Results 171 to 180 of about 249,270 (309)

Identifying Diagnostic Thresholds for the Assessment of Cerebrovascular Reserve Impairment in Moyamoya Disease: CO₂-Triggered BOLD-MRI and [¹⁵O]water-PET with Acetazolamide Challenge. [PDF]

Brain Sci
Haas P, Wiggenhauser LM, Spang J, Zerweck L, Volz C, Tatagiba M, Khan N, Meyer PT, Hauser TK, Roder C.   +9 more
europepmc   +1 more source

A Generalized Approach to Solving Deep Learning‐Based Quantitative Susceptibility Mapping and Quantitative Blood Oxygen Level Dependent Magnitude (QSM + qBOLD or QQ) for Oxygen Extraction Fraction (OEF) Mapping Across Diverse Acquisition Schemes

Magnetic Resonance in Medicine, EarlyView.
ABSTRACT Purpose QQ, a recently proposed oxygen extraction fraction (OEF) mapping technique combining quantitative susceptibility mapping (QSM) and quantitative blood oxygen level‐dependent (qBOLD) (QSM + qBOLD = QQ), generates OEF maps noninvasively from a single routine MRI sequence, without requiring vascular challenges used in other OEF approaches.
Tian Qiu, Ada Ally, Arpita Misra, Gloria C. Chiang, Thanh D. Nguyen, Susan A. Gauthier, Shun Zhang, Yi Wang, Junghun Cho   +8 more
wiley   +1 more source

Restorative Effects of Daytime Naps on Inhibitory Control: A Neuroimaging Study Following Sleep Deprivation

Nature and Science of Sleep
Leilei Li,1,* Ya Li,1,* Sihang Yu,2,* Ziliang Xu,1 Chen Wang,1 Fan Guo,1 Yingjuan Chang,1 Ran Zhang,3 Peng Fang,3– 5 Yuanqiang Zhu1 1Department of Radiology, Xijing Hospital, Air Force Medical University, Xi’an, Shaanxi, People’s Republic of ...
Li L, Li Y, Yu S, Xu Z, Wang C, Guo F, Chang Y, Zhang R, Fang P, Zhu Y   +9 more
doaj  

Reference‐Superimposed Reconstruction (RS‐Recon) for Arterial Spin Labeling

Magnetic Resonance in Medicine, EarlyView.
ABSTRACT Purpose Conventional arterial spin labeling (ASL) reconstruction suffers from sign‐flipping errors and/or noise bias under strong background suppression (BS), limiting SNR optimization. We propose reference‐superimposed reconstruction (RS‐recon) to enable ideal BS and robust signal recovery.
Jia Guo
wiley   +1 more source

Dynamic fMRI networks of human emotion. [PDF]

Elife
Janssen N, Elvira UKA, Janssen J, van Erp TGM.   +3 more
europepmc   +1 more source

Calibration‐Free Estimation of Cerebrovascular Reactivity From Resting‐State BOLD fMRI Using Reconstructed Respiratory Fluctuations

Magnetic Resonance in Medicine, EarlyView.
ABSTRACT Purpose Cerebrovascular reactivity (CVR) provides an important index of vascular health and is conventionally quantified using a hypercapnic gas or breath‐hold challenge in conjunction with blood‐oxygen‐level‐dependent functional magnetic resonance imaging (BOLD‐fMRI).
Abdoljalil Addeh, Ethan Church, Muhammad Mahajna, Karen Ardila, Pattarawut Charatpangoon, Alexander D. Cohen, Yang Wang, Rebecca J. Williams, G. Bruce Pike, M. Ethan MacDonald   +9 more
wiley   +1 more source

Parallel multilink group joint ICA (pmg-jICA): Fusion of 3D structural and 4D functional data across multiple resting fMRI networks. [PDF]

Netw Neurosci
Khalilullah KMI, Phadikar S, Agcaoglu O, Sui J, Duda M, Adali T, Calhoun VD.   +6 more
europepmc   +1 more source

Integrative insights into brain function and metabolism: Investigating the resting-state [18F]FDG-PET/fMRI coupling through partial least squares correlation analysis [PDF]

openLe diverse reti funzionali del cervello mostrano un diverso consumo metabolico, ma la relazione tra il metabolismo cerebrale regionale e le resting-state networks è ancora oggetto di indagine.
TARRICONE, CLAUDIA
core  

Servo Navigation and Phase Equalization Enhanced by Run‐Time Stabilization (PEERS) for 3D EPI Time Series

Magnetic Resonance in Medicine, EarlyView.
Purpose To enhance time‐resolved segmented imaging by synergy of run‐time stabilization and retrospective data‐driven phase correction. Methods A segmented 3D EPI sequence for fMRI time series is equipped with servo navigation based on short orbital navigators and a linear perturbation model, enabling run‐time correction for rigid‐body motion, bulk ...
Malte Riedel, Thomas Ulrich, Samuel Bianchi, Klaas P. Pruessmann   +3 more
wiley   +1 more source

Correction: Multimodal contrastive learning on rs-fMRI to quantify whole-brain network recovery after hypothalamic hamartoma surgery

BioMedical Engineering OnLine
Andrew Jeyabose, Belfin Robinson, Olivia Leggio, Meitra H. Kazemi, Varina L. Boerwinkle   +4 more
doaj   +1 more source