Method for correcting magnetic resonance image distortion for frame-based stereotactic surgery, with preliminary results

J Image Guid Surg. 1995;1(3):151-7. doi: 10.1002/(SICI)1522-712X(1995)1:3<151::AID-IGS4>3.0.CO;2-9.

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.

Publication types

  • Research Support, Non-U.S. Gov't
  • Research Support, U.S. Gov't, Non-P.H.S.

MeSH terms

  • Head / anatomy & histology
  • Humans
  • Image Processing, Computer-Assisted / methods*
  • Magnetic Resonance Imaging*
  • Neurosurgery*
  • Phantoms, Imaging
  • Stereotaxic Techniques*