Journal of the Korean Society of Radiology (한국방사선학회논문지)

The Korean Society of Radiology (한국방사선학회)
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Analysis of Susceptibility Artifact Reduction in Titanium Alloy Implant Fixture with Bandwidth Variation in MRI Scans

자기공명영상검사에서 수신대역폭 변화에 따른 티타늄 합금 임플란트 지대주의 자화율 인공물 감소 분석

  • Min-Ho Lee (Department of Radiological Science, College of Health Sciences, Eulji University) ;
  • Jun-Young Yoon (Department of Radiological Science, College of Health Sciences, Eulji University) ;
  • Young-Yun Jo (Department of Radiological Science, College of Health Sciences, Eulji University) ;
  • Chan-Woo Lee (Department of Radiological Science, College of Health Sciences, Eulji University) ;
  • Jae-Hu Byeon (Department of Diagnostic Radiology, Kyung-Hee University Hospital at Gang-dong) ;
  • Yeong-Cheol Heo (Department of Radiological Science, College of Health Sciences, Eulji University)
  • 이민호 (을지대학교 보건과학대학 방사선학과) ;
  • 윤준영 (을지대학교 보건과학대학 방사선학과) ;
  • 조영윤 (을지대학교 보건과학대학 방사선학과) ;
  • 이찬우 (을지대학교 보건과학대학 방사선학과) ;
  • 변재후 (강동경희대학교병원 영상의학과) ;
  • 허영철 (을지대학교 보건과학대학 방사선학과)
  • Received : 2024.10.15
  • Accepted : 2024.11.30
  • Published : 2024.11.30
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Abstract

The purpose of this study was to quantitatively analyze the effect of Bandwidth changes on susceptibility artifacts in MRI scans. A custom-made phantom was designed with an implanted dental fixture, and the examination was conducted using a 3.0 Tesla MRI and a Turbo Spin Echo sequence, with the Bandwidth increased incrementally from about 150 Hz/Px to 500 Hz/Px. The results demonstrated that as the Bandwidth increased, the length of the susceptibility artifact significantly decreased. This finding suggests that adjusting Bandwidth can effectively reduce susceptibility artifacts in MRI scans of patients with dental implants. Further research applying these findings to different implant materials is expected to broaden the clinical applicability of this method.

본 연구에서는 수신대역폭의 변화가 자화율 인공물에 미치는 영향을 정량적으로 분석하고자 하였다. 자체 제작한 팬텀에 임플란트 지대주를 설치하고 3.0 Tesla MRI와 고속스핀에코 시퀀스를 이용하여 수신대역폭을 약 150 Hz/Px에서 500 Hz/Px까지 증가시켜 검사하였다. 연구 결과 수신대역폭을 증가할수록 자화율 인공물의 길이가 유의미하게 감소하는 경향을 보였다. 따라서 임플란트가 삽입된 환자의 MRI 검사에서 수신대역폭 조정이 자화율 인공물을 줄여줄 수 있음을 의미하며 추후 다양한 임플란트 재질에 적용하는 추가 연구를 통해 더 넓은 임상적 적용 가능성을 제시할 수 있을 것으로 기대된다.

Keywords

Acknowledgement

본 연구는 2024 을지대학교 대학혁신지원사업지원을 받아 진행한 연구임

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