低场核磁共振二维谱反演技术及其应用  

Inversion Technology of 2D NMR Relaxometry in Low Field and Its Applications

作　　者：聂生东[1] 周小龙[1] 王远军[1] 

机构地区：[1]上海理工大学医疗器械与食品学院,上海杨浦区200093

出　　处：《电子科技大学学报》2015年第3期460-466,共7页Journal of University of Electronic Science and Technology of China

基　　金：国家重大科学仪器设备开发专项项目(2013YQ17046303);国家自然科学基金(60972122);上海市教育委员会科研创新项目(14ZZ135)

摘　　要：针对二维谱技术的特点和优势,将其引入到不同的应用领域中,验证了二维谱技术的可靠性和实用性。首先回顾了一种以将拟合误差控制在与噪声相当的水平为基本目标的二维反演算法,然后通过仿真实验验证了该算法的准确性,最后使用该算法获取的二维谱进行了一系列的应用分析。应用案例包括造影剂浓度选择、工业明胶与食用明胶鉴别以及储层产能评估等,涉及到医学成像、食品药品、能源等多个领域。仿真实验和多个应用案例的结果表明,该方法具有很好的鲁棒性和准确性,能够适用不同信噪比数据的反演,具有实际应用价值。This paper explores the practical ability of 2D nclear magnetic resonance （NMR） relaxometry inversion based on the features and advantages of 2D maps. An inversion algorithm aims to make the misfit comparable to noise level was cast in light firstly. Then some synthetic data was handled with this algorithm to get the accurate 2D relaxometry spectrum. Lastly, this technology was applied to many practical cases in the field of medical imaging, food and medicine, energy and so on. The results of synthetic data and experimental data show that the proposed method has a good robustness and an exact accuracy. The 2D NMR relaxometry including the inversion technology has a great potential value of practical applications.

关 键 词：二维相关谱 二维反演 低场核磁共振 时域核磁共振 

分 类 号：TP202.1[自动化与计算机技术—检测技术与自动化装置]