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Abstract #0870

Visualization of porcine gastric ulcer in vivo using intracavitary RF probe and its navigation system

Yuichiro Matsuoka 1,2 , Yoshinori Morita 3 , Yoshiki Hashioka 4 , Etsuko Kumamoto 5 , Hiromu Kutsumi 2 , Takeshi Azuma 2 , and Kagayaki Kuroda 6

1 Center for Information and Neural Networks, National Institute of Information and Communications Technology, Suita, Japan, 2 Department of Internal Medicine, Kobe University Graduate School of Medicine, Kobe, Japan, 3 Department of Gastroenterology, Kobe University School of Medicine, Kobe, Japan, 4 Faculty of Engineering, Kobe University, Kobe, Japan, 5 Information Science and Technology Center, Kobe University, Kobe, Japan, 6 School of Information Science and Technology, Tokai University, Hiratsuka, Japan

An integrated MR-endoscope system that provides high quality MR images with an endoscopic view and information of the scope location has been developed to improve the accuracy and safety of endoscopy and endoscopic surgeries. To examine the feasibility of this system, the MR imaging of a gastric ulcer in animal experiments was conducted in vivo. Using an intra-cavitary RF coil for 1.5T-MRI with navigation, the gastric ulcer region was visualized in T1- and T2-weighted images with sufficient SNR and CNR. These MR images could correspond to a histological specimen of ulcer region. Therefore, the feasibility of this system was demonstrated.

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