[A comparison of radiation exposure of angiographers using an above-table or below-table image intensifier (author's...

Phantom measurements in the vicinity of an angiographic installation with the image intensifier below the table and subsequently with the intensifier above the table have shown that the former arrangement produces three times as much radiation to the head, gonads and leg during screening than when the intensifier is above the table. This has been confirmed in clinical practice during angioplastic procedures in other units. There is also a factor of 2.6 in favour of the above table intensifier applied to the lens of the eye of the investigator Radiation to the hand of the investigator is at least half with the above table arrangement.