Foetal Radiation Dose and Risk from Diagnostic Radiology Procedures: A Multinational Study

Table 1

Summary of maternal and foetal parameters.

Parameter	Range	Mean
Maternal height (m)	1.4–1.8	1.6
Maternal weight (kg)	40.9–119.8	68.7
Maternal AP thickness (cm)	16.5–31.0	23.7
Maternal age (years)	20–39	30.9
GA (weeks)	2–38	19.2
Foetal depth (cm)*	4.9–9.3	7.1

*If the foetal depth is not provided, a mean value of 9 cm is used [9].