IS THE SIGNAL INTENSITY OF CEREBROSPINAL-FLUID CONSTANT - INTENSITY MEASUREMENTS WITH HIGH AND LOW-FIELD MAGNETIC-RESONANCE IMAGERS

被引：35

作者：

LUOMA, K

RAININKO, R

NUMMI, P

LUUKKONEN, R

机构：

[1] Department of Radiology, University of Helsinki, Helsinki

[2] MR Research Laboratory, Instrumentarium Corp., Helsinki

[3] Institute of Occupational Health, Helsinki

来源：

MAGNETIC RESONANCE IMAGING | 1993年 / 11卷 / 04期

关键词：

MAGNETIC RESONANCE IMAGING; CEREBROSPINAL FLUID; SIGNAL INTENSITY;

D O I：

10.1016/0730-725X(93)90474-R

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 signal intensity of cerebrospinal fluid (CSF) was studied by measuring the intensity of nine samples of CSF using various routine pulse sequences with 1.0 T and 0.1 T magnetic resonance imagers. The observed signal intensity differences between the CSF samples were small, as were the differences between the CSF samples and distilled water, although two of the samples were pathological with an elevated protein content. Signal intensity did not correlate with the protein content, and the location of the sample in the coil (head coils were used) caused more variation in the results than did the composition of the sample. The same results were obtained with both imagers. Our results suggest that CSF may be suitable for an intensity reference in routine patient studies in regions where the flow and pulsatile movement of CSF are slow enough not to affect the signal intensity, but further studies are needed to determine such regions in the CSF system.

引用

页码：549 / 555

页数：7

共 22 条

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