The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 12, 2000
Filed:
Jun. 11, 1998
Applicant:
Inventor:
Ching-Ming Lai, Wakefield, MA (US);
Assignee:
Analogic Corporation, Peabody, MA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61B / ;
U.S. Cl.
CPC ...
378 19 ; 378-4 ; 378 14 ; 378 15 ;
Abstract
In an improved method and apparatus for cone-beam reconstruction, an improved detector array is provided in an asymmetric shape with respect to the translation axis. In a first embodiment, a standard symmetric array is rotated by a tilt angle .alpha. about the beam axis. In a second embodiment, the array is formed to have a substantially helical contour. In this manner, efficient use of detector elements is achieved, system pitch is increased, and image quality is enhanced.