Method and apparatus for compensating for magnetic field during medical imaging

Patent metadata

Field	Value
Publication number	US-9186115-B2
Application number	US-201414314057-A
Country	US
Kind code	B2
Filing date	Jun 25, 2014
Priority date	Jul 1, 2013
Publication date	Nov 17, 2015
Grant date	Nov 17, 2015

Abstract

A method and apparatus for compensating for the presence of a magnetic field during medical imaging are disclosed. Gamma photons are acquired at a detector. An orientation of the detector (e.g., relative to the surface of the earth) corresponding to the acquisition is determined. Based on the determined detector orientation, one or more compensation value(s) are determined from a memory of a computer, e.g., based on interpolation, parametric computation, or a look-up table. Energy signal variation of a detected signal due to the detector orientation is compensated for by applying the determined compensation value.

First claim

What is claimed is:

1. A method of compensating for the presence of a magnetic field during medical imaging, the method comprising:
at a detector of a gamma camera, performing an acquisition of gamma photons, wherein the detector is mounted on a gantry;
determining a first orientation of the detector corresponding to the acquisition;
determining, from a memory of a computer, a compensation value based on the first orientation of the detector; and
compensating for energy sign…

Assignees

• Siemens Medical Solutions

Inventors

• Caruba James Frank

Classifications

• G01T1/1603

  Physics · mapped topic

• G01R33/025

  Physics · mapped topic

• G01T1/1647

  Physics · mapped topic

• G01R33/0076

  Physics · mapped topic

• G01R33/0082

  Physics · mapped topic