Thermal variation in gradient response: measurement and modeling
J Nussbaum, BE Dietrich, BJ Wilm… - Magnetic Resonance …, 2022 - Wiley Online Library
Purpose Many aspects and imperfections of gradient dynamics in MRI have been
successfully captured by linear time‐invariant (LTI) models. Changes in gradient behavior …
successfully captured by linear time‐invariant (LTI) models. Changes in gradient behavior …
Phase contrast MRI of creeping flows using stimulated echo
KN Magdoom, A Zeinomar, RR Lonser… - Journal of Magnetic …, 2019 - Elsevier
Creeping flows govern many important physiological phenomena such as elevated
interstitial fluid flows in tumors, glymphatic flows in the brain, among other applications …
interstitial fluid flows in tumors, glymphatic flows in the brain, among other applications …
Minimax current density gradient coils: analysis of coil performance and heating
Standard gradient coils are designed by minimizing the inductance or resistance for an
acceptable level of gradient field nonlinearity. Recently, a new method was proposed to …
acceptable level of gradient field nonlinearity. Recently, a new method was proposed to …
Minimum maximum temperature gradient coil design
Ohmic heating is a serious problem in gradient coil operation. A method is presented for
redesigning cylindrical gradient coils to operate at minimum peak temperature, while …
redesigning cylindrical gradient coils to operate at minimum peak temperature, while …
Highly shielded gradient coil design for a superconducting planar MRI system
Y Wang, Q Wang, H Qu, Y Liu… - IEEE Transactions on …, 2019 - ieeexplore.ieee.org
In a planar, superconducting magnetic resonance imaging (MRI) system, the gradient
assembly is placed into the groove of the SC magnet. Conventional gradient coil design …
assembly is placed into the groove of the SC magnet. Conventional gradient coil design …
Simulation and analysis of the interactions between split gradient coils and a split magnet cryostat in an MRI–PET system
Splitting a magnetic resonance imaging (MRI) magnet into two halves can provide a central
region to accommodate other modalities, such as positron emission tomography (PET). This …
region to accommodate other modalities, such as positron emission tomography (PET). This …
The high-temperature gas soft measurement method based on the temperature attenuation patterns of flowing argon gas inside a cavity
G Yang, WH Wang, JR Chu, FR Zhang… - Measurement Science …, 2024 - iopscience.iop.org
The device for generating the airflow temperature signal is employed in aircraft ground
simulation. This process involves heating the argon gas by the arc discharge to generate …
simulation. This process involves heating the argon gas by the arc discharge to generate …
Mixed-dimensional elements in transient thermal analysis of gradient coils
This article proposes a numerical formulation for handling mixed-dimensional elements
embedded in a standard three-dimensional (3d) mesh, avoiding thus the volume meshing of …
embedded in a standard three-dimensional (3d) mesh, avoiding thus the volume meshing of …
Minimizing hot spot temperature in asymmetric gradient coil design
Heating caused by gradient coils is a considerable concern in the operation of MRI
scanners. Hot spots can occur in regions where the gradient coil windings are closely …
scanners. Hot spots can occur in regions where the gradient coil windings are closely …
A direct BEM to model the temperature of gradient coils
The temperature of the gradient coils is an important issue in the development of MRI
scanners. Gradient coil performance must be maximised within temperature limits imposed …
scanners. Gradient coil performance must be maximised within temperature limits imposed …