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Fast quantitative susceptibility inversion based on dataweighting and split-Bregman algorithm

Abstract

定量磁化率成像(QuantitativeSusceptibilityMapping,QSM)是磁共振成像(MagneticResonanceImaging,MRI)中一项新兴的可用于研究组织特性和功能的技术。作为一种组织内在的物理特性,磁化率可以反映组织的铁含量、钙化、血氧饱和度等。因此,利用定量磁化率成像,可以有效地对这些信息进行定量分析。最近,定量磁化成像已经能够为脑出血、多发性硬化症、帕金森综合症、阿尔茨海默病等神经疾病的检测和研究提供帮助。 虽然有着广泛的应用前景,但定量磁化率图像的重建却是一个复杂的过程。通常,QSM由梯度回波序列(gradientecho,GRE)获取磁共振数据。...Quantitative susceptibility mapping (QSM) has become a promising magnetic resonance imaging (MRI) technique for studying tissue properties and functions. As an intrinsic physical property of tissue, susceptibility can reflect the iron deposits, calcification, vessel oxygen saturation and so on. Therefore, QSM provides an effective way to quantify and analyze the related information. Recently, QSM ...学位:工程硕士院系专业:物理科学与技术学院_工程硕士(电子与通信工程)学号:3312013115286

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