J 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
Název: Czech-BioImaging II