Proceedings of the KSMRM Conference (대한자기공명의과학회:학술대회논문집)

Korean Society of Magnetic Resonance in Medicine (대한자기공명의과학회)
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Comparative Evaluation between 1.5T vs 3.0T MRI in Brain Metastasis According to its Size

  • 정우석 (영동 세브란스 병원 진단 방사선과) ;
  • 정태섭 (영동 세브란스 병원 진단 방사선과) ;
  • 허진 (영동 세브란스 병원 진단 방사선과) ;
  • 이재훈 (영동 세브란스 병원 진단 방사선과)
  • Published : 2003.10.01
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Abstract

The purpose of this study was to compare the detection rate of brain metastasis according to size of nodule between 1.5T and 3.0T MRI 대상 및 방법： We reviewed 44 patients with primary tumors and clinical symptoms suggesting brain metastasis. After administration of double dose gadolinium-DTPA, MR imaging was performed with 3D SPGR sequence by 3.0T MRI and then with T1 SE sequence by 1.5T MRI. Consequently, comparison was done in 1.5T T1 SE sequence and 3.0T 3D SPGR sequence. With use of the signal intensity (SI) measurements in the metastatic nodules and adjacent tissue, metastatic nodule-to-adjacent tissue SI ratio were calculated. In each patient, the number of metastatic lesions detected in 1.5T and 3.0T, and their size were assessed qualitatively by three blinded readers.

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