在 7 特斯拉核磁共振成像扫描仪上通过前庭激活诱发极度恶心。

IF 3.3 2区医学 Q1 RADIOLOGY, NUCLEAR MEDICINE & MEDICAL IMAGING

Journal of Magnetic Resonance Imaging Pub Date : 2024-11-07 DOI:10.1002/jmri.29656

Andrew J Fagan, Kimberly K Amrami, Robert E Watson, Muhammad A R Anjum, Kirk M Welker

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引用次数: 0

摘要

四名受试者俯卧在 7T 扫描台上，手臂伸过头顶进行手腕检查，头部位于磁体中轴线上方约 10-20 厘米处，受试者感到极度恶心。通过当前 7T 磁共振成像扫描仪磁体的大静态和空间场梯度运动通常会引起轻微的前庭激活，大多数人都能很好地承受。然而，当头部偏离轴线时，头部会穿过更大、变化更快的磁场区域，在当前的研究中，这些磁场足以诱发极其严重的恶心症状。确保头部保持在轴上可减轻这种影响。

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Induction of Extremely Severe Nausea via Vestibular Activation on a 7 Tesla MRI Scanner.

Extremely severe nausea was experienced by four subjects positioned prone on a 7T scanner table with their arm extended overhead for a wrist examination and their head positioned approximately 10-20 cm above the magnet's central axis. Movement through the large static and spatial field gradients of current 7T MRI scanner magnets typically causes mild vestibular activation which is well tolerated by most individuals. However, when positioned off-axis, the head moves through regions of even larger and more rapidly changing magnetic fields which in the current study were sufficient to induce the extremely severe nausea. Ensuring the head remains on-axis mitigates this effect.

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来源期刊

Journal of Magnetic Resonance Imaging 医学-核医学

CiteScore

9.70

自引率

6.80%

发文量

494

审稿时长

2 months

期刊介绍： The Journal of Magnetic Resonance Imaging (JMRI) is an international journal devoted to the timely publication of basic and clinical research, educational and review articles, and other information related to the diagnostic applications of magnetic resonance.