Digital x-ray system

Details Digital x-ray system Digital x-ray system

1984-07-25

1986-02-25

Hix, L. T.

Communications: electrical

Audible indication

Percussion-type sound producer

358167, H03M 108, H03M 170

Patent

active

045730350

ABSTRACT:
A radiology system for storing, processing, and displaying two-dimensional image data derived from an x-ray source. A visible x-ray image or sequence of images is scanned to produce a signal representing the intensity of the images, and this signal is encoded to provide a data compressed digital signal which is stored and processed to yield displayed images of enhanced quality in which image sequence and processing intervals may be in real-time. The encoded signal is of a format to reduce the amount of data stored in memory, and temporal and spatial averaging and variable length coding are employed for efficient image data processing. Apparatus is provided for defining a mask image, from which other image data is subtracted to yield an enhanced image. The system can include means for providing a control signal representing the level of radiation absorption by a body, and adjusting the intensity of x-ray radiation in accordance with the absorption level.

REFERENCES:
patent: 3585631 (1971-06-01), McCown
patent: 4136363 (1979-01-01), Saran
patent: 4204226 (1980-05-01), Mistretta et al.
patent: 4335311 (1982-06-01), Lutz et al.
patent: 4346409 (1982-08-01), Ishida et al.
patent: 4367490 (1983-01-01), Riederer
patent: 4458267 (1984-07-01), Dolazza

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