Correction of Physiological Artifacts in Multi-Echo fMRI
Data-Evaluation of Possible RETROICOR Implementations

J 2025

Correction of Physiological Artifacts in Multi-Echo fMRI Data-Evaluation of Possible RETROICOR Implementations

KOVÁŘOVÁ, Anežka a Michal MIKL

Základní údaje

Originální název

Correction of Physiological Artifacts in Multi-Echo fMRI Data-Evaluation of Possible RETROICOR Implementations

Autoři

KOVÁŘOVÁ, Anežka a Michal MIKL

Vydání

Human Brain mapping, Hoboken, WILEY-BLACKWELL, 2025, 1065-9471

Další údaje

Jazyk

angličtina

Typ výsledku

Článek v odborném periodiku

Obor

30210 Clinical neurology

Stát vydavatele

Spojené státy

Utajení

není předmětem státního či obchodního tajemství

Odkazy

URL

Impakt faktor

Impact factor: 3.300 v roce 2024

Označené pro přenos do RIV

Ano

Organizační jednotka

Lékařská fakulta

Klíčová slova anglicky

denoising; fMRI; multi-echo; RETROICOR

Štítky

14110127, CF MAFIL

Příznaky

Mezinárodní význam, Recenzováno

Změněno: 5. 3. 2026 11:03, Mgr. Eva Dubská

Anotace

V originále

The study evaluates the efficacy of RETROICOR (Retrospective Image Correction) in mitigating physiological artifacts within multi-echo (ME) fMRI data. Two RETROICOR implementations were compared: applying corrections to individual echoes (RTC_ind) versus composite multi-echo data (RTC_comp). Data from 50 healthy participants were collected using diverse acquisition parameters, including multiband acceleration factors and varying flip angles, on a Siemens Prisma 3T scanner. Key metrics such as temporal signal-to-noise ratio (tSNR), signal fluctuation sensitivity (SFS), and variance of residuals demonstrated improved data quality in both RETROICOR models, particularly in moderately accelerated runs (multiband factors 4 and 6) with lower flip angles (45 degrees). Differences between RTC_ind and RTC_comp were minimal, suggesting both methods are viable for practical applications. While the highest acceleration (multiband factor 8) degraded data quality, RETROICOR's compatibility with faster acquisition sequences was confirmed. These findings underscore the importance of optimizing acquisition parameters and noise correction techniques for reliable fMRI investigations.

Návaznosti

GA23-06957S, projekt VaV

Název: Nové strategie ve zpracování multi-echo fMRI dat

Investor: Grantová agentura ČR, Nové strategie ve zpracování multi-echo fMRI dat

MUNI/A/1789/2024, interní kód MU

Název: Studium mechanismů vědomí a kognitivních funkcí ve vztahu k epilepsii a neurodegenerativním onemocněním

Investor: Masarykova univerzita, Studium mechanismů vědomí a kognitivních funkcí ve vztahu k epilepsii a neurodegenerativním onemocněním

90250, velká výzkumná infrastruktura

Název: Czech-BioImaging III

Citovat

KOVÁŘOVÁ, Anežka a Michal MIKL. Correction of Physiological Artifacts in Multi-Echo fMRI Data-Evaluation of Possible RETROICOR Implementations. Human Brain mapping. Hoboken: WILEY-BLACKWELL, 2025, roč. 46, č. 9, s. 1-20. ISSN 1065-9471. Dostupné z: https://doi.org/10.1002/hbm.70264.

@article{2507520,
   author = {Kovářová, Anežka and Mikl, Michal},
   article_location = {Hoboken},
   article_number = {9},
   doi = {https://doi.org/10.1002/hbm.70264},
   keywords = {denoising; fMRI; multi-echo; RETROICOR},
   language = {eng},
   issn = {1065-9471},
   journal = {Human Brain mapping},
   title = {Correction of Physiological Artifacts in Multi-Echo fMRI Data-Evaluation of Possible RETROICOR Implementations},
   url = {https://onlinelibrary.wiley.com/doi/10.1002/hbm.70264},
   volume = {46},
   year = {2025}
}

TY  - JOUR
ID  - 2507520
AU  - Kovářová, Anežka - Mikl, Michal
PY  - 2025
TI  - Correction of Physiological Artifacts in Multi-Echo fMRI Data-Evaluation of Possible RETROICOR Implementations
JF  - Human Brain mapping
VL  - 46
IS  - 9
SP  - 1-20
EP  - 1-20
PB  - WILEY-BLACKWELL
SN  - 10659471
KW  - denoising
KW  - fMRI
KW  - multi-echo
KW  - RETROICOR
UR  - https://onlinelibrary.wiley.com/doi/10.1002/hbm.70264
N2  - The study evaluates the efficacy of RETROICOR (Retrospective Image Correction) in mitigating physiological artifacts within multi-echo (ME) fMRI data. Two RETROICOR implementations were compared: applying corrections to individual echoes (RTC_ind) versus composite multi-echo data (RTC_comp). Data from 50 healthy participants were collected using diverse acquisition parameters, including multiband acceleration factors and varying flip angles, on a Siemens Prisma 3T scanner. Key metrics such as temporal signal-to-noise ratio (tSNR), signal fluctuation sensitivity (SFS), and variance of residuals demonstrated improved data quality in both RETROICOR models, particularly in moderately accelerated runs (multiband factors 4 and 6) with lower flip angles (45 degrees). Differences between RTC_ind and RTC_comp were minimal, suggesting both methods are viable for practical applications. While the highest acceleration (multiband factor 8) degraded data quality, RETROICOR's compatibility with faster acquisition sequences was confirmed. These findings underscore the importance of optimizing acquisition parameters and noise correction techniques for reliable fMRI investigations.
ER  -

KOVÁŘOVÁ, Anežka a Michal MIKL. Correction of Physiological Artifacts in Multi-Echo fMRI Data-Evaluation of Possible RETROICOR Implementations. \textit{Human Brain mapping}. Hoboken: WILEY-BLACKWELL, 2025, roč.~46, č.~9, s.~1-20. ISSN~1065-9471. Dostupné z: https://doi.org/10.1002/hbm.70264.

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