Egyptian Journal of Radiology and Nuclear Medicine

Table 2 Typical local CT DRL values (75th percentile) for common CT examinations in the study population

From: Assessment of diagnostic reference levels awareness and knowledge amongst CT radiographers

Study	Head	Chest	Abdomen/pelvic
Study	CTDI_vol/DLP	CTDI_vol/DLP	CTDI_vol/DLP
Adult
Adejoh et al. [16]	63/1431
Ekpo et al. [25]	61/1310	17/735	20/1486
Zira et al. [26]	67.9/-	18.83/-	19.20/-
Abdulkadir et al. [14]	60/1024	10/407	15/757
Children
Ekpo et al. [27]
Newborn	27/1040
1yr	37/988
5yr	48/1493
≥10yrs	54/1824

Note: Volume weighted computed tomography dose index (CTDI_vol in mGy) and dose length product (DLP in mGycm)

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