Počet záznamů: 1
Simulation of coupled-spin systems in the steady-state free-precession acquisition mode for fast magnetic resonance (MR) spectroscopic imaging
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SYSNO ASEP 0333618 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název Simulation of coupled-spin systems in the steady-state free-precession acquisition mode for fast magnetic resonance (MR) spectroscopic imaging Tvůrce(i) Starčuk jr., Zenon (UPT-D) RID, ORCID, SAI
Starčuková, Jana (UPT-D) RID, SAI, ORCID
Štrbák, Oliver (UPT-D)
Graveron-Demilly, D. (FR)Celkový počet autorů 4 Zdroj.dok. Measurement Science and Technology. - : Institute of Physics Publishing - ISSN 0957-0233
Roč. 20, č. 10 (2009), 104033:1-9Poč.str. 9 s. Jazyk dok. eng - angličtina Země vyd. GB - Velká Británie Klíč. slova magnetic resonance ; fast spectroscopic imaging ; steady-state free-precession ; coupled-spin system ; density matrix simulation Vědní obor RIV JA - Elektronika a optoelektronika, elektrotechnika Další zdroj rámcový projekt EK UT WOS 000269874900034 DOI 10.1088/0957-0233/20/10/104033 Anotace The steady-state free-precession (SSFP) acquisition mode may be found useful for fast in vivo proton MR spectroscopic imaging in high-field MR systems because of the achievable signal-to-noise ratio and the avoidance of RF pulses with large flip angles. Detection of signals from metabolites with coupled-spin systems under SSFP has not yet been accomplished, but should be possible in high field, albeit with substantial signal truncation. It must be expected that the spin system evolution and the spectra will be affected by the steady-state conditions, which prevent the spin systems from returning to the Boltzmann equilibrium. Computer simulation is needed for the experiment design and spectrum quantification. This work outlines a suitable simulation method (QuaM-EPG), which combines and extends two pre-existing approaches: the density matrix calculation, used in high-resolution NMR, and the extended phase graph method, used to describe cyclic excitation in fast MRI of water protons. Pracoviště Ústav přístrojové techniky Kontakt Martina Šillerová, sillerova@ISIBrno.Cz, Tel.: 541 514 178 Rok sběru 2010
Počet záznamů: 1