Journal of the Korea Academia-Industrial cooperation Society (한국산학기술학회논문지)

The Korea Academia-Industrial cooperation Society (한국산학기술학회)
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Quantitative Evaluation of Optimized Fat-Suppression Techniques for T2 Weighted Abdominal MR Imaging : Comparison of TSE-SPIR and GE-PROSET

T2 강조 복부자기공명영상에 대한 최적의 지방소거 기법의 정량적 평가 : TSE-SPIR 와 GE-PROSET 비교

  • Goo, Eun-Hoe (Department of Radiological Science, Cheongju University)
  • 구은회 (청주대학교 방사선학과)
  • Received : 2013.07.16
  • Accepted : 2013.10.10
  • Published : 2013.10.31
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Abstract

The purpose of this experiment is to evaluate of optimized FS techniques for T2 weighted abdominal MRI compared of TSE-SPIR fat suppression and GE-PROSET fat suppression. All MR examinations were performed on a 1.5 T(Philips, Medical System, Achieva) scanner using 16 channel mult-coils. All images were performed in the axial plane using TSE-SPIR and GE-PROSET. The mean SNRs of the retroperitoneal and mesenteric fat for TSE-SPIR and GE-PROSET were 31.50, 4.15 and 32.39, 7.03. The mean CNRs of the bowel and retroperitoneal, mesenteric fat for TSE-SPIR and GE-PROSET were 52.69, 74.54 and 26.12, 68.78). The delineation of bowel wall margins with TSE-SPIR(2.4) and GE-PROSET(1.8) were significantly improved using TSE-SPIR. The delineation of pancreas wall with TSE-SPIR(1.90), GE-PROSET(2.80) were significantly improved using GE-PROSET. In conclusion, TSE-SPIR fat suppression was superior to GE-PROSET fat suppression in T2 WI FS abdominal MRI.

본 실험의 목적은 TSE-SPIR 지방소거기법과 GE-PROSET 지방소거기법을 비교하여 복부자기공명영상에서 최적의 T2 강조 지방소거기법을 평가하고자 한다. 자기공명영상 검사는 16채널 다중채널을 사용하여 1.5 T(Philips, Medical System, Achieva)기기로 수행하였다. 모든 영상은 TSE-SPIR과 GE-PROSET을 이용하여 축면상(axial plane)을 얻었다. TSE-SPIR과 GE-PROSET에 대한 후복막 지방의 평균 SNRs는 31.50, 4.15 이었으며, 장간막 지방에 대한 SNRs는 32.39, 7.03이었다. TSE-SPIR과 GE-PROSET에서 장과 후복막 지방, 장간막 지방의 CNRs는 152.69, 74.54 와 26.12, 68.78이었다. 장벽에 대한 묘출도는 TSE-SPIR(2.4), GE-PROSET(1.8)로 TSE-SPIR가 높게 나타났으며, 췌장벽(pancreas wall)에 대한 묘출도는 TSE-SPIR(1.90), GE-PROSET(2.80)로 GE-PROSET가 높게 나타났다. 결론적으로, T2 강조 지방소거 복부자기공명영상에서 GE-PROSET 지방소거기법 보다 TSE-SPIR 지방소거기법이 우위성 있은 평가를 얻었다.

Keywords

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