Managing patients with unlabeled passive implants on MR systems operating below 1.5 T

FG Shellock, MS Rosen, A Webb… - Journal of Magnetic …, 2024 - Wiley Online Library
The standard of care for managing a patient with an implant is to identify the item and to
assess the relative safety of scanning the patient. Because the 1.5 T MR system is the most …

Implantable, bioresorbable radio frequency resonant circuits for magnetic resonance imaging

G Lee, MD Does, R Avila, J Kang, KD Harkins… - Advanced …, 2024 - Wiley Online Library
Magnetic resonance imaging (MRI) is widely used in clinical care and medical research. The
signal‐to‐noise ratio (SNR) in the measurement affects parameters that determine the …

Progress in understanding radiofrequency heating and burn injuries for safer MR imaging

M Tang, T Yamamoto - Magnetic Resonance in Medical Sciences, 2023 - jstage.jst.go.jp
RF electromagnetic wave exposure during MRI scans induces heat and occasionally causes
burn injuries to patients. Among all the types of physical injuries that have occurred during …

Gradient coil and radiofrequency induced heating of orthopaedic implants in MRI: influencing factors

J Wooldridge, A Arduino, L Zilberti… - Physics in Medicine …, 2021 - iopscience.iop.org
Patients with implanted orthopaedic devices represent a growing number of subjects
undergoing magnetic resonance imaging (MRI) scans each year. MRI safety labelling is …

A transmission line model for the evaluation of MRI RF-induced fields on active implantable medical devices

J Liu, J Zheng, Q Wang, W Kainz… - IEEE Transactions on …, 2018 - ieeexplore.ieee.org
In this paper, a transmission line model is applied to evaluate magnetic resonance imaging
(MRI) radio frequency (RF)-induced fields on active implantable medical devices (AIMDs) …

Assessing the electromagnetic fields generated by a radiofrequency MRI body coil at 64 MHz: Defeaturing versus accuracy

E Lucano, M Liberti, GG Mendoza… - IEEE Transactions …, 2015 - ieeexplore.ieee.org
Goal: This study aims at a systematic assessment of five computational models of a birdcage
coil for magnetic resonance imaging (MRI) with respect to accuracy and computational cost …

Heating of hip joint implants in MRI: the combined effect of RF and switched‐gradient fields

A Arduino, U Zanovello, J Hand… - Magnetic …, 2021 - Wiley Online Library
Purpose To investigate how the simultaneous exposure to gradient and RF fields affects the
temperature rise in patients with a metallic hip prosthesis during an MRI session. Methods In …

Computational and experimental investigation of RF‐induced heating for multiple orthopedic implants

R Guo, J Zheng, YU Wang, Q Zeng… - Magnetic resonance …, 2019 - Wiley Online Library
Purpose This paper investigates the RF‐induced heating for multiple adjacent orthopedic
implants under MRI at 1.5 T and 3T exposure. When multiple implants are closely spaced to …

A contribution to MRI safety testing related to gradient‐induced heating of medical devices

A Arduino, O Bottauscio, M Chiampi… - Magnetic …, 2022 - Wiley Online Library
Purpose To theoretically investigate the feasibility of a novel procedure for testing the MRI
gradient‐induced heating of medical devices and translating the results into clinical practice …

In silico evaluation of the thermal stress induced by MRI switched gradient fields in patients with metallic hip implant

A Arduino, O Bottauscio, R Brühl… - Physics in Medicine & …, 2019 - iopscience.iop.org
This work focuses on the in silico evaluation of the energy deposed by MRI switched
gradient fields in bulk metallic implants and the consequent temperature increase in the …