Establishment of local diagnostic reference levels for common adult CT examinations: a multicenter survey in Addis Ababa

Table 1 CT scanners characteristic

Scanners	Manufacturer	Model	No of slice	Year of installation
1	GE	OPTIMA CT660	64	2018
2	Neusoft	Neuviz16	64	2016
3	Philips	Brilliance CT 64	64	2017
4	Siemens	Somatom Emotions	16	2015
5	Philips	Brilliance CT 64	64	2016
6	Siemens	Somatom Emotions	16	2017
7	Philips	Brilliance CT 64	64	2013
8	GE	OPTIMA CT660	64	2016
9	Siemens	Somatom Go	128	2015

Data were collected from 282 patients (158 males and 124 females), 276 patients (136 males and 140 females), and 280 patients (137 males and 143 females) for head, chest, and AP, respectively (see Table 2). For chest and AP, the average weight was 61.78 kg (4.40) and 60.74 kg (3.80), respectively

ISSN: 1471-2342