Table 2. Data on the distributions of operator doses in microsieverts per procedure from cardiology studies reviewed.

Organ	No. of data sets	Min.	First quartile	Median	Mean	Third quartile	Max.
Eye	23	5	7.5	34	66	89	439
Thyroid	18	3.8	32	53	88	98	392
Hand	20	8	27	136	175	338	514
Leg (protective screen)	19	5	14	25	32	41	96