Exposure Levels of Adult Patients during Radiographic Examinations: Sinuses and Coastal Grill Cases at the Ngaoundere Regional Hospital, Cameroon

Table 3

Technical parameters used.

Radiography	Projection	m	mAs	DFF	FSD	ESD		quartile	SD
						Min	Max
Sinuses	PA	65-80; 66.1±1.5	32-50; 41.9±2.4	1.3-1.5; 1.2±0.04	1.0-1.3; 1.1±0.04	5.8	12.2	7.02	0.2
Coastal grill	AP	65-75; 66.7±2.0	40-55; 43.2±2.1	1.5-1.8; 1.6±0.07	1.2-1.5; 1.3±0.06	4.98	7.67	5.27	0.1

kV: kilovolt, mAs: milliampere second, FFD: focus-film distance, FSD: focus-skin distance, ESD: entrance skin dose, SD: standard deviation.