Investigative Magnetic Resonance Imaging

Korean Society of Magnetic Resonance in Medicine (대한자기공명의과학회)
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The Value of Additional Cervicothoracic Spine Sagittal T2-weighted Images Included in Routine Lumbar Spine MR Imaging

요추 MR영상에 포함된 경흉추 시상T2강조영상의 효용성 평가

  • Seo, Jiwoon (Department of Radiology, Seoul National University Bundang Hospital) ;
  • Park, So Young (Department of Radiology, Seoul National University Bundang Hospital) ;
  • Lee, Joon Woo (Department of Radiology, Seoul National University Bundang Hospital) ;
  • Lee, Guen Young (Department of Radiology, Seoul National University Bundang Hospital) ;
  • Kang, Heung Sik (Department of Radiology, Seoul National University Bundang Hospital)
  • 서지운 (분당서울대학교병원 영상의학과) ;
  • 박소영 (분당서울대학교병원 영상의학과) ;
  • 이준우 (분당서울대학교병원 영상의학과) ;
  • 이근영 (분당서울대학교병원 영상의학과) ;
  • 강흥식 (분당서울대학교병원 영상의학과)
  • Received : 2012.10.28
  • Accepted : 2013.06.12
  • Published : 2013.06.30
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Abstract

Purpose : To evaluate the usefulness of cervicothoracic spine sagittal T2-weighted images (CT SAG T2WIs) included in routine lumbar spine MRI. Materials and Methods: Institutional review board approval was obtained and informed consents were waived for this retrospective study. The study group comprised 2,113 patients who underwent lumbar spine MRI from January 2005 to December 2005. CT SAG T2WIs were added in the routine lumbar spine MRIs. Radiologic reports were reviewed retrospectively for pathologic lesions on CT SAG T2WIs by one radiologist. Information of additional cervical or thoracic spine MRI and/or CT for further evaluation of positive findings on CT SAG T2WIs and their treatment were collected by retrospectively reviewing medical records. Results: The CT SAG T2WIs revealed 142 pathologic lesions in 139 (6.58%) of the 2,113 patients. They were easily obtained without positional change in a scan time of less than 2 minutes. Additional cervical or thoracic spine MRI and/or CT for positive findings on CT SAG T2WIs were performed in 13 patients. Seven patients underwent surgical treatment. Conclusion: CT SAG T2WIs included in routine lumbar spine MRI were useful in finding the pathologic lesions in cervicothoracic spine for the patients who assumed to have lesions in lumbar spine.

목적: 요추 MR 영상에 추가된 경흉추 시상T2강조영상(CT SAG T2WI)의 임상적 효용성을 평가하고자 한다. 대상과 방법: 2005년 1월부터 2005년 12월까지 요추 MRI를 시행하였던 2,113명의 환자를 대상으로 하였다. 경흉추 시상T2강조영상을 후향적으로 분석하였고, 의무기록을 후향적으로 검토하여 경추 또는 흉추 병변의 추가적인 평가를 위한 MRI 또는 CT 시행여부와 이러한 병변에 대한 치료 및 경과를 알아보았다. 결과: 2,113명중 139명의 환자에게서 총 142개의 병변이 경흉추 시상T2강조영상에서 관찰되었다. 요추 MRI 촬영시, 환자의 자세변화 없이 2분 이내에 경흉추 시상T2강조영상을 추가적으로 얻었다. 13명의 환자만이 경추 또는 흉추의 병변에 대해 MR영상 또는 CT를 시행하였고, 7명의 환자는 T2강조영상 고신호강도 여부에 상관 없이 척추관협착증 또는 추간판탈출증에 대해 수술적 치료를 받았다. 결론: 요추 MRI촬영 시, 2분 이내로 소요되는 경흉추 시상T2강조영상의 추가촬영은 요추의 증상으로 오인된 경흉추의 병변을 평가하는데 유용하다.

Keywords

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