Proceedings of the KSMRM Conference (대한자기공명의과학회:학술대회논문집)

Korean Society of Magnetic Resonance in Medicine (대한자기공명의과학회)
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Contrast-Enhanced Magnetic Resonance Imaging at True End-Diastole to Quantify Reproducible Transmural Extent of Myocardial Hyperenhancement

  • 최병욱 (연세대학교 의과대학 진단방사선과, 방사선의과학연구소) ;
  • 최규옥 (연세대학교 의과대학 진단방사선과, 방사선의과학연구소) ;
  • 김영진 (연세대학교 의과대학 진단방사선과, 방사선의과학연구소) ;
  • 정남식 (연세대학교 의과대학 심장내과) ;
  • 임세중 (연세대학교 의과대학 심장내과)
  • Published : 2003.10.01
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Abstract

To determine feasibility of contrast-enhanced MRI (co-MRI) at true end-diastole (ED) free from limitation of time for inversion-recovery and trigger window for quantifying transmural extent of infarction. 대상 및 방법： MRI was peformed in 18 patients with myocardial infarction. Cine imaging and co-MRI with same registered slices in short axis were performed. To allow true ED co-MRI, ECG synchronization should use two RR-intervals for one acquisition of a segment of k-space by setting the heart rate to half that of the true heart rate. Trigger delay time was adjusted to the RR-interval for imaging at ED and to the sum of RR-interval plus the time between R-wave and the end-systole (ES) determined in cine images for imaging at ES.

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