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

Table 1

Overview of the technical parameters of the X-ray tube, the applied dosage, the Lund-Mackay Score, and the mean evaluation score for all structures and the selected group of anatomical parameters for the two dosage groups.

	High dosage	Low dosage	value
Age in years			n.s.
Sex (female : male)	67 : 98	100 : 51	n.s.
Tube current in mA			0.000
Tube voltage in mA			0.000
Rotation angle	360° (100%)	180° (100%)	0.000
Computed tomography dosage index (CTDI) in mGy			0.000
Field of view (diameter in cm height in cm)
Lund-Mackay Score			0.558
Mean of anatomic structures			0.001
Selected mean of anatomic structures			0.033