CHARACTERIZATION OF SPATIAL DISTORTION IN MAGNETIC-RESONANCE-IMAGING AND ITS IMPLICATIONS FOR STEREOTAXIC SURGERY

被引：202

作者：

SUMANAWEERA, TS ^{[1
]}

ADLER, JR ^{[1
]}

NAPEL, S ^{[1
]}

GLOVER, GH ^{[1
]}

机构：

[1] STANFORD UNIV,SCH MED,DEPT NEUROSURG,STANFORD,CA 94305

来源：

NEUROSURGERY | 1994年 / 35卷 / 04期

关键词：

DISTORTION CORRECTION; MAGNETIC RESONANCE DISTORTION; SPATIAL ACCURACY; STEREOTAXIC SURGERY;

D O I：

10.1227/00006123-199410000-00016

中图分类号：

R74 [神经病学与精神病学];

学科分类号：

摘要：

THE DIFFERENT SOURCES of spatial distortion in magnetic resonance images are reviewed from the point of view of stereotactic target localization. The extents of the two most complex sources of spatial distortion, gradient field nonlinearities and magnetic field inhomogeneities, are discussed both qualitatively and quantitatively. Several ways by which the spatial distortion resulting from these sources can be minimized are discussed. The clinical relevance of the spatial distortion along with some strategies to minimize the localization errors in magnetic resonance-guided stereotaxy are presented.

引用

页码：696 / 703

页数：8

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