REDUCING MAGNETIC-SUSCEPTIBILITY DIFFERENCES USING LIQUID FLUOROCARBON PADS (SAT PAD(TM)) - RESULTS WITH SPECTRAL PRESATURATION OF FAT
REDUCING MAGNETIC-SUSCEPTIBILITY DIFFERENCES USING LIQUID FLUOROCARBON PADS (SAT PAD(TM)) - RESULTS WITH SPECTRAL PRESATURATION OF FAT
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DOI：
10.3109/10731199409138853
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发表时间：
1994-01-01
影响因子：
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通讯作者：
MATTREY, RF
中科院分区：
文献类型：
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作者：
EILENBERG, SS;TARTAR, VM;MATTREY, RF
尽管磁场可以是均匀的，但是将人类受试者定位在磁体的膛中以执行成像研究会引起不均匀的场。当对象是圆柱形时，产生的效果最小。在明显的轮廓异常区域，如腿到脚的交界处和躯干到颈部或颈部到头部，不均匀性可能非常明显，以至于脂肪饱和度出现错误，可能导致误诊。本文旨在解释磁化率，脂肪饱和度的原理，以及Sat Pads如何帮助改善磁场均匀性。改进的均匀性导致更高质量的MR图像，改进的均匀脂肪/水饱和度以允许真实的解剖表示。
Although the magnetic field may be homogeneous, the positioning of a human subject in the bore of the magnet to perform imaging studies induces inhomogeneous fields. Least effect is generated when the object is cylindrical. In regions of marked contour abnormalities such as the leg to foot junction and trunk to neck or neck to head, the inhomogeneity can be so dramatic that errors in fat saturation occur that can lead to misdiagnoses.This manuscript is intended to explain the principle of magnetic susceptibility, fat saturation, and how Sat Pads help improve magnetic field homogeneity. The improved homogeneity results in higher quality MR images, improved homogeneous fat/water saturation to allow for true anatomic representation.