Preparation‐based B mapping in the heart using Bloch–Siegert shifts
Purpose To develop and evaluate a robust cardiac B 1+ B _1^+ mapping sequence at 3 T,
using Bloch–Siegert shift (BSS)‐based preparations. Methods A longitudinal magnetization …
using Bloch–Siegert shift (BSS)‐based preparations. Methods A longitudinal magnetization …
Head‐and‐neck multichannel B1+ mapping and RF shimming of the carotid arteries using a 7T parallel‐transmit head coil
Purpose Neurovascular MRI suffers from a rapid drop in B1+ into the neck when using
transmit head coils at 7 T. One solution to improving B1+ magnitude in the major feeding …
transmit head coils at 7 T. One solution to improving B1+ magnitude in the major feeding …
Deep learning‐based whole‐brain B1+‐mapping at 7T
Purpose This study investigates the feasibility of using complex‐valued neural networks
(NNs) to estimate quantitative transmit magnetic RF field (B1+) maps from multi‐slice …
(NNs) to estimate quantitative transmit magnetic RF field (B1+) maps from multi‐slice …
Optimized interferometric encoding of presaturated TurboFLASH B1 mapping for parallel transmission MRI at 7 T: Preliminary application for quantitative T1 …
A Destruel, F Mauconduit, A Massire… - Magnetic …, 2023 - Wiley Online Library
Purpose The acquisition of accurate B1 maps is critical for parallel transmit techniques (pTx).
The presaturated turboFLASH (satTFL) method has been widely used in combination with …
The presaturated turboFLASH (satTFL) method has been widely used in combination with …
Fast 3D 31P mapping with a weighted stack of spiral trajectory at 7 T
Abstract Purpose Phosphorus MRS (31P MRS) enables noninvasive assessment of energy
metabolism, yet its application is hindered by sensitivity limitations. To overcome this, often …
metabolism, yet its application is hindered by sensitivity limitations. To overcome this, often …
Accelerated B 1+ B _1^+ mapping and robust parallel transmit pulse design for heart and prostate imaging at 7 T
N Egger, S Nagelstraßer, S Wildenberg… - Magnetic …, 2024 - Wiley Online Library
Purpose To investigate the impact of reduced k‐space sampling on B 1+ B _1^+ mapping
and the resulting impact on phase shimming and dynamic/universal parallel transmit (pTx) …
and the resulting impact on phase shimming and dynamic/universal parallel transmit (pTx) …
Accelerated 3D multi‐channel mapping at 7 T for the brain and heart
Purpose To acquire accurate volumetric multi‐channel B 1+ B _1^+ maps in under 14 s
whole‐brain or 23 heartbeats whole‐heart for parallel transmit (pTx) applications at 7 T …
whole‐brain or 23 heartbeats whole‐heart for parallel transmit (pTx) applications at 7 T …
A preparation pulse for fast steady state approach in Actual Flip angle Imaging
Abstract Background Actual Flip angle Imaging (AFI) is a sequence used for B1 mapping,
also embedded in the Variable flip angle with AFI for simultaneous estimation of T1, B1 and …
also embedded in the Variable flip angle with AFI for simultaneous estimation of T1, B1 and …
Head-and-neck multi-channel B1+ mapping and carotid arteries RF shimming using a parallel transmit head coil
Purpose: Neurovascular MRI suffers from a rapid drop in B1+ into the neck when using
transmit head coils at 7T. One solution to improving B1+ magnitude in the major feeding …
transmit head coils at 7T. One solution to improving B1+ magnitude in the major feeding …
Towards a relaxation-based MR-oximetry technique for the measurement of tumor hypoxia
RC Bider - 2024 - escholarship.mcgill.ca
Hypoxia, a common feature of solid tumors, is typical of aggressive cancers and leads to
poorer outcomes in radiation therapy and some types of chemotherapy. Imaging tumour …
poorer outcomes in radiation therapy and some types of chemotherapy. Imaging tumour …