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

Table 5

Foetal absorbed dose and risks of childhood cancer and hereditary effects for some common diagnostic radiology examinations.

Projection and examination		Foetal dose range (mGy)	Risk of childhood cancer	Risk of hereditary effects
AP	Abdomen	0.05–3.74	1 in 250000–1 in 3300	1 in 3300000–1 in 50000
AP	Chest	<0.001–0.001	<1 in 12500000–1 in 1250000	<1 in 200000000–1 20000000
LAT	Chest	<0.001–0.01	<1 in 12500000 to 1 in 1250000	<1 in 200000000–1 20000000
PA	Chest	<0.001–0.01	<1 in 12500000 to 1 in 1250000	<1 in 200000000–1 20000000
PA	Colon	1.66-2.20	1 in 10000–1 in 5000	1 in 125000–1 in 100000
	Hip joint	0.01–0.05	1 in 1250000–250000	1 in 20000000–1 in 3300000
AP	Lumbar spine	0.11–4.42	1 in 110000–1 in 2500	1 in 1700000–1 in 50000
PA	Lumbar spine	0.02–0.80	1 in 500000–1 in 17000	1 in 10000000–1 in 250000
LAT	Lumbar spine	0.03–3.89	1 in 500000–1 in 3300	1 in 5000000–1 in 50000
	Lumbosacral joint	0.02–0.80	1 in 500000–1 in 17000	1 in 10000000–1 in 250000
AP	Pelvis	0.18–1.07	1 in 100000–1 in 11000	1 in 1100000–1 in 200000
AP	Stomach	0.01–1.33	1 in 1250000–1 in 10000	1 in 20000000–1 in 140000
LAO	Stomach	<0.01–0.01	<1 in 1250000–1 in 1250000	<1 in 20000000–1 in 20000000
LAT	Stomach	<0.01–0.01	<1 in 1250000–1 in 1250000	<1 in 20000000–1 in 20000000
LPO	Stomach	<0.01–0.01	<1 in 1250000–1 in 1250000	<1 in 20000000–1 in 20000000
PA	Stomach	<0.01–0.01	<1 in 1250000–1 in 1250000	<1 in 20000000–1 in 20000000
AP	Thoracic Spine	<0.001–0.85	1 in 12500000–1 in 14000	<1 in 200000000–1 in 250000
LAT	Thoracic Spine	<0.001	<1 in 12500000	<1 in 200000000
	Barium enema	1.14–16.27	1 in 11000–1 in 1000	1 in 170000–1 in 12500
	Barium meal	0.08–0.19	1 in 170000–1 in 50000	1 in 2500000–1 in 1000000
	Cholangiography	1.57–6.65	1 in 10000–1 in 2000	1 in 125000–1 in 33000
	Barium follow through	0.17–0.64	1 in 100000–1 in 20000	1 in 1100000–1 in 330000
	IVU	0.05–1.33	1 in 250000–1 in 10000	1 in 3300000–1 in 140000
	KUB	0.01–0.59	1 in 1250000– 1 in 20000	1 in 20000000–1 in 330000
AP	Urinary bladder	1.49	1 in 10000	1 in 140000
	Nephrostomy	<0.01–0.37	1 in 1250000–33000	<1 in 20000000–1 in 500000
	CT-Abdomen	1.04–3.65	1 in 12500–1 in 3300	1 in 200000–1 in 50000
	CT-Chest	0.02	1 in 500000	1 in 10000000
	CT-Lumbar spine	13.61–21.85	1 in 1000–1 in 500	1 in 14000–1 in 10000
	CT-Pelvis	1.32–17.06	1 in 10000–1 in 1000	1 in 140000–1 in 11000