Proceedings of the KOSOMBE Conference (대한의용생체공학회:학술대회논문집)

The Korean Society of Medical and Biological Engineering (대한의용생체공학회)
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Study on Analysis of Acoustic Noise in MRI

자기 공명 영상법에서의 소음 분석에 관한 연구

  • Park, S.H. (Department of Electrical Engineering, Korea Advanced Institute of Science & Technology) ;
  • Chung, S.T. (Department of Electrical Engineering, Korea Advanced Institute of Science & Technology) ;
  • Chung, S.C. (Department of Electrical Engineering, Korea Advanced Institute of Science & Technology) ;
  • Cho, Z.H. (Department of Electrical Engineering, Korea Advanced Institute of Science & Technology) ;
  • Moon, C.W. (Medical Electronics Team, Samsung Advanced Institute of Technology) ;
  • Yi, J.H. (Medical Electronics Team, Samsung Advanced Institute of Technology) ;
  • Sin, C.H. (Department of Diagnostic Imaging, Samsung Medical Center)
  • 박세혁 (한국과학기술원 전기 및 전자공학과) ;
  • 정성택 (한국과학기술원 전기 및 전자공학과) ;
  • 정순철 (한국과학기술원 전기 및 전자공학과) ;
  • 조장희 (한국과학기술원 전기 및 전자공학과) ;
  • 문치웅 (삼성종합기술원 의료기기연구실) ;
  • 이정한 (삼성종합기술원 의료기기연구실) ;
  • 신창희 (삼성의료원 영상의학실)
  • Published : 1997.11.28
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Abstract

Acoustic or sound noise due to gradient pulsing has been one of the problems in MRI, both in patient scanning as well as in many areas of psychiatric and neuroscience research, such as unctional MRI (fMRI). Our recent observations in MRI or the visual and motor cortex show very different results with sound noise in comparison with the results obtained without sound noise. Although a number of ideas has been suggested in the literature about the possible elimination or reduction of sound noise, progress has been slow due to the basic role of gradient pulsing in MR imaging. Therefore, we report on some typical behavior of sound noise observed from MRI scanners and the analyses of their characteristics. Data are obtained both from a commercial MRI scanner (GE Signa 1.5-T EPI system).

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