Title:
SYSTEM FOR RECONSTRUCTING TOMOGRAM IMAGE OF OBJECT
Document Type and Number:
Japanese Patent JP3851675
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To improve an efficiency of generating image and to dispense with feathering algorithm by creating a projection data array by using data collected by a helical scan and further creating a weight data array to assign a predetermined weight.
SOLUTION: A detector array 16 is formed from two rows of detector elements 18, each detector element 18 outputs attenuation amount of x-ray beam passing through a patient 15 for medical care by way of electric signals. A data obtaining system 24 in a control mechanism 20 transfers analog data from the detector elements 18 to digital signals, an image reconstruction device 25 receives this data, performs high image reconstruction, and creates a weighted data array to assign a weight. Then, a tomogram image of an object is formed by generating a projection data matrix from collected data, confirming a supplementary spaced/extrapolatory plane which exists between a first and a last projection planes and is not perpendicular to the z-axis, and by creating a weighted projection data matrix by using the projection data matrix against the plane.
Inventors:
Jung fussy
Application Number:
JP31228395A
Publication Date:
November 29, 2006
Filing Date:
November 30, 1995
Export Citation:
Assignee:
GENERAL ELECTRIC COMPANY
International Classes:
A61B6/03; G06T1/00; G06T11/00; G06T15/08; G16H10/60; (IPC1-7): A61B6/03; A61B6/03; G06T1/00; G06T15/00; //G06F19/00
Domestic Patent References:
| JP4049952A | ||||
| JP6178771A |
Attorney, Agent or Firm:
Kenichi Matsumoto