| VITOUŠ, Jiří, Radovan JIŘÍK, Tibor STRAČINA, Michal HENDRYCH, Jaroslav NÁDENÍČEK, Ondřej MACÍČEK, Tian YE, Lucie KRÁTKÁ, Eva DRAŽANOVÁ, Marie NOVÁKOVÁ, Petr BABULA, Roman PANOVSKÝ, Edward DIBELLA a Zenon STARČUK. T1 mapping of myocardium in rats using self-gated golden-angle acquisition. Magnetic Resonance in Medicine. HOBOKEN: WILEY, 2024, roč. 91, č. 1, s. 368-380. ISSN 0740-3194. Dostupné z: https://dx.doi.org/10.1002/mrm.29846. |
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@article{2322577,
author = {Vitouš, Jiří and Jiřík, Radovan and Stračina, Tibor and Hendrych, Michal and Nádeníček, Jaroslav and Macíček, Ondřej and Ye, Tian and Krátká, Lucie and Dražanová, Eva and Nováková, Marie and Babula, Petr and Panovský, Roman and DiBella, Edward and Starčuk, Zenon},
article_location = {HOBOKEN},
article_number = {1},
doi = {http://dx.doi.org/10.1002/mrm.29846},
keywords = {myocardium; T1 mapping},
language = {eng},
issn = {0740-3194},
journal = {Magnetic Resonance in Medicine},
title = {T1 mapping of myocardium in rats using self-gated golden-angle acquisition},
url = {https://onlinelibrary.wiley.com/doi/full/10.1002/mrm.29846?fbclid=IwAR1CLf31IELGKAL_vlDN3CVTIz7eLpGNhKlllj2n5hFk98Atx-W2j9mSW1E},
volume = {91},
year = {2024}
}
TY - JOUR
ID - 2322577
AU - Vitouš, Jiří - Jiřík, Radovan - Stračina, Tibor - Hendrych, Michal - Nádeníček, Jaroslav - Macíček, Ondřej - Ye, Tian - Krátká, Lucie - Dražanová, Eva - Nováková, Marie - Babula, Petr - Panovský, Roman - DiBella, Edward - Starčuk, Zenon
PY - 2024
TI - T1 mapping of myocardium in rats using self-gated golden-angle acquisition
JF - Magnetic Resonance in Medicine
VL - 91
IS - 1
SP - 368-380
EP - 368-380
PB - WILEY
SN - 07403194
KW - myocardium
KW - T1 mapping
UR - https://onlinelibrary.wiley.com/doi/full/10.1002/mrm.29846?fbclid=IwAR1CLf31IELGKAL_vlDN3CVTIz7eLpGNhKlllj2n5hFk98Atx-W2j9mSW1E
N2 - 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.
ER -
VITOUŠ, Jiří, Radovan JIŘÍK, Tibor STRAČINA, Michal HENDRYCH, Jaroslav NÁDENÍČEK, Ondřej MACÍČEK, Tian YE, Lucie KRÁTKÁ, Eva DRAŽANOVÁ, Marie NOVÁKOVÁ, Petr BABULA, Roman PANOVSKÝ, Edward DIBELLA a Zenon STARČUK. T1 mapping of myocardium in rats using self-gated golden-angle acquisition. \textit{Magnetic Resonance in Medicine}. HOBOKEN: WILEY, 2024, roč.~91, č.~1, s.~368-380. ISSN~0740-3194. Dostupné z: https://dx.doi.org/10.1002/mrm.29846.
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