Methods and apparatus for scanning an object in a computed tomog

Details Methods and apparatus for scanning an object in a computed tomog Methods and apparatus for scanning an object in a computed tomog

1997-04-21

1999-01-26

Porta, David P.

X-ray or gamma ray systems or devices

Specific application

Computerized tomography

378 15, 378901, A61B 603

Patent

active

058645985

ABSTRACT:
The present invention, in one form, is a system for generating a high resolution image of an object from projection data acquired during a computed tomography scan. The system includes a gantry having an x-ray source which rotates around the object. The x-ray source emits an x-ray beam which is collimated with a collimator having a collimator aperture to define an x-ray beam width, or slice thickness. The projection data is reconstructed to generate image data for adjacent image slices. A deconvolution algorithm is applied to the image data to generate a deconvolved image having a finer, i.e., smaller, resolution than the collimator aperture.

REFERENCES:
patent: 5361291 (1994-11-01), Toth et al.
patent: 5546439 (1996-08-01), Hsieh

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