Keywords: Safety, Safety
Motivation: In active implantable medical devices (AIMDs), electrical shorts may occur either between electrodes of two leads in multi-lead systems (inter-lead shorts), or within the AIMD header due to incomplete lead insertion (intra-lead shorts).
Goal(s): Whether these shorts invalidate the originally-established MR safety condition for RF-induced heating?
Approach: The RF-induced heating for three shorted-lead cases were investigated. Device heating models (transfer functions) and RF-induced heating were measured for 1.5T MR systems.
Results: Though the intra-lead short case exhibited a similar transfer function (TF) and RF-induced heating to non-shorted leads, inter-lead shorts had significant impact on the RF-induced heating.
Impact: This research improves MRI safety for patients with active implantable medical devices (AIMDs) by studying the effects of electrical shorts.
How to access this content:
For one year after publication, abstracts and videos are only open to registrants of this annual meeting. Registrants should use their existing login information. Non-registrant access can be purchased via the ISMRM E-Library.
After one year, current ISMRM & ISMRT members get free access to both the abstracts and videos. Non-members and non-registrants must purchase access via the ISMRM E-Library.
After two years, the meeting proceedings (abstracts) are opened to the public and require no login information. Videos remain behind password for access by members, registrants and E-Library customers.
Keywords