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Method for Obtaining Optimized Computed Tomography Images from a Body of High Length-To-Width Ratio Using Computer Aided Design Information for the Body

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.

Patent Number: 
5,764,721
Date Of Issue: 
06/09/1998
Inventors: 

Glenn M. Light;Daniel Schneberk