Digitally aided microfluoroscopy and fluorospot system and metho

Details Digitally aided microfluoroscopy and fluorospot system and metho Digitally aided microfluoroscopy and fluorospot system and metho

1993-04-30

1995-02-28

Porta, David P.

X-ray or gamma ray systems or devices

Electronic circuit

With display or signaling

378 982, 378151, H05G 164

Patent

active

053944550

ABSTRACT:
An improvement is made in a high resolution clinical fluoroscopic system by utilizing a beam splitter for selectively directing a fluoroscopic image of an X-ray pattern transmitted through a patient to either a low resolution or high resolution television channel. The low resolution channel operates a low magnification level to provide a macroscopic view of an object of interest in order to orient the patient and object of interest within the center of view. Thereafter, the beam splitter is activated to redirect the fluoroscopic image to a zoom lens which magnifies the image. The magnified image is then scanned by a sensitive CCD-type camera to alternatively produce through the video processor a magnified view of the object of interest at variable magnification having submillimeter resolution. Collimation of the X-ray beam is coordinated with the degree of magnification through the zoom lens to provide for contrast resolution without any substantial increase of the X-ray exposure levels.

REFERENCES:
patent: 5117446 (1992-05-01), Haaker et al.

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