Numerical Simulations of Edge Detection Effect Due to Chemical Shift Variation in Intermolecular Multiple-Quantum Coherence MRI

摘要：

Combined with the theories of intermolecular multiple-quantum coherences (iMQCs) and distant dipolar field (DDF) effect, edge detection effect due to chemical shift variation in magnetic resonance imaging (MRI) was simulated and discussed deeply using an efficient numerical algorithm based on the nonlinear Bloch equations. Simulation results show that, different from the conventional MRI signal,chemical shift in iMQC MRI can provide new imaging information, an edge detection method to search regions containing spins with chemical shift offset. The edge detection method can present plentiful information about various kinds of edges of objectregions.

作者: Huijun Sun Tao Lin Song Chen Zhong Chen

作者单位: Department of Physics,Fujian Engineering Research Center for Solid-State Lighting,Xiamen University, School of Science,Research Center of Complex System,Xiamen University,Xiamen 361021,PR China

会议类型: 国际会议

会议名称: 2008 IEEE International Symposium on IT in Medicine and Education(2008信息技术在医学和教育中的应用国际研讨会)(ITME 2008)

会议地点: 厦门

会议语种:英文

页码: 554-559

在线出版日期: 2008-12-12（万方平台首次上网日期，不代表论文的发表时间）