Rotating frame spin lattice relaxation in a swine model of chronic, left ventricular myocardial infarction.

Rotating frame spin lattice relaxation in a swine model of chronic, left ventricular myocardial infarction.
复制标题

DOI:
10.1002/mrm.22543
复制
发表时间:
2010-11
影响因子:
3.3
通讯作者:
Reddy, Ravinder
Reddy, Ravinder
中科院分区:
医学3区
文献类型:
--
作者:
Witschey, Walter R. T.;Pilla, James J.;Ferrari, Giovanni;Koomalsingh, Kevin;Haris, Mohammed;Hinmon, Robin;Zsido, Gerald;Gorman, Joseph H., III;Gorman, Robert C.;Reddy, Ravinder

文献摘要

参考文献

被引文献

相似文献

在慢性左心室心肌梗死的猪模型中定量T1ρ弛豫时间。结果发现,在低自旋锁振幅和T2加权图像中,存在抑制内源性对比度的低频弛豫机制。中等幅度的自旋锁定脉冲可以克服这些弛豫机制。弛豫色散数据的测量范围内的RF场振幅和模型制定包括偶极-偶极弛豫调制的分子旋转和一个明显的交换机制。这些技术可能在临床上用于观察慢性左心室心脏重构。
T1ρ relaxation times were quantified in a swine model of chronic, left ventricular myocardial infarction. It was found that there were low frequency relaxation mechanisms that suppress endogenous contrast at low spin lock amplitudes and in T2-weighted images. A moderate amplitude spin locking pulse could overcome these relaxation mechanisms. Relaxation dispersion data was measured over a range of RF field amplitudes and a model was formulated to include dipole-dipole relaxation modulated by molecular rotation and an apparent exchange mechanism. These techniques may find some use in the clinic for the observation of chronic, left ventricular cardiac remodeling.
DOI: 10.1016/s1090-7807(02)00197-0
发表时间: 2003-05-01
影响因子: 2.2
作者:
Charagundla, SR;Borthakur, A;Reddy, R
通讯作者: Reddy, R
DOI: 10.1038/jcbfm.2008.113
发表时间: 2009-01-01
影响因子: 6.3
作者:
Jokivarsi, Kimmo T.;Niskanen, Juha-Pekka;Groehn, Olli H.
通讯作者: Groehn, Olli H.
DOI: 10.1002/mrm.10233
发表时间: 2002-09-01
影响因子: 3.3
作者:
Kettunen, MI;Gröhn, OHJ;Kauppinen, RA
通讯作者: Kauppinen, RA
DOI: 10.1016/j.jmr.2004.05.010
发表时间: 2004-08-01
影响因子: 2.2
作者:
Michaeli, S;Sorce, DJ;Garwood, M
通讯作者: Garwood, M