System for reduction of exposure to X-ray radiation

Details System for reduction of exposure to X-ray radiation System for reduction of exposure to X-ray radiation

2011-07-19

2011-07-19

Kiknadze, Irakli (Department: 2882)

X-ray or gamma ray systems or devices

Electronic circuit

With display or signaling

C378S151000, C378S152000, C378S153000

Reexamination Certificate

active

07983391

ABSTRACT:
To reduce X-ray exposure, an area of interest is selected in the image. The image of the selected area is updated frequently, comparable to rate of updates used today for the whole image. The rest of the image is updated at a significantly lower rate. Since the area of interest normally is a small part of the overall area, the total exposure is reduced significantly. A movable X-ray shield placed near the X-ray source blocks the radiation from areas outside the area of interest. The shield automatically retracts when the complete image is updated. The area of interest can be selected by the user or automatically selected based on activity in the image.

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