Initial assessment of PNS safety for interventionalists during image-guided procedures.

IF 2 4区医学 Q3 RADIOLOGY, NUCLEAR MEDICINE & MEDICAL IMAGING Magnetic Resonance Materials in Physics, Biology and Medicine Pub Date : 2025-02-11 DOI:10.1007/s10334-025-01228-4

Feng Jia, Axel Vom Endt, Philipp Amrein, Maximilian Frederik Russe, Heiko Rohdjess, Martino Leghissa, Maxim Zaitsev, Sebastian Littin

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引用次数: 0

Abstract

Purpose: This study investigates peripheral nerve stimulation (PNS) safety thresholds for health professionals performing MRI procedures and the variation of arm rotations in close vicinity to the magnet bore.

Methods: Employing two posable human body models, this research utilized quasi-static electromagnetic calculations and neurodynamic simulations to assess PNS thresholds. Different arm rotations are compared for standing interventionalist's posture assuming the supine patient position, typical for medical interventions inside MRI devices.

Results: This study reveals that arm rotations in standing postures result in variations in PNS thresholds. However, for all the arm poses considered, the threshold was at least 2.4 times higher compared to the patient position. Differences in PNS thresholds and electric field distributions were observed between male and female models.

Conclusions: The findings suggest that when the PNS thresholds for imaging subjects are not exceeded, it is likely that a subject leaning into the bore will also not experience PNS. However, variations in PNS thresholds due to arm movements highlight the importance of considering body posture in MRI safety protocols.

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来源期刊

Magnetic Resonance Materials in Physics, Biology and Medicine 医学-核医学

CiteScore

4.60

自引率

0.00%

发文量

审稿时长

>12 weeks

期刊介绍： MAGMA is a multidisciplinary international journal devoted to the publication of articles on all aspects of magnetic resonance techniques and their applications in medicine and biology. MAGMA currently publishes research papers, reviews, letters to the editor, and commentaries, six times a year. The subject areas covered by MAGMA include: advances in materials, hardware and software in magnetic resonance technology, new developments and results in research and practical applications of magnetic resonance imaging and spectroscopy related to biology and medicine, study of animal models and intact cells using magnetic resonance, reports of clinical trials on humans and clinical validation of magnetic resonance protocols.