A 16‐channel combined loop‐dipole transceiver array for 7 T esla body MRI
Purpose To develop a 16‐channel transceive body imaging array at 7.0 T with improved
transmit, receive, and specific absorption rate (SAR) performance by combining both loop …
transmit, receive, and specific absorption rate (SAR) performance by combining both loop …
Toward imaging the body at 10.5 tesla
Purpose To explore the potential of performing body imaging at 10.5 Tesla (T) compared
with 7.0 T through evaluating the transmit/receive performance of similarly configured dipole …
with 7.0 T through evaluating the transmit/receive performance of similarly configured dipole …
Measurement of SAR‐induced temperature increase in a phantom and in vivo with comparison to numerical simulation
Purpose To compare numerically simulated and experimentally measured temperature
increase due to specific energy absorption rate from radiofrequency fields. Methods …
increase due to specific energy absorption rate from radiofrequency fields. Methods …
Introduction of the snake antenna array: geometry optimization of a sinusoidal dipole antenna for 10.5 T body imaging with lower peak SAR
B Steensma, PF van de Moortele… - Magnetic resonance …, 2020 - Wiley Online Library
Purpose To improve imaging performance for body MRI with a local transmit array at 10.5 T,
the geometry of a dipole antenna was optimized to achieve lower peak specific absorption …
the geometry of a dipole antenna was optimized to achieve lower peak specific absorption …
Numerical evaluation of image homogeneity, signal‐to‐noise ratio, and specific absorption rate for human brain imaging at 1.5, 3, 7, 10.5, and 14T in an 8‐channel …
Purpose To predict signal‐to‐noise ratio (SNR) trends and absorbed energy in magnetic
resonance imaging (MRI) of the brain up to 14T. Materials and Methods A human head in an …
resonance imaging (MRI) of the brain up to 14T. Materials and Methods A human head in an …
Improved 1H body imaging at 10.5 T: Validation and VOP‐enabled imaging in vivo with a 16‐channel transceiver dipole array
Purpose To increase the RF coil performance and RF management for body imaging at 10.5
T by validating and evaluating a high‐density 16‐channel transceiver array, implementing …
T by validating and evaluating a high‐density 16‐channel transceiver array, implementing …
Individualized SAR calculations using computer vision‐based MR segmentation and a fast electromagnetic solver
E Milshteyn, G Guryev… - Magnetic resonance …, 2021 - Wiley Online Library
Purpose We propose a fast, patient‐specific workflow for on‐line specific absorption rate
(SAR) supervision. An individualized electromagnetic model is created while the subject is …
(SAR) supervision. An individualized electromagnetic model is created while the subject is …
Fast computation of soft tissue thermal response under deformation based on fast explicit dynamics finite element algorithm for surgical simulation
Background and objectives During thermal heating surgical procedures such as
electrosurgery, thermal ablative treatment and hyperthermia, soft tissue deformation due to …
electrosurgery, thermal ablative treatment and hyperthermia, soft tissue deformation due to …
Direct control of the temperature rise in parallel transmission by means of temperature virtual observation points: simulations at 10.5 Tesla
Purpose A method using parallel transmission to mitigate B1+ inhomogeneity while explicitly
constraining the temperature rise is reported and compared with a more traditional SAR …
constraining the temperature rise is reported and compared with a more traditional SAR …
Machine learning RF shimming: Prediction by iteratively projected ridge regression
Purpose To obviate online slice‐by‐slice RF shim optimization and reduce mapping
requirements for patient‐specific RF shimming in high‐field magnetic resonance imaging …
requirements for patient‐specific RF shimming in high‐field magnetic resonance imaging …