Results 201 to 210 of about 66,223 (392)

Jointly Learned 3D Non‐Cartesian Sampling With Wave Encoding and Reconstruction for Neurovascular Phase Contrast MRI

Magnetic Resonance in Medicine, EarlyView.
ABSTRACT Purpose To develop accelerated 3D phase contrast (PC) MRI using jointly learned wave encoding and reconstruction. Methods Pseudo‐fully sampled neurovascular 4D flow data (N = 40) and a simulation framework were used to learn phase encoding locations, wave readout parameters, and model‐based reconstruction network (MoDL) for a rapid 3D PC scan (
Chenwei Tang, Brock W. Jolicoeur, James Rice, Caroline A. Doctor, Zaynab S. Yardim, Leonardo A. Rivera‐Rivera, Laura B. Eisenmenger, Kevin M. Johnson   +7 more
wiley   +1 more source

Technical Review of Magnetic Resonance Fingerprinting Applications in Cerebral Physiology

Magnetic Resonance in Medicine, EarlyView.
ABSTRACT Magnetic resonance fingerprinting (MRF) enables quantitative MRI by allowing the simultaneous mapping of multiple tissue properties through innovative acquisition and computational methods. This review focuses on the application of MRF techniques to cerebral physiology, emphasizing advancements in vascular imaging and the integration of ...
Chieh‐Te Lin, Hanzhang Lu, Audrey P. Fan   +2 more
wiley   +1 more source

Utility of arterial spin labelling MRI imaging in localising non lesional extratemporal focal epilepsies [PDF]

, 2023
P Kharbanda, Raju Kethavath, Jitupam Baishya, Sameer Vyas, Rajender Kumar, Kamalesh Chakravarty, Paramjeet Singh, Vivek Lal   +7 more
openalex   +1 more source

Velocity Spectrum Imaging Using Velocity Encoding Preparation Pulses

Magnetic Resonance in Medicine, EarlyView.
ABSTRACT Purpose The goal of this article is to introduce a technique to measure the velocity distribution of water inside each voxel of an MR image. The method is based on the use of motion sensitizing gradients with changing first moment to encode velocity. As such, it is completely non‐invasive and requires no contrast injections.
Luis Hernandez‐Garcia, Alberto L. Vazquez, Douglas C. Noll   +2 more
wiley   +1 more source

A Novel 9‐Channel 1H, 3‐Channel 31P Radiofrequency Coil for Interleaved Multinuclear Studies of Human Calf Muscle at 7 T

Magnetic Resonance in Medicine, EarlyView.
ABSTRACT Purpose To develop a double‐tuned calf coil with excellent 1H and 31P performance to study muscle physiology by interleaved 1H/31P MRS and parallel imaging at 7 T. Methods The coil combines three 1H transceive dipoles, six 1H receive‐only loops and three 31P transceive loops, arranged in a nested, half‐cylindrical layout.
Veronika Cap, Vasco Rafael Rocha dos Santos, Kostiantyn Repnin, Onisim Soanca, Elmar Laistler, Peter Wolf, Graham J. Kemp, Roberta Frass‐Kriegl, Martin Meyerspeer   +8 more
wiley   +1 more source

Quantification of Load Dependent Brain Activity in Parametric N-Back Working Memory Tasks using Pseudo-continuous Arterial Spin Labeling (pCASL) Perfusion Imaging

, 2011
Qihong Zou, Yihong Yang, Jia‐Hong Gao, Hong Gu, Danny J.J. Wang   +4 more
openalex   +1 more source

The value of arterial spin labelling (ASL) perfusion MRI in the assessment of post-treatment progression in adult glioma: A systematic review and meta-analysis. [PDF]

, 2023
Tamadur A Alsulami, Harpreet Hyare, David L. Thomas, Xavier Golay   +3 more
openalex   +1 more source

Next Generation 7 Tesla Arterial Spin Labeling With Rotated Spiral Acquisition Enables Mesoscale Resolution in 3D Brain Perfusion and Functional MRI

Magnetic Resonance in Medicine, EarlyView.
ABSTRACT Purpose To achieve high resolution (≤ 1 mm isotropic) whole‐brain perfusion imaging at 7 T with next generation ASL pulse sequence, reconstruction algorithm, and MRI hardware. Methods We capitalized on three major innovations: (1) FLASH‐based pseudo‐Continuous ASL (pCASL) sequence with rotated golden‐angle stack‐of‐spirals (rGA‐SoS) sampling; (
Chenyang Zhao, Fanhua Guo, Zidong Yang, Xingfeng Shao, Samantha J. Ma, Alexander J. S. Beckett, An T. Vu, David A. Feinberg, Danny J. J. Wang   +8 more
wiley   +1 more source

Laminar perfusion imaging with zoomed arterial spin labeling at 7 Tesla

NeuroImage, 2021
Xingfeng Shao, Fanhua Guo, Qinyang Shou, Kai Wang, K. Jann, Lirong Yan, A. Toga, Peng Zhang, Danny J. J. Wang   +8 more
semanticscholar   +1 more source

A Learning-from-noise Dilated Wide Activation Network for denoising Arterial Spin Labeling (ASL) Perfusion Images [PDF]

, 2020
Danfeng Xie, Yiran Li, Hanlu Yang, Bai Li, Lei Zhang, Ze Wang   +5 more
openalex   +1 more source