Ultra-fast MRI For Cardiovascular Applications

心血管应用的超高速磁共振成像通过开发新的成像方法和临床前程序的实施，实时介入性磁共振成像技术不断得到改进。我们实现了缩小视场投影重建技术和自选通技术，这是在无线选通的道路上的发展。这种成像技术已经在MRI引导下的主动脉瘤的血管内修复术中得到了证实。我们还实现了一种利用稳态自由进动成像分离脂肪和水信号的新的有效方法，并演示了在单个心跳中进行心肌标记。这两个发展都将被证明是有用的，当在治疗应用期间实时成像功能时，或用于实时压力测试。

ULTRA-FAST MRI FOR CARDIOVASCULAR APPLICATIONS Realtime interventional MRI techniques continue to be improved through the development of new imaging methods and pre-clinical implementation of procedures. We have implemented a reduced field of view projection reconstruction technique and a self gated technique which is a development along the way to wireless gating. The imaging techniques have been demonstrated in MRI guided endovasucalar repair of aortic aneurysm. We have also implemented a novel efficient method for the separation of fat and water signals with steady state free precession imaging, and we have demonstrated myocardial tagging in a single heartbeat. Both developments will prove useful when imaging function in realtime during the application of therapy, or for realtime stress testing.