RF heating of deep brain stimulation implants in open-bore vertical MRI systems: A simulation study with realistic device configurations.

ABSTRACT:

Purpose

Patients with deep brain stimulation (DBS) implants benefit highly from MRI, however, access to MRI is restricted for these patients because of safety hazards associated with RF heating of the implant. To date, all MRI studies on RF heating of medical implants have been performed in horizontal closed-bore systems. Vertical MRI scanners have a fundamentally different distribution of electric and magnetic fields and are now available at 1.2T, capable of high-resolution structural and functional MRI. This work presents the first simulation study of RF heating of DBS implants in high-field vertical scanners.

Methods

We performed finite element electromagnetic simulations to calculate specific absorption rate (SAR) at tips of DBS leads during MRI in a commercially availab

SUBMITTER: Golestanirad L 

PROVIDER: S-EPMC7047541 | biostudies-literature | 2020 Jun

REPOSITORIES: biostudies-literature