자기공명영상을 위한 새로운 조직 상응 모형 의 제작과 평가

Abstract

PURPOSE: For the production and evaluation of the tissue-equivalent phantom, MATERIALS AND METHODS : We usedagarous gel and oil as a basic component of the mixture and added Tween 80 for the stabilization of phantoms, Wedid the test for homogeneity and measured T1 and T2 relexation times of each phantom tube. RESULTS: T1 relaxationtime ranged from 642 to 2781 msec and T2 relaxation times from 42 to 157 msec. Each phantom was significantlydifferent in T1 relaxation time and T2 relaxation time (p< .0001). CONCLUSION: Tissue equivalent phantom mayprovide good information on the optimal sequence before MR imaging of patients and may be valuable if it is usedwith the patients' MR imaging.