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May 23, 2025Magnetic Resonance in Medicine

Impact of lateral movement of patients on radiofrequency ‐induced heating of active and passive implantable medical devices at 3T MRI

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Why the study?

The implications of lateral patient position on radiofrequency-induced heating of active and passive implantable medical devices in a wide-bore 3T MRI system were unknown.

Does lateral patient position affect RF-induced heating of implantable medical devices during 3T MRI?

Population

Three commercially available AIMDs and four orthopedic PIMDs in human body models and phantoms

Comparison

Different lateral phantom shifts and patient positions inside a wide-bore 3T MRI scanner

Design

In vitro simulation and experimental validation study

Authors

MAMir Khadiza AkterASAo ShenMIMd Zahidul Islam

Discussion

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Overview

Lateral positioning may increase peripheral device heating risk in 3T MRI; leaves open human validation of position-specific safety.

Structured PICO

Does lateral patient position affect RF-induced heating of implantable medical devices during 3T MRI?

P
Population
In vitro simulations and experimental validation using human body models (Duke, Ella, Fats) and phantoms with active and passive implantable medical devices
I
Intervention
Lateral phantom shifts/patient position variations in a wide-bore 3T MRI scanner
C
Comparator
Central position or different lateral shifts
O
Outcome
Radiofrequency (RF)-induced heating (temperature rise) and specific absorption rate (SAR) near the devicessafety

Lateral patient positioning in wide-bore 3T MRI scanners can significantly increase RF-induced heating of implantable medical devices, particularly peripheral ones, impacting MR conditional labeling.

Cite This Study

Akter et al. (2025) studied this question.

synapsesocial.com/papers/6a0c7984c63d985fc0885941https://doi.org/10.1002/mrm.30578
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