Patent Number: 7,535,227

Title: Method and apparatus for correcting distortion in MR images caused by metallic implants

Abstract: A technique for reconstructing a corrected MR image from MR images distorted by foreign object induced magnetic fields includes locating a foreign object in a subject and defining a localized area of a field of view about the foreign object where a magnetic field distortion adversely affects a first magnetic distortion correction technique. The first magnetic distortion correction technique is applied to the field of view other than in the localized area. A second magnetic distortion correction technique is applied to the localized area and the results of the application of the first and second magnetic distortion correction techniques are combined. An image is reconstructed based on the results of the application of the first and second magnetic distortion correction techniques.

Inventors: Koch; Kevin M. (Waukesha, WI), Hinks; Richard Scott (Waukesha, WI), Gering; David Thomas (Waukesha, WI)

Assignee: General Electric Company

International Classification: G01V 3/00 (20060101)

Expiration Date: 2021-05-19 0:00:00