Fast iron oxide-induced low-field magnetic resonance imaging. (22nd October 2020)

• Record Type: Journal Article
• Authors: Rodriguez, Gonzalo G; Erro, Eustaquio M; Anoardo, Esteban
• Is Part Of: Journal of physics. Volume 54:Number 2(2021)
• Publication Date: 2020-10-22
• Subjects: NMR -- magnetic resonance imaging -- superparamagnetic iron oxide nanoparticles -- relaxometry -- fast-imaging; Physics -- Periodicals; 530
• DOI: 10.1088/1361-6463/abbe4d
• Languages: English
• ISSNs: 0022-3727

Abstract

Abstract: 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 (T1 ) relaxation time, and both spin-lattice and spin-spin (T2 ) 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.