Platinum subdural grid: MR imaging compatibility testing

被引：7
|
作者：
Kanal, E
Meltzer, CC
Adelson, PD
Scheuer, MP
机构：
[1] Univ Pittsburgh, Med Ctr, Dept Radiol, Pittsburgh, PA 15213 USA
[2] Univ Pittsburgh, Med Ctr, Dept Psychiat, Pittsburgh, PA 15213 USA
[3] Univ Pittsburgh, Med Ctr, Dept Neurol, Pittsburgh, PA 15213 USA
[4] Childrens Hosp Pittsburgh, Dept Neurosurg, Pittsburgh, PA 15213 USA
来源：
RADIOLOGY | 1999年 / 211卷 / 03期
关键词：
head; MR; magnetic resonance (MR); physics; safety; radiology and radiologists; iatrogenic injury;
D O I：
10.1148/radiology.211.3.r99jn01886
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：
A platinum subdural grid electrode (used for seizure monitoring) was tested for potential heating during magnetic resonance (MR) imaging at 1.5 and 3.0 T. Fast spin-echo imaging with high radio-frequency transmitted power was performed while temperature measurements for the grid phantom were recorded by means of fiberoptic thermometry. Temperature variations remained within 1.0 degrees C. MR imaging examination in patients in whom such grid electrodes are implanted is expected to result in clinically insignificant temperature changes in the vicinity of the grid electrode or its leads.
引用
收藏
页码：886 / 888
页数：3
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