Fast iron oxide-induced low-field magnetic resonance imaging

被引：6
|
作者：
Rodriguez, Gonzalo G. [1 ,2 ]
Erro, Eustaquio M. [1 ,2 ]
Anoardo, Esteban [1 ,2 ]
机构：
[1] Univ Nacl Cordoba, Grp Resonancia Magnet Nucl, FAMAF, Lab Relaxometria & Tecn Especiales LaRTE, Cordoba, Argentina
[2] Consejo Nacl Invest Cient & Tecn, IFEG, Cordoba, Argentina
来源：
JOURNAL OF PHYSICS D-APPLIED PHYSICS | 2021年 / 54卷 / 02期
关键词：
NMR; magnetic resonance imaging; superparamagnetic iron oxide nanoparticles; relaxometry; fast-imaging; TO-NOISE RATIO; CONTRAST AGENTS; CYCLING NMR; MRI; NANOPARTICLES; RELAXIVITY;
D O I：
10.1088/1361-6463/abbe4d
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
Dynamic images acquired by proton fast field-cycling magnetic resonance imaging are presented for the first time. Image contrast mediated by superparamagnetic iron oxide nanoparticles and weighted by the spin-lattice (T-1) relaxation time, and both spin-lattice and spin-spin (T-2) relaxation times, are discussed. Image acquisition and processing within 8 s is allowed for real-time recording of exemplary physical situations evolving in a compatible time-scale. Two simple examples are shown with the corresponding videos assembled by sequencing the acquired images. Fast iron oxide-induced low-field magnetic resonance imaging (MRI) constitutes the first step in the development of field-cycling functional MRI for biomedical and physical applications.
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页数：8
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