System and method of iterative image reconstruction for computed tomography

Patent

Description

A system and method include acquisition of projection data from a scanned object, the set of projection data comprising a plurality of projection measurements. The system and method also include calculation of a set of modified statistical weights from the projection data, wherein a respective modified statistical weight of the set of modified statistical weights comprises a deviation from an inverse variance of a corresponding projection measurement of the projection data. The system and method further include reconstruction of an image of the scanned object using the set of modified statistical weights as coefficients in an iterative reconstruction algorithm.

Attributes

Attribute NameValues
Title
  • System and method of iterative image reconstruction for computed tomography

Patent Number
  • US 9261467 B2

USPTO Link
Inventor
  • Jean-Baptiste Thibault

  • Xue Rui

  • Somesh Srivastava

  • Ken D. Sauer

  • Lin Fu

  • Charles A. Bouman

Inventor From Local Institution
  • Ken D. Sauer

Other Application
  • 13/918,215

Prior Publication Date
  • 2014-12-18

Prior Publication Number
  • US 20140369463 A1

Claims
  • 21

Cooperative Patent Classification codes
  • G01N 23/046 (20130101); A61B 6/032 (20130101); A61B 6/5205 (20130101); G06T 11/006 (20130101); G06T 2211/424 (20130101); G01N 2223/1016 (20130101); G01N 2223/419 (20130101)

International Patent Classification codes
  • G06K 9/00 (20060101); G01N 23/04 (20060101); A61B 6/03 (20060101); A61B 6/00 (20060101); G06T 11/00 (20060101)

Language
  • English

Date Issued
  • 2016-02-16

Publisher
  • U.S. Patent and Trademark Office

Assignee
  • General Electric Company (Schenectady, NY)

Record Visibility and Access Public
Content License
  • All rights reserved

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