.20.093.75.01.30.00.119
Anterior ethmoidal artery canal84.211.53.60.691.77.70.70.00.107
Lamina papyracea (ant. ethm. art.)95.21.83.00.097.02.30.70.00.248
Lateral lamella olfactory fossa86.410.03.60.093.33.73.00.00.148
Cribriform plate94.427.021.81.873.018.78.30.00.000
Posterior ethmoidal artery canal67.915.810.06.475.713.08.72.70.238
Optical nerve93.34.32.40.098.31.30.30.00.176
Vidian nerve94.22.13.00.697.72.30.00.00.211
Maxillary nerve95.42.42.10.099.00.70.30.00.320
Carotid artery83.012.83.50.697.71.70.70.00.003
Nasolacrimal duct98.51.50.00.099.30.70.00.00.406
Frontal sinus98.21.20.60.099.30.70.00.00.386