Proceedings of the KSMRM Conference (대한자기공명의과학회:학술대회논문집)

Korean Society of Magnetic Resonance in Medicine (대한자기공명의과학회)
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Development of TEM Coil for Animal Experiments at 3T MRI System

  • Chu, Myung-Ja (Departments of Biomedical Engineering, College of Medicine, The Catholic University of Korea) ;
  • Choe, Bo-Young (Departments of Biomedical Engineering, College of Medicine, The Catholic University of Korea) ;
  • Kim, Kyung-Nam (Medinus Co. LTD. Korea) ;
  • Chung, Sung-Taek (Medinus Co. LTD. Korea) ;
  • Oh, Chang-Hyun (Department of Electronics and Information Engineering, Korea University) ;
  • Lee, Hyoung-Koo (Departments of Biomedical Engineering, College of Medicine, The Catholic University of Korea) ;
  • Suh, Tae-Suk (Departments of Biomedical Engineering, College of Medicine, The Catholic University of Korea)
  • Published : 2002.11.01
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Abstract

Purpose： The purpose of this study is to describe a distributed circuit approach to high frequency volume coil design illustrated with specific coils built accordingly and results obtained from animal studies at 3.0 tesla. Method： All experiments were conducted on 3T MRI system (Medinus Co., Ltd. Korea). The tuned TEM resonator measures 15cm outer diameter. by 10cm inside diameter by 30cm in length. The inside diameter and length were determined by animals body or head size (eg. rats or small dogs, etc.) while the outer diameter was chosen for compactness with some sacrifice of the optimal coil Q predicted for a larger cavity. A spin echo sequence with a TR/TE/flip angle=500/12.4ms/$75^{\circ}$was used to check image qualities with phantom. The breed of rat which used for animal images was Sprague-dawley(SD) and was anesthetic using ketamin hydrochloride 75mg/kg.

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