Title:
【発明の名称】非対称検出システムを備えたらせんコンピュータ断層撮影法
Document Type and Number:
Japanese Patent JP2001506143
Kind Code:
A
Abstract:
A system for and method of generating a reconstructed tomographic image is described using an asymmetric detector array during a helical scan. An improved helical weighting system applies a helical halfscan technique to data collected by a symmetric portion of an asymmetric detector system and applies a helical fullscan technique to data collected by an asymmetric portion of the asymmetric detector system. The preferred system comprises an equi-angle interpolator, a streak artifact suppression filter, and an isocenter interpolator that preserve the distinction between even and odd data points in parallel beam projection data.
Inventors:
Dobbs, John, M.
Crawford, Carl Earl.
Loose, Christopher, Sea.
Crawford, Carl Earl.
Loose, Christopher, Sea.
Application Number:
JP52471698A
Publication Date:
May 15, 2001
Filing Date:
November 10, 1997
Export Citation:
Assignee:
Analogic Corporation
International Classes:
A61B6/03; (IPC1-7): A61B6/03
Attorney, Agent or Firm:
Masao Okabe (11 others)