Fast and quiet MRI using a swept radiofrequency

D Idiyatullin, C Corum, JY Park, M Garwood - Journal of magnetic …, 2006 - Elsevier
A novel fast and quiet method of magnetic resonance imaging (MRI) is introduced which
creates new opportunities for imaging in medicine and materials science. The method is …

Magnitude least squares optimization for parallel radio frequency excitation design demonstrated at 7 Tesla with eight channels

K Setsompop, LL Wald, V Alagappan… - … in Medicine: An …, 2008 - Wiley Online Library
Spatially tailored radio frequency (RF) excitations accelerated with parallel transmit systems
provide the opportunity to create shaped volume excitations or mitigate inhomogeneous B1 …

RASER: a new ultrafast magnetic resonance imaging method

R Chamberlain, JY Park, C Corum… - … in Medicine: An …, 2007 - Wiley Online Library
A new MRI method is described to acquire a T2‐weighted image from a single slice in a
single shot. The technique is based on rapid acquisition by sequential excitation and …

Partial Fourier transform reconstruction for single‐shot MRI with linear frequency‐swept excitation

Y Chen, J Li, X Qu, L Chen, C Cai, S Cai… - Magnetic resonance …, 2013 - Wiley Online Library
A novel image encoding approach based on linear frequency‐swept excitation has been
recently proposed to overcome artifacts induced by various field perturbations in single‐shot …

A new sequence for single‐shot diffusion‐weighted NMR spectroscopy by the trace of the diffusion tensor

J Valette, C Giraudeau, C Marchadour… - Magnetic resonance …, 2012 - Wiley Online Library
Diffusion‐weighted spectroscopy is a unique tool for exploring the intracellular
microenvironment in vivo. In living systems, diffusion may be anisotropic, when biological …

Rapid in vivo apparent diffusion coefficient mapping of hyperpolarized 13C metabolites

BL Koelsch, GD Reed, KR Keshari… - Magnetic resonance …, 2015 - Wiley Online Library
Purpose Hyperpolarized 13C magnetic resonance allows for the study of real‐time
metabolism in vivo, including significant hyperpolarized 13C lactate production in many …

Spin‐echo MRI using π/2 and π hyperbolic secant pulses

JY Park, M Garwood - … in Medicine: An Official Journal of the …, 2009 - Wiley Online Library
Frequency‐modulated (FM) pulses have practical advantages for spin‐echo experiments,
such as the ability to produce a broadband π rotation, with an inhomogeneous …

SELOVS: Brain MRSI localization based on highly selective T1‐ and B1‐insensitive outer‐volume suppression at 3T

A Henning, M Schär, RF Schulte, B Wilm… - … in Medicine: An …, 2008 - Wiley Online Library
In vivo, high‐field MR spectroscopic imaging (MRSI) profits from signal‐to‐noise ratio (SNR)
gain and increased spectral resolution. However, bandwidth limitations of slice‐selective …

Design of broadband RF pulses with polynomial-phase response

RF Schulte, A Henning, J Tsao, P Boesiger… - Journal of Magnetic …, 2007 - Elsevier
The achievable bandwidth of common linear-phase RF pulses is limited by the maximum
feasible B1 amplitude of the MR system. It has been shown previously, that this limitation …

Localization by nonlinear phase preparation and k‐space trajectory design

WRT Witschey, CA Cocosco… - Magnetic resonance …, 2012 - Wiley Online Library
A technique is described to localize MR signals from a target volume using nonlinear pulsed
magnetic fields and spatial encoding trajectories designed using local k‐space theory. The …