影像引导过程中介入医师PNS安全性的初步评估。

IF 2 4区医学 Q3 RADIOLOGY, NUCLEAR MEDICINE & MEDICAL IMAGING

Magnetic Resonance Materials in Physics, Biology and Medicine Pub Date : 2025-04-01 Epub 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

摘要

目的：本研究探讨外周神经刺激（PNS）安全阈值的卫生专业人员执行MRI程序和变化的手臂旋转接近磁铁孔。方法：采用两种可能的人体模型，采用准静态电磁计算和神经动力学模拟评估PNS阈值。不同的手臂旋转比较站立的介入医生的姿势假设仰卧的病人位置，典型的医疗干预在MRI设备内。结果：本研究揭示了站立姿势的手臂旋转导致PNS阈值的变化。然而，对于所有考虑的手臂姿势，阈值至少比患者的姿势高2.4倍。观察男女模型PNS阈值和电场分布的差异。结论：研究结果表明，当不超过成像受试者的PNS阈值时，受试者很可能也不会经历PNS。然而，由于手臂运动引起的PNS阈值的变化强调了在MRI安全方案中考虑身体姿势的重要性。

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

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.