Advanced MRI Techniques and Applications

A 3T investigation of B1+-inhomogeneity tolerance in MP2RAGE-based R1-mapping by calculating second contrast that permits previously problematic sequence parameters

The paper demonstrates that optimizing MP2RAGE sequence parameters for B1+-inhomogeneity tolerance can be combined with a 2D look-up-table approach to accurately estimate R1-maps without additional B1+-maps.

High-resolution perfusion imaging in rodents using pCASL at 9.4 T

This paper develops a high-resolution pCASL imaging setup for rodents, improving spatial resolution and enabling better delineation of brain areas in health and disease.

Characterization and Mitigation of a Simultaneous Multi-Slice fMRI Artifact: Multiband Artifact Regression in Simultaneous Slices

This paper identifies and corrects a novel artifact in multiband fMRI data using MARSS, improving signal-to-noise ratio and reducing systematic spatial patterns.

Metabolite T2 relaxation times decrease across the adult lifespan in a large multi-site cohort

The paper investigates age-related changes in metabolite T2 relaxation times across the adult lifespan in a multi-site cohort, finding significant declines in several metabolites with aging.

Mitochondrial Oxidative Phosphorylation Capacity in Skeletal Muscle Measured by Ultrafast Z-Spectroscopy (UFZ) MRI at 3T

This study evaluates ultrafast Z-spectroscopy MRI with pH correction for measuring mitochondrial oxidative phosphorylation in human skeletal muscle.

A 128-channel receive array with enhanced SNR performance for 10.5 tesla brain imaging

The paper develops a 128-channel receive array for 10.5T brain imaging, showing SNR gains and plateau effects in central regions.

Spatiotemporal cerebral blood flow dynamics underlies emergence of the limbic-sensorimotor-association cortical gradient in human infancy

The paper identifies a spatiotemporal pattern of cerebral blood flow in infants that correlates with cortical specialization and developmental functioning.

Evaluating models of the ageing BOLD response

This study evaluates hemodynamic models of the BOLD response across the adult lifespan, finding that three-parameter models and biophysical models like HDM capture age-related changes effectively.

A Model-Driven Meta-Analysis Supports the Emerging Consensus View that Inhibitory Neurons Dominate BOLD-fMRI Responses

The paper presents a model-driven meta-analysis showing inhibitory neurons dominate BOLD-fMRI responses, with excitatory neurons contributing less than 20%.

Asymmetric spin echo multi-echo echo planar imaging (ASEME-EPI) sequence for pre-clinical high-field fMRI

This paper introduces ASEME-EPI, a new fMRI sequence combining GRE and SE to improve BOLD contrast-to-noise ratio and specificity in high-field preclinical imaging.

Region-specific uncoupling of oxygen and glucose metabolism in the human cortex during visual stimulation

This study uses combined PET/MR imaging to show that visual stimulation in humans increases glucose metabolism more than oxygen consumption in visual regions, while other cortical areas show oxidative downregulation.

Defacing biases visual quality assessments of structural MRI

This study assesses how defacing structural MRI images affects quality assessments by humans and automated tools, finding significant human bias and minimal impact on MRIQC metrics.

Assessing data quality on fetal brain MRI reconstruction: a multi-site and multi-rater study

This study evaluates inter- and intra-rater variability in quality scoring of fetal brain MRI reconstructions across three pipelines and identifies systematic weaknesses in the methods.

Cardiovascular and vasomotor pulsations in the brain and periphery during awake and NREM sleep in a multimodal fMRI study

This study examines cardiovascular and vasomotor pulsations in the brain and periphery during awake and NREM sleep using fMRI and photoplethysmography, finding increased synchrony and power in vasomotor waves during sleep.

The Douglas Bell Canada Brain Bank Post-mortem Brain Imaging Protocol

The paper describes a postmortem MRI protocol for the Douglas-Bell Canada Brain Bank to acquire high-resolution images while preserving tissue for histological analysis.

Quantitative 2D J-resolved metabolite-cycled semiLASER spectroscopy of metabolites and macromolecules in the human brain at 9.4 T

This paper introduces a novel 2D J-resolved metabolite-cycled semiLASER spectroscopy method to quantify 16 metabolites in the human brain at 9.4 T, demonstrating improved sensitivity and reduced acquisition time.

A Water Relaxation Atlas for Age and Region specific Metabolite Concentration Correction

This paper develops a water relaxation atlas to correct metabolite concentrations in MRS by integrating age and region-specific relaxation values into the analysis workflow.

Activation mapping in multi-center rat sensory-evoked functional MRI datasets using a unified pipeline.

The paper assesses consistency of rat fMRI results across 12 centers using a unified pipeline and identifies variability due to experimental differences.

The Simultaneous Measurement of Reversed Phase-Encoding EPI in a Single fMRI Session: Evaluation of Geometric Distortion Correction in Submillimetre fMRI at 7T

This paper introduces a novel fMRI scheme that simultaneously acquires reversed phase-encoding EPI data in a single session, reducing acquisition time and energy deposition while evaluating distortion correction's impact on submillimetre fMRI.

DeepResBat: deep residual batch harmonization accounting for covariate distribution differences

DeepResBat improves MRI data harmonization by addressing covariate distribution differences, outperforming existing methods while avoiding false associations.

Transdiagnostic Symptom Domains are Associated with Head Motion During Multimodal Imaging in Children

The paper examines how transdiagnostic symptom domains relate to head motion in children during multimodal neuroimaging.

In vivo quantification of creatine kinase kinetics in mouse brain using 31P-MRS at 7 Tesla

This study quantifies creatine kinase kinetics in mouse brain using 31P-MRS at 7 Tesla, showing that reduced breathing rate increases the forward rate constant by 36%.

Towards genuine three-dimensional diffusion imaging with physiological motion compensation

This paper introduces a 3D diffusion-weighted imaging sequence with motion compensation and evaluates its performance on healthy volunteers and patients with ischemic lesions.

Motion correction with subspace-based self-navigation for combined angiography, perfusion and structural imaging

This paper introduces a subspace-based motion correction method for MRI with varying tissue contrast, improving image quality and correlation with reference images.

An optimized framework for simultaneous EEG-fMRI at 7T enabling safe, high-quality human brain imaging with millisecond temporal resolution and sub-millimeter spatial resolution

K-space sampling strategies to reduce noise induced by cardiac pulsatility in brain maps of R2* and magnetic susceptibility

The paper introduces two k-space sampling strategies to reduce cardiac-induced noise in MRI brain maps of R2* and magnetic susceptibility, showing improved variability reduction with one strategy.

Comparison of test-retest reproducibility of DESPOT and 3D-QALAS for water T1 and T2 mapping

This study compares the test-retest reproducibility of DESPOT and QALAS for T1 and T2 mapping in healthy volunteers, finding QALAS provides better reproducibility and reduced acquisition time.

Time-division multiplexing (TDM) sequence removes bias in T2 estimation and relaxation-diffusion measurements

This study compares multi-echo and time-division multiplexing sequences for relaxation-diffusion MRI, finding TDM provides more accurate T2 estimates and microstructure measures with faster acquisition.

Improving the accuracy of cerebral blood flow measurement by phase contrast MRI

This study identifies key factors affecting cerebral blood flow measurement accuracy using phase contrast MRI and provides guidelines for optimal settings.

Mastering Artifact Correction in Neuroimaging Analysis: A Retrospective Approach

MOANA corrects MRI artifacts using deep learning, achieving high performance in FLAIR contrast with SSIM 0.9803 and NMI 0.8030.