Fundamental research about the MR intervention without radiation exposure

2015 Fiscal Year Final Research Report

• Project/Area Number: 25462216
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Neurosurgery
• Research Institution: Kobe University
• Principal Investigator: FUJITA ATSUSHI 神戸大学, 医学(系)研究科(研究院), 助教 (60379360)
• Project Period (FY): 2013-04-01 – 2016-03-31
• Keywords: MR imaging / catheter tracking / interventional radiology

Outline of Final Research Achievements

During catheter intervention, we are now using X-ray fluoroscopic images to guide various devices to the pathologic lesion. As the number of catheter interventions have been increasing, the patient’s radiation exposure also continue to grow. If we can guide these devices by magnetic resonance fluoroscopy, we would achieve the ideal treatment without radiation exposure for patients. In this study, we investigated the visibility of both the microcatheter and microguidewire by various imaging. Among these images, fully refocused steady-state free precession (SSFP) was thought to be feasible to the catheter tracking with good contrast-noise ratio (CNR). For fluoroscopic imaging, we also investigated the visibility and trackability of these devices. While SSFP imaging could track the microcatheter with acceptable CNR, it was difficult to track the microguidewire with acceptable visibility.

Free Research Field

脳神経外科学