Development of combined system between open MR and Xray angiography

自2001年以来，我们开发了开放式MR-X射线透视组合系统。它由0.3T带旋转床的开放式MR成像仪（日立）和具有DSA功能的c臂x射线透视系统组成。旋转床使我们能够检查MRI和x线透视与同一位置的病人对床。经过基本的可行性研究和机构审查委员会的许可，我们成功地将该系统用于mr - x射线联合IVR头颈部病理。临床还进行了动脉内注射对比增强MR血管造影（IA-MRDSA）。我们还在0.3T开放式MR系统上制作了单次扩散加权图像和灌注MR。它们是可行的，可以检测亚急性梗死。

We developed an open MR-X ray fluoroscopic combination system since 2001. It consists of a 0.3T open MR imager (Hitachi) with rotating bed, and a C-arm X-ray fluoroscopic system with DSA capability. The rotating bed enables us to examine both MRI and X-ray fluoroscopy with the same position of the patient against the bed.After fundamental feasibility studies and permission from institutional review board, we used this system in combined MR-Xray IVR for head and neck pathology successfully. Intra-arterially injected contrast-enhanced MR angiography (IA-MRDSA) was also performed clinically.We also developed single-shot diffusion-weighted images and perfusion MR on 0.3T open MR system. They were feasible and could detect subacute infarction.