Bertsch Th
Dept of Physical Engineering & Institute for Innovative Technologies and Management in Medicine INSITE Med University of Applied Sciences Gelsenkirchen Germany.
Minim Invasive Ther Allied Technol. 2004 Aug;13(4):261-71. doi: 10.1080/13645700410020269.
Surgical and interventional instruments as well as implants can cause significant magnetic resonance image (MRI) artifacts. The artifacts can be used to visualize instruments, cannulae, guide wires, catheters during interventional MRI and Nitinol devices have proven to be useful for MRI procedures. Diagnostic imaging is often compromised in the area of an implant. Complete vanishing of signals occurs in close proximity or inside implants. The paper presents a fundamental evaluation of MRI artifact of Nitinol devices such as Stents, Vena Cava Filter, heart defect closure devices, cannulae, guide wire, localizer, anastomosis device, etc. in a 1.0 Tesla magnetic field. The American Society for Testing Materials (ASTM) recommendations for selection of sequences and test setup were used but the results of this paper are not sufficient for FDA approval.
手术和介入器械以及植入物会导致显著的磁共振成像（MRI）伪影。这些伪影可用于在介入MRI期间可视化器械、套管、导丝、导管，并且已证明镍钛诺装置对MRI程序很有用。植入物所在区域的诊断成像常常受到影响。在植入物附近或内部会出现信号完全消失的情况。本文对镍钛诺装置（如支架、腔静脉滤器、心脏缺损闭合装置、套管、导丝、定位器、吻合装置等）在1.0特斯拉磁场中的MRI伪影进行了基础评估。使用了美国材料与试验协会（ASTM）关于序列选择和测试设置的建议，但本文的结果不足以获得美国食品药品监督管理局（FDA）的批准。
