Optimisation of Radiation Exposure to Gastroenterologists and Patients during Therapeutic ERCP

Table 2

The mean and range of the exposure parameters for radiography and fluoroscopy for both patients groups.

Group	𝑛	Radiography		Fluoroscopy		Number. of radiographic; images	Procedure duration; (minutes)
	153	Tube voltage (kV)	Tube current-time product (mAs)	Tube voltage (kV)	Tube current-time product (mAs)	2.6 (1–6)	27 (15–55)
A	111	84; (70–100)	44; (12–141)	75; (52–110)	1.6; (0.4–3.1)	2.3; (1–5)	25; (15–50)
B	42	80; (70–104)	58; (10–171)	75; (55–110)	2.2; (1.3–3.1)	3.8; (1–6)	30; (20–55)