Relaxation Time Estimation in MRI

被引：0

作者：

Baselice, Fabio ^{[1
]}

Ferraioli, Giampaolo ^{[1
]}

Pascazio, Vito ^{[1
]}

机构：

[1] Univ Napoli Parthenope, Dipartimento Tecnol, Naples, Italy

来源：

2012 IEEE NUCLEAR SCIENCE SYMPOSIUM AND MEDICAL IMAGING CONFERENCE RECORD (NSS/MIC) | 2012年

关键词：

Magnetic Resonance Imaging; Relaxation Time Estimation; Statistical Signal Processing;

D O I：

暂无

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

In this work, a novel estimator of proton density and relaxation times in Magnetic Resonance Imaging is presented. The evaluation of the signal model together with the statistical distribution of the noise have allowed the development of the Minimum Variance Unbiased (MVU) Estimator which, in case of complex decomposition of MRI data, corresponds to a Least Square (LS) one. With respect to amplitude base Maximum Likelihood Estimator, the proposed approach shows many advantages, including an higher accuracy due to the complex model and lower computational time due to the simple function. Results of real data are reported, showing the effectiveness of the method.

引用

页码：3975 / 3978

页数：4