Ultra‐high‐field MRI provides large increases in signal‐to‐noise ratio (SNR) as well as
enhancement of several contrast mechanisms in both structural and functional imaging …

This chapter explores some of the challenges of functional magnetic resonance imaging
(fMRI); in particular, the constraints encountered in terms of spatial and temporal resolution …

Cannabis is the most abused illegal substance in the United States. Alterations in brain
function and motor behavior have been reported in chronic cannabis users, but the results …

Gradient echo echo-planar imaging (GE EPI) is used for most fMRI studies but can suffer
substantially from image distortions and BOLD sensitivity (BS) loss due to susceptibility …

Cardiovascular disease is the leading cause of death world-wide. It is increasingly
recognised that cardiac pathologies show, or may even be caused by, changes in …

Purpose To design parallel transmission spokes pulses with time‐shifted profiles for joint
mitigation of intensity variations due to B1+ effects, signal loss due to through‐plane …

Conventional spectral‐spatial pulses used for water‐selective excitation in proton
resonance frequency–shift MR thermometry require increased sequence length compared …

Standard T 2* weighted functional magnetic resonance imaging (fMRI) performed with echo-
planar imaging (EPI) suffers from signal loss in the ventromedial prefrontal cortex (vmPFC) …

Objective Ultrahigh field MRI provides great opportunities for medical diagnostics and
research. However, ultrahigh field MRI also brings challenges, such as larger magnetic …

Susceptibility artifacts and excitation radiofrequency field B1+ inhomogeneity are major
limitations in high‐field MRI. Parallel transmission methods are promising for reducing …