Asymmetric Scanner Design for Interventional Scenarios in Magnetic Particle Imaging
Asymmetric Scanner Design for Interventional Scenarios in Magnetic Particle Imaging
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DOI：
10.1109/tmag.2014.2337931
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发表时间：
2015-02-01
影响因子：
2.1
通讯作者：
Buzug, Thorsten M.
中科院分区：
文献类型：
--
作者：
Kaethner, Christian;Ahlborg, Mandy;Buzug, Thorsten M.
磁粉成像是一种获取有关磁性纳米颗粒空间分布的定量信息的成像方式。结合良好的空间和时间分辨率，由于没有使用有害辐射的事实，成像技术提供了医疗应用方面的可能性。因此，强制将使用过的器械可视化的介入场景是一个非常合适的应用领域。本文描述了一项可行性研究的结果，其中一种新的基于近似椭圆线圈的单侧线圈布置被设计成集成到患者手术台中。使用这样的线圈完全符合良好的患者接触、大视野(FOV)和手术台可用空间的要求。纵横比的小变化会导致放大的FOV在所有方向上都具有足够的渐变强度。
Magnetic particle imaging is an imaging modality that acquires quantitative information about the spatial distribution of magnetic nanoparticles. In combination with an excellent spatial and temporal resolution and due to the fact that no harmful radiation is used, the imaging technique offers possibilities with respect to medical application. As such, interventional scenarios, where it is mandatory to visualize the used instruments, are a perfectly suitable area of application. This paper describes the results of a feasibility study where a novel single-sided coil arrangement based on approximated elliptical coils is designed to be integrated into a patient table. Using such coils perfectly matches the requirements of good patient access, large field of view (FOV), and available space in the table. A small change in the aspect ratio leads to an enlarged FOV with sufficient gradient strength in all directions.