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Optical Engineering

Correction of distortion of magnetic resonance (MR) pictures for MR-guided robotic stereotactic procedures
Author(s): Edmond A. Jonckheere; Yik San Kwoh; Woei-Chyn Chu; Behnam Bavarian
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Paper Abstract

This paper deals with the correction of the distortion of magnetic resonance pictures due to the presence of bulky stereotactic surgical equipment or other kinds of ferromagnetic perturbation. The distortion is measured over a ring of calibration rods distributed around the patient's head. This boundary information is used to correct the distortion all over the transverse scan plane. The unique feature of the proposed approach is that the error all over the transverse plane is bounded by the error around the ring of rods. This is accomplished by making use of subharmonic functions.

Paper Details

Date Published: 1 December 1990
PDF: 9 pages
Opt. Eng. 29(12) doi: 10.1117/12.55749
Published in: Optical Engineering Volume 29, Issue 12
Show Author Affiliations
Edmond A. Jonckheere, Univ. of Southern California (United States)
Yik San Kwoh, Memorial Medical Ctr. (United States)
Woei-Chyn Chu
Behnam Bavarian, Univ. of California/Irvine (United States)

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