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Academy of Mathematics and Systems Science, CAS Colloquia & Seminars：Fast Magnetic Resonance Imaging and Inverse Problems
快速 磁共振成像 逆问题
2023/4/17
磁共振成像是目前医学成像技术中功能最强大，技术门槛最复杂的技术之一。然而，相对其他成像模态较为缓慢的采集速度（较长的扫描时间）制约了磁共振成像在临床上的广泛应用。借助采样样本的数量与扫描时间的正比关系，通过减少采集的数据量（稀疏采样）来缩短磁共振采集时间是磁共振成像领域的重要途径，而从高度欠采样的数据中重建出高质量的图像可以近似为一个病态反问题，对这一问题的求解是快速磁共振成像领域的研究热点。本次...
Towards T1-limited magnetic resonance imaging using Rabi beats
T1-limited magnetic resonance imaging Rabi beats
2010/10/18
Two proof-of-principle experiments towards T1-limited magnetic resonance imaging with NV cen-
ters in diamond are demonstrated. First, a large number of Rabi oscillations is measured and it is demons...
Characterizing water fingering phenomena in soils using magnetic resonance imaging and multifractal theory
water fingering phenomena magnetic resonance imaging multifractal theory
2009/10/30
The study of water movement in soils is of fundamental importance in hydrologic science. It is generally accepted that in most soils, water and solutes flow through unsaturated zones via preferential ...
Non-invasive diagnostics in fossils - Magnetic Resonance Imaging of pathological belemnites
Non-invasive diagnostics fossils Magnetic Resonance Imaging pathological belemnites
2010/1/12
For more than a decade, Magnetic Resonance Imaging (MRI) has been routinely employed in clinical diagnostics because it allows non-invasive studies of anatomical structures and physiological processes...
Fine-scale measurement of diffusivity in a microbial mat with nuclear magnetic resonance imaging
nuclear magnetic resonance imaging Fine-scale measurement
2014/5/30
Noninvasive
1
H–nuclear magnetic resonance (NMR) imaging was used to investigate the diffusive properties of
microbial mats in two dimensions. Pulsed field gradient NMR was used to acquire im...