A study of calculate a time to peak enhancement of contrast level by using blood flow

혈류에 의한 조영제 peak time의 산출에 관한 연구

  • 최관우 (서울아산병원 영상의학과) ;
  • 손순룡 (서울아산병원 영상의학과) ;
  • 이호범 (서울아산병원 영상의학과)
  • Received : 2013.02.12
  • Accepted : 2013.05.09
  • Published : 2013.05.31


This study attempt to develope and suggest a new, minimize side effects process for calculate a time to peak enhancement of contrast level by using blood flow instead of current mathematical process. We conducted a studies 127 patients who performed the CE MRA by using test-contrast inject way. We used measurements of a contrast inflow time and time to peak enhancement of contrast level of each cerebrovascular branch for similarity of witch cerebrovascular branch calculate a time to peak enhancement of contrast level by using blood flow in image compared with calculation a time to peak enhancement of contrast level by using current mathematical process after contrast enhancement. In this study, confidence interval were used if the variable is continuous variable; there is differences between 4 groups exist but in group 1, there is no difference with time in peak enhancement of contrast level by using mathematical method to inflow time in sinus sigmoideus. it was significant statistically, in addition there was significant low heterogeneity in Bland Altman plot. Thus, apply a new calculate a time to peak enhancement of contrast level by using blood flow method will minimize damage caused by side effect, maintain quality of image, easy and fast access. It should provide a space for the exchange of current calculate a time to peak enhancement of contrast level by using mathematical process.


Blood flow;CE MRA;Contrast medium peak time;NSF;Test bolus method


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