Bock Michael, Wacker Frank K
Deutsches Krebsforschungszentrum, Department of Medical Physics in Radiology (E020), Heidelberg, Germany.
J Magn Reson Imaging. 2008 Feb;27(2):326-38. doi: 10.1002/jmri.21271.
Magnetic resonance imaging (MRI) offers several advantages over other imaging modalities that make it an attractive imaging tool for diagnostic and therapeutic procedures. This tremendous potential of MRI has provided the rationale for increased attention toward MR-guided endovascular interventions. MR guidance has been used recently to navigate endovascular catheters and deliver stents, vena cava filters, embolization materials, and septum closure devices. However, its potential goes beyond just copying existing procedures toward the development of new minimally invasive techniques that cannot be performed with conventional guiding techniques. Because of technical limitations and safety issues associated with some of the currently available devices, a limited number of clinical studies have been performed so far. The overall success for this developing field requires considerable interdisciplinary research within both the interventional and the MR community. Only through a combined effort can this complex technology find its way into clinical practice. This review discusses the hardware and software improvements that have helped to advance endovascular interventions under MR imaging guidance from a pure research tool to become a clinical reality. In addition, technical and safety issues specific to endovascular MR image guidance will be described and practical applications will be shown that take advantage of the benefits of MR for endovascular interventions.
与其他成像方式相比，磁共振成像（MRI）具有多种优势，这使其成为诊断和治疗程序中颇具吸引力的成像工具。MRI的这种巨大潜力为人们更加关注磁共振引导的血管内介入治疗提供了理论依据。最近，磁共振引导已被用于引导血管内导管以及输送支架、腔静脉滤器、栓塞材料和间隔封堵装置。然而，其潜力不仅限于复制现有程序，还在于开发新的微创技术，而这些技术是传统引导技术无法实现的。由于与一些现有设备相关的技术限制和安全问题，到目前为止，仅开展了有限数量的临床研究。这个新兴领域的全面成功需要介入领域和磁共振领域进行大量的跨学科研究。只有通过共同努力，这项复杂技术才能进入临床实践。本综述讨论了硬件和软件方面的改进，这些改进有助于推动在磁共振成像引导下的血管内介入治疗从单纯的研究工具发展成为临床现实。此外，还将描述血管内磁共振图像引导特有的技术和安全问题，并展示利用磁共振优势进行血管内介入治疗的实际应用。
