Medical imaging apparatus

Details Medical imaging apparatus Medical imaging apparatus

1989-08-30

1991-03-19

Fields, Carolyn E.

X-ray or gamma ray systems or devices

Electronic circuit

Exposure timer

358111, H05G 164

Patent

active

050017365

ABSTRACT:
An x-ray source having two levels of radiation is used to radiate a target and the x-ray image is displayed on an image intensifier. A video camera photographs the x-ray image and displays it on a monitor screen directly when the source is in a first low level mode of operation. When a selected image is identified, a control generator is activated which changes the mode of operation of the x-ray source to a higher level while at the same time inactivating the video camera for a period of time sufficient to allow the monitor screen to be cleared. The camera is then activated and at least one video frame of the high intensity x-ray image is stored in memory. The control generator also serves to synchronize the various activities of the components.

REFERENCES:
patent: 4380818 (1983-04-01), Pfeiler
patent: 4493096 (1985-01-01), Rieke
patent: 4503459 (1985-03-01), Haendle et al.
patent: 4658413 (1987-04-01), Nishioka et al.
patent: 4852139 (1989-07-01), Sandrik et al.

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