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Method for correcting magnetic resonance image distortion for frame-based stereotactic surgery, with preliminary
T S Sumanaweera1, J R Adler, G H Glover
1Department of Radiology, Stanford University School of Medicine, California 94305-5488, USA. sumane@grapes.stanford.edu
Journal of Image Guided Surgery
|January 1, 1995
Abstract:
We previously described a technique for correcting patient-specific magnetic field inhomogeneity spatial distortion in magnetic resonance images (MRI), which was not applicable to patients fitted with MRI-compatible stereotactic fiducial frames. Here we describe an improvement to the technique that permits application for these patients. Measurements with a cadaver head show that this method achieves MRI stereotactic localization accuracy of 1 mm.