Results 271 to 280 of about 270,788 (377)
Outlook on zero/ultrashort echo time techniques in functional MRI
Abstract Since its introduction more than 30 years ago, the blood oxygenation level dependent (BOLD) contrast remains the most widely used method for functional MRI (fMRI) in humans and animal models. The BOLD contrast is typically acquired with echo planar imaging (EPI) to obtain sensitization of the signal during the echo time (TE) to dynamic changes
Silvia Mangia +2 more
wiley +1 more source
Amygdala Connectivity Alterations in High Myopia: A Resting-State fMRI Study with SVM-Based Classification. [PDF]
Dong ZE +7 more
europepmc +1 more source
Transcranial Doppler ultrasound validation of BOLD‐fMRI cerebral blood flow relationship
Abstract Purpose A precise understanding of the interplay between cerebral blood flow (CBF) and blood oxygen level‐dependent (BOLD) fMRI signals is essential for advancing cerebrovascular research. Although calibrated BOLD approaches often rely on arterial spin labelling (ASL) to estimate CBF, alternative validation using transcranial Doppler ...
Genevieve Hayes +3 more
wiley +1 more source
Neurofunctional correlates of emotional dysregulation in adolescent Crohn's disease: a resting-state fMRI preliminary investigation. [PDF]
Liu A, Huang M, Deng X, Huang S, Xu K.
europepmc +1 more source
Abstract Purpose This study aims to investigate the feasibility of using T1‐weighted fMRI with an iron oxide nanoparticle contrast agent and UTE imaging at 9.4 T to measure functional hyperemia in the mouse visual cortex. The goal is to capture positive signal changes in both the parenchyma and pial surface, and to test whether surface vessels respond ...
Naman Jain +4 more
wiley +1 more source
GEMReg: a spatio-temporal grayordinate ensemble modelling framework for predicting task activation maps from resting-state fMRI. [PDF]
Pasumarthi S +3 more
europepmc +1 more source
Abstract Purpose To demonstrate the feasibility and performance of whole‐brain blood oxygen level–dependent functional MRI (fMRI) in humans at 10.5 T by combining motion‐robust three‐dimensional gradient‐echo echo‐planar imaging, parallel transmission, and high‐density radiofrequency (RF) receive coils.
Shuxian Qu +15 more
wiley +1 more source

