Ultra-fast MRI For Cardiovascular Applications

通过开发新的成像方法和临床前实施程序，实时介入MRI技术不断得到改进。我们实现了一种简化视场投影重建技术和一种自门控技术，这是无线门控的发展方向。该成像技术已在MRI引导下血管内修复主动脉瘤中得到证实。我们还实现了一种新的高效方法，用于分离脂肪和水信号与稳态自由进动成像，我们已经证明了心肌标记在单次心跳。这两项发展将被证明是有用的成像在应用治疗过程中的实时功能，或实时压力测试。

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.