共 101 条
Nonparametric 5D D-R2 distribution imaging with single-shot EPI at 21.1 T: Initial results for in vivo rat brain
被引:2
作者:

Rosenberg, Jens T.
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机构:
Florida State Univ, Natl High Magnet Field Lab, Tallahassee, FL 32306 USA Florida State Univ, Natl High Magnet Field Lab, Tallahassee, FL 32306 USA

Grant, Samuel C.
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h-index: 0
机构:
Florida State Univ, Natl High Magnet Field Lab, Tallahassee, FL 32306 USA
Florida State Univ, FAMU FSU Coll Engn, Chem & Biomed Engn, Tallahassee, FL 32306 USA Florida State Univ, Natl High Magnet Field Lab, Tallahassee, FL 32306 USA

Topgaard, Daniel
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机构:
Lund Univ, Phys Chem, Lund, Sweden Florida State Univ, Natl High Magnet Field Lab, Tallahassee, FL 32306 USA
机构:
[1] Florida State Univ, Natl High Magnet Field Lab, Tallahassee, FL 32306 USA
[2] Florida State Univ, FAMU FSU Coll Engn, Chem & Biomed Engn, Tallahassee, FL 32306 USA
[3] Lund Univ, Phys Chem, Lund, Sweden
基金:
美国国家科学基金会;
瑞典研究理事会;
美国国家卫生研究院;
关键词:
Multidimensional diffusion encoding;
Diffusion-relaxation correlation;
Ultra-high field;
21.1;
T;
In vivo;
MICROSCOPIC DIFFUSION ANISOTROPY;
MAGNETIC-RESONANCE;
MRI;
RELAXATION;
NMR;
MICROSTRUCTURE;
HETEROGENEITY;
ECCENTRICITY;
SPECTROSCOPY;
VALIDATION;
D O I:
10.1016/j.jmr.2022.107256
中图分类号:
Q5 [生物化学];
学科分类号:
071010 ;
081704 ;
摘要:
In vivo human diffusion MRI is by default performed using single-shot EPI with greater than 50-ms echo times and associated signal loss from transverse relaxation. The individual benefits of the current trends of increasing B-0 to boost SNR and employing more advanced signal preparation schemes to improve the specificity for selected microstructural properties eventually may be cancelled by increased relaxation rates at high B-0 and echo times with advanced encoding. Here, initial attempts to translate state-ofthe-art diffusion-relaxation correlation methods from 3 T to 21.1 T are made to identify hurdles that need to be overcome to fulfill the promises of both high SNR and readily interpretable microstructural information. (C) 2022 Elsevier Inc. All rights reserved.
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