Title :
Method for partial reduction of the non-linearity and distortion in MR images caused by the presence of metal objects
Author :
Domoustchiev, Kiril ; Bott, Ken ; Smith, M.R. ; Mintchev, Martin P.
Author_Institution :
Dept. of Electr. & Comput. Eng., Calgary Univ., Alta., Canada
Abstract :
Some of the major problems in magnetic resonance imaging are related to static artifacts generated through interactions with the main magnetic field. The artifacts caused by biomedical implants such as orthopedic braces, prostheses or other fixation device implants distort the information contained in the image and impair the process of clinical investigation. In this paper we present preliminary results of a non-linear adjustive method for partial reduction of such type of distortion.
Keywords :
biomedical MRI; correlation methods; medical image processing; orthopaedics; prosthetics; MR images; biomedical implants; clinical investigation; cross correlation coefficients; distortion partial reduction; fixation device implants; magnetic resonance imaging; main magnetic field; metal objects; nonlinear adjustive method; nonlinearity partial reduction; orthopedic braces; prostheses; static artifacts; Hospitals; Image edge detection; Imaging phantoms; Implants; Magnetic fields; Magnetic resonance imaging; Magnetic susceptibility; Nonlinear distortion; Pixel; Steel;
Conference_Titel :
Electrical and Computer Engineering, 1999 IEEE Canadian Conference on
Conference_Location :
Edmonton, Alberta, Canada
Print_ISBN :
0-7803-5579-2
DOI :
10.1109/CCECE.1999.808087
