Method for obtaining optimized computed tomography images from a

Details Method for obtaining optimized computed tomography images from a Method for obtaining optimized computed tomography images from a

1997-01-08

1998-06-09

Porta, David P.

X-ray or gamma ray systems or devices

Specific application

Computerized tomography

378 8, 378 16, A61B 603

Patent

active

057647216

ABSTRACT:
An apparatus and method for optimizing computer tomography images obtained from any of a number of different standard computer tomography scanning devices. The apparatus and method incorporate computer-aided design data for an object being scanned into a system for establishing nominal scanning beam intensities and nominal scanning detector sensitivities that ultimately compensate for non-anomalous variations in beam path characteristics. Particularly adapted for optimizing scan images on objects with large length-to-width ratios, the present invention identifies significant deviations from some normal baseline beam path in advance of a scan and modifies beam intensity and detector sensitivity to bring the projected beam into a nominal range. Thereafter, deviations from this referenced nominal beam can be better identified as anomalies within the object being scanned, that are of interest.

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