Investigative Magnetic Resonance Imaging

Korean Society of Magnetic Resonance in Medicine (대한자기공명의과학회)
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Diagnosis of Vertebral Artery Ostial Stenosis on Contrast-Enhanced MR Angiography: Usefulness of a Thin-Slab MIP Technique

조영 증강 MR 혈관 조영 영상에서 척추동맥 기시부 협착의 진단: Thin-Slab MIP technique의 유용성

  • Kim, Sun-Mi (Department of Radiology, Kyung Hee University Hospital-Gangdong, School of Medicine, Kyung Hee University) ;
  • Lee, Deok-Hee (Department of Radiology and Research Institute of Radiology, University of Ulsan College of Medicine, Asan Medical Center) ;
  • Choi, Jin-Woo (Department of Radiology, Konkuk University Hospital, Konkuk University School of Medicine) ;
  • Choi, Byung-Se (Department of Radiology, Seoul National University Bundang Hospital) ;
  • In, Hyun-Sin (Department of Radiology, Busan Paik Hospital, Inje University College of Medicine)
  • 김선미 (강동경희대학교병원 영상의학과) ;
  • 이덕희 (울산대학교 서울아산병원 영상의학과) ;
  • 최진우 (건국대학교병원 영상의학과) ;
  • 최병세 (분당서울대학교병원 영상의학과) ;
  • 인현신 (인제대학교 부산백병원 영상의학과)
  • Received : 2010.10.28
  • Accepted : 2011.04.14
  • Published : 2011.04.30
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Abstract

It is a well-known clinical fact that contrast-enhanced magnetic resonance angiography exaggerates vertebral arterial ostial stenosis and sometimes shows pseudostenosis. Considering the clinical significance of a lesion in the posterior circulation ischemia, the importance of an accurate imaging diagnosis of ostial stenosis should not be underestimated. We were able to differentiate pseudo stenosis of the ostium from true stenosis using thin-slab maximum-intensity-projection(MIP) images which are thought to be helpful for minimizing standard full thickness MIP images.

조영 증강 MR 혈관조영 영상에서 척추동맥 기시부의 협착이 과장되어 보이며 종종 가성협착율을 보인다는 것은 잘 알려져 있다. 그러나 뇌의 후방순환의 허혈, 경색의 임상적 중요성을 고려하면, 척추동맥 기시부 협착의 정확한 진단은 매우 중요하다. 따라서 저자들은 thin-slab maximum-intensity projection(MIP) 영상을 이용하여 통상적인 full thickness MIP 영상에서 보이는 척추동맥 기시부의 진성협착과 가성협착을 구분하고자 한다.

Keywords

References

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