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Abstract #1865

Esophagus Imaging with Intraluminal RF Coil for Integrated MR-Endoscope System

Yuichiro Matsuoka1, Hayato Yoshinaka1, Susumu Aizawa2, Makiya Matsumoto2, Yoshinori Morita1, Hiromu Kutsumi1, Etsuko Kumamoto3, Kagayaki Kuroda4,5, Takeshi Azuma1

1Graduate School of Medicine, Kobe University, Kobe, Hyogo, Japan; 2Graduate School of Engineering, Kobe University, Kobe, Hyogo, Japan; 3Information Science and Technology Center, Kobe University, Kobe, Hyogo, Japan; 4Medical Device Development Center, Foundation for Biomedical Research and Innovation, Kobe, Hyogo, Japan; 5School of Information Science and Technology, Tokai Univesity, Hiratsuka, Japan

An endoscope shows an interior surface image of organ, but it has difficulty finding the information under tissue surface. To assist endoscopy and endoscopic surgery by providing cross-sectional images, we have developed an integrated MR-endoscope system. An intraluminal RF coil to be inserted into esophagus was designed, and MR imaging using this coil and a tracking system to detect the coil position in MRI was conducted using an excised porcine tissue. The layer structure in esophagus could be distinguished in T1- and T2-weighted images. The feasibility of esophagus imaging by the developed coil having high Q value was demonstrated.