2024
T1 mapping of myocardium in rats using self-gated golden-angle acquisition
VITOUŠ, Jiří; Radovan JIŘÍK; Tibor STRAČINA; Michal HENDRYCH; Jaroslav NÁDENÍČEK et al.Základní údaje
Originální název
T1 mapping of myocardium in rats using self-gated golden-angle acquisition
Autoři
VITOUŠ, Jiří; Radovan JIŘÍK; Tibor STRAČINA ORCID; Michal HENDRYCH; Jaroslav NÁDENÍČEK; Ondřej MACÍČEK; Tian YE; Lucie KRÁTKÁ; Eva DRAŽANOVÁ; Marie NOVÁKOVÁ; Petr BABULA; Roman PANOVSKÝ; Edward DIBELLA a Zenon STARČUK
Vydání
Magnetic Resonance in Medicine, HOBOKEN, WILEY, 2024, 0740-3194
Další údaje
Jazyk
angličtina
Typ výsledku
Článek v odborném periodiku
Obor
30201 Cardiac and Cardiovascular systems
Stát vydavatele
Spojené státy
Utajení
není předmětem státního či obchodního tajemství
Odkazy
Impakt faktor
Impact factor: 3.000
Označené pro přenos do RIV
Ano
Kód RIV
RIV/00216224:14110/24:00135211
Organizační jednotka
Lékařská fakulta
UT WoS
EID Scopus
Klíčová slova anglicky
myocardium; T1 mapping
Příznaky
Mezinárodní význam, Recenzováno
Změněno: 2. 2. 2024 12:50, Mgr. Tereza Miškechová
Anotace
V originále
Purpose The aim of this study is to design a method of myocardial T1 quantification in small laboratory animals and to investigate the effects of spatiotemporal regularization and the needed acquisition duration. Methods We propose a compressed-sensing approach to T1 quantification based on self-gated inversion-recovery radial two/three-dimensional (2D/3D) golden-angle stack-of-stars acquisition with image reconstruction performed using total-variation spatiotemporal regularization. The method was tested on a phantom and on a healthy rat, as well as on rats in a small myocardium-remodeling study. Results The results showed a good match of the T1 estimates with the results obtained using the ground-truth method on a phantom and with the literature values for rats myocardium. The proposed 2D and 3D methods showed significant differences between normal and remodeling myocardium groups for acquisition lengths down to approximately 5 and 15 min, respectively. Conclusions A new 2D and 3D method for quantification of myocardial T1 in rats was proposed. We have shown the capability of both techniques to distinguish between normal and remodeling myocardial tissue. We have shown the effects of image-reconstruction regularization weights and acquisition length on the T1 estimates.
Návaznosti
| EF18_046/0016045, projekt VaV |
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| GA22-10953S, projekt VaV |
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| LM2018129, projekt VaV |
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| LM2023050, projekt VaV |
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| MUNI/A/1379/2022, interní kód MU |
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| MUNI/11/SUP/09/2022, interní kód MU |
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