Results 231 to 240 of about 475,817 (388)

Alternating‐contrast single‐shot spiral MR‐ARFI with model‐based displacement map reconstruction

open access: yesMagnetic Resonance in Medicine, EarlyView.
Abstract Purpose To improve single‐shot spiral MR‐Acoustic Radiation Force Imaging (MR‐ARFI)'s robustness to dynamic phase errors and evaluate it in non‐human primates (NHPs) with a low‐f‐number transducer. Methods A single‐shot spiral MR‐ARFI pulse sequence with 2 mm in‐plane resolution and alternating displacement phase contrast was implemented to ...
Saikat Sengupta   +4 more
wiley   +1 more source

Functional MRI signatures of autonomic physiology in aging. [PDF]

open access: yesCommun Biol
Fan J   +9 more
europepmc   +1 more source

Analysis of fMRI Time-Series Revisited—Again

open access: yesNeuroImage, 1995
K. Worsley, Karl J. Friston
semanticscholar   +1 more source

Transcranial Doppler ultrasound validation of BOLD‐fMRI cerebral blood flow relationship

open access: yesMagnetic Resonance in Medicine, EarlyView.
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

Indirect Calorimetry–Monitored Nutritional Therapy: Highlights and Challenges

open access: yesJournal of Neuroanaesthesiology and Critical Care
Hari Hara Dash, Virendra Jain
doaj   +1 more source

fMRI of visual system activation in the conscious rabbit [PDF]

open access: bronze, 2000
Alice M. Wyrwicz   +4 more
openalex   +1 more source

T1‐weighted fMRI in mouse visual cortex using an iron oxide nanoparticle contrast agent and UTE imaging at 9.4 T

open access: yesMagnetic Resonance in Medicine, EarlyView.
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

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