SOURCES OF ERROR IN THE QUANTITATIVE-ANALYSIS OF MRI SCANS

被引：39

作者：

PLANTE, E

TURKSTRA, L

机构：

[1] Department of Speech and Hearing Sciences, The University of Arizona, Tucson

来源：

MAGNETIC RESONANCE IMAGING | 1991年 / 9卷 / 04期

关键词：

BIAS; BRAIN; MEASUREMENT; MORPHOMETRIC; MRI;

D O I：

10.1016/0730-725X(91)90047-P

中图分类号：

R8 [特种医学]; R445 [影像诊断学];

学科分类号：

1002 ; 100207 ; 1009 ;

摘要：

The increasing use of quantitative analysis of MRI scans in the literature has produced a need to identify potential sources of bias in such analysis procedures. Six sources of bias are demonstrated in this paper. These include bias attributable to partial volume effects, head tilt, plane of view, use of noncontiguous slices, contrast/intensity manipulations, and magnetic inhomogeneities. The magnitude of bias for each source varied according to whether a hemisphere or regions within a hemisphere were measured, with regional effects typically exceeding hemisphere effects.

引用

页码：589 / 595

页数：7

共 16 条

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