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Updated: Sep 11, 2025

Registered Bioimaging of Nanomaterials for Diagnostic and Therapeutic Monitoring

Registered Bioimaging of Nanomaterials for Diagnostic and Therapeutic Monitoring

Published on: December 9, 2010

Multi-echo acquisition and thermal denoising advances precision functional imaging.

Julia Moser¹, Steven M Nelson^1,2, Sanju Koirala^1,3

¹Masonic Institute for the Developing Brain, University of Minnesota, Minneapolis, MN, United States.

Imaging Neuroscience (Cambridge, Mass.)

|August 13, 2025

Summary

This summary is machine-generated.

New methods for precision functional magnetic resonance imaging (fMRI) improve data quality in adults and children. Multi-echo acquisitions show promise for developmental fMRI, though infant applications require further research.

Keywords:

brain development developmental neuroimaging methodological advancements multi-echo neonates precision functional mapping

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Last Updated: Sep 11, 2025

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Area of Science:

Neuroscience
Developmental Neuroscience
Neuroimaging

Background:

Precision Functional Mapping (PFM) offers insights into adult brain organization.
Understanding developmental changes in brain functional organization is crucial for lifelong health.
Acquiring high-quality precision fMRI data in developing populations presents unique challenges.

Purpose of the Study:

To investigate methods for improving precision fMRI data acquisition and analysis in developmental populations.
To evaluate the efficacy of multi-echo (ME) data acquisition and Noise Reduction with Distribution Corrected (NORDIC) denoising.
To assess the impact of these methods on temporal signal to noise ratio (tSNR) and functional connectivity reliability.

Main Methods:

Applied ME data acquisition and NORDIC denoising to precision fMRI data from adults, children, and newborn infants.
Assessed improvements in tSNR and split-half reliability of functional connectivity matrices.
Analyzed T2* relaxation times to understand echo weighting optimization for ME data.

Main Results:

Both ME acquisitions and NORDIC increased tSNR and functional connectivity reliability in adults.
NORDIC denoising benefits were replicated in pediatric and infant samples.
ME acquisitions revealed developmental differences in T2* relaxation times, impacting optimal echo weighting for infants.

Conclusions:

Methodological advances enhance Precision Functional Mapping in adults and developmental populations.
ME acquisitions show potential for optimizing developmental fMRI, particularly in infants, but require further investigation.
Further improvements are needed for infant-specific fMRI acquisition and analysis.