Effect of field strength on RF power deposition near conductive leads: A simulation study of SAR in DBS lead models during MRI at 1.5 T—10.5 T
Background Since the advent of magnetic resonance imaging (MRI) nearly four decades
ago, there has been a quest for ever-higher magnetic field strengths. Strong incentives exist …
ago, there has been a quest for ever-higher magnetic field strengths. Strong incentives exist …
Deep learning‐based local SAR prediction using B1 maps and structural MRI of the head for parallel transmission at 7 T
Purpose To predict subject‐specific local specific absorption rate (SAR) distributions of the
human head for parallel transmission (pTx) systems at 7 T. Theory and methods …
human head for parallel transmission (pTx) systems at 7 T. Theory and methods …
A comparative study of MRI-induced RF heating in pediatric and adult populations with epicardial and endocardial implantable electronic devices
Patients with congenital heart defects, inherited arrhythmia syndromes, and congenital
disorders of cardiac conduction often receive a cardiac implantable electronic device …
disorders of cardiac conduction often receive a cardiac implantable electronic device …
Age matters: a comparative study of RF heating of epicardial and endocardial electronic devices in pediatric and adult phantoms during cardiothoracic MRI
This study focused on the potential risks of radiofrequency-induced heating of cardiac
implantable electronic devices (CIEDs) in children and adults with epicardial and …
implantable electronic devices (CIEDs) in children and adults with epicardial and …
Artifacts can be deceiving: the actual location of deep brain stimulation electrodes differs from the artifact seen on magnetic resonance images
Introduction: Deep brain stimulation (DBS) is a common treatment for a variety of
neurological and psychiatric disorders. Recent studies have highlighted the role of …
neurological and psychiatric disorders. Recent studies have highlighted the role of …
A workflow for predicting radiofrequency‐induced heating around bilateral deep brain stimulation electrodes in MRI
NIH Zulkarnain, A Sadeghi‐Tarakameh… - Medical …, 2024 - Wiley Online Library
Background Heating around deep brain stimulation (DBS) in magnetic resonance imaging
(MRI) occurs when the time‐varying electromagnetic (EM) fields induce currents in the …
(MRI) occurs when the time‐varying electromagnetic (EM) fields induce currents in the …
Safety of magnetic resonance imaging in patients with deep brain stimulation
A substantial number of patients with deep brain stimulation (DBS) implants are expected to
require a magnetic resonance imaging (MRI) after their surgery; however, DBS devices …
require a magnetic resonance imaging (MRI) after their surgery; however, DBS devices …
Computational Investigation of the Factors That Affect Tangential Electric Fields along Cardiac Lead Paths inside MRI Birdcage Coils
G Tsanidis, T Samaras - Applied Sciences, 2024 - mdpi.com
Featured Application The existing literature has already examined the factors influencing
power deposition at the tip of an active implant through in vitro or in silico studies on …
power deposition at the tip of an active implant through in vitro or in silico studies on …
Modifying the trajectory of epicardial leads can substantially reduce MRI‐induced RF heating in pediatric patients with a cardiac implantable electronic device at 1.5 T
Purpose After epicardial cardiac implantable electronic devices are implanted in pediatric
patients, they become ineligible to receive MRI exams due to an elevated risk of RF heating …
patients, they become ineligible to receive MRI exams due to an elevated risk of RF heating …
MRI of implantation sites using parallel transmission of an optimized radiofrequency excitation vector
Postoperative care of orthopedic implants is aided by imaging to assess the healing process
and the implant status. MRI of implantation sites might be compromised by radiofrequency …
and the implant status. MRI of implantation sites might be compromised by radiofrequency …