2023
Utility of quantitative MRI metrics in brain ageing research
FILIP, Pavel, Viktória KOKOŠOVÁ, Zdenek VALENTA, Marek BALÁŽ, Silvia MANGIA et. al.Základní údaje
Originální název
Utility of quantitative MRI metrics in brain ageing research
Autoři
FILIP, Pavel (703 Slovensko, garant), Viktória KOKOŠOVÁ (703 Slovensko, domácí), Zdenek VALENTA (203 Česká republika), Marek BALÁŽ (703 Slovensko, domácí), Silvia MANGIA, Shalom MICHAELI a Lubomír VOJTÍŠEK (203 Česká republika, domácí)
Vydání
Frontiers in aging Neuroscience, LAUSANNE, FRONTIERS MEDIA SA, 2023, 1663-4365
Další údaje
Jazyk
angličtina
Typ výsledku
Článek v odborném periodiku
Obor
30210 Clinical neurology
Stát vydavatele
Švýcarsko
Utajení
není předmětem státního či obchodního tajemství
Odkazy
Impakt faktor
Impact factor: 4.800 v roce 2022
Kód RIV
RIV/00216224:14110/23:00132261
Organizační jednotka
Lékařská fakulta
UT WoS
000954641900001
Klíčová slova anglicky
ageing; quantitative MRI; rotating frame relaxometry; diffusion weighted imaging; resting state functional MRI
Příznaky
Mezinárodní význam, Recenzováno
Změněno: 17. 10. 2024 10:04, Mgr. Adéla Pešková
Anotace
V originále
The advent of new, advanced quantitative MRI metrics allows for in vivo evaluation of multiple biological processes highly relevant for ageing. The presented study combines several MRI parameters hypothesised to detect distinct biological characteristics as myelin density, cellularity, cellular membrane integrity and iron concentration. 116 healthy volunteers, continuously distributed over the whole adult age span, underwent a multi-modal MRI protocol acquisition. Scatterplots of individual MRI metrics revealed that certain MRI protocols offer much higher sensitivity to early adulthood changes while plateauing in higher age (e.g., global functional connectivity in cerebral cortex or orientation dispersion index in white matter), while other MRI metrics provided reverse ability-stable levels in young adulthood with sharp changes with rising age (e.g., T1 rho and T2 rho). Nonetheless, despite the previously published validations of specificity towards microstructural biology based on cytoarchitectonic maps in healthy population or alterations in certain pathologies, several metrics previously hypothesised to be selective to common measures failed to show similar scatterplot distributions, pointing to further confounding factors directly related to age. Furthermore, other metrics, previously shown to detect different biological characteristics, exhibited substantial intercorrelations, be it due to the nature of the MRI protocol itself or co-dependence of relevant biological microstructural processes. All in all, the presented study provides a unique basis for the design and choice of relevant MRI parameters depending on the age group of interest. Furthermore, it calls for caution in simplistic biological inferences in ageing based on one simple MRI metric, even though previously validated under other conditions. Complex multi-modal approaches combining several metrics to extract the shared subcomponent will be necessary to achieve the desired goal of histological MRI.
Návaznosti
90129, velká výzkumná infrastruktura |
|