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.

Date of Patent:
Jun. 21, 1994

Filed:

May. 18, 1993
Applicant:
Inventors:

Christopher Thompson, Montreal, Quebec, CA;

Irving Weinberg, Laurel, MD (US);

Frederick M Mako, Fairfax Station, VA (US);

Assignee:

Other;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01T / ;
U.S. Cl.
CPC ...
25036302 ; 25036303 ;
Abstract

The present invention is an apparatus for examining a body part of a patient. The apparatus is comprised of a first detector module for detecting radiotracer emissions from the body part and a second detector module for detecting radiotracer emissions from the body part. The first and second detector modules are disposed adjacent to each other with the body part disposed therebetween. The apparatus also comprises means for backprojecting detected coincident events with respect to the first and second detector modules onto a plurality of imaging planes between the first and second detecting modules. Preferably, the backprojecting means comprises means for defining a line between a point on the first sensor array and a point on the second sensor array associated with a coincident event and means for determining the intersection of the line with each imaging plane. Preferably, the apparatus also comprises means for determining the distance and angle between the first detector module and the second detector module.


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