복부 MRI검사에서 m-DIXON기법의 유용성 평가: e-THRIVE기법과 비교 분석

Evaluation of Usefulness of an m-DIXON Technique during an Abdomen MRI Examination : A Comparison with an e-THRIVE Technique

이 연구의 목적은 복부 MRI검사에 유용한 m-DIXON기법이 기존 e-THRIVE기법에 비해 임상적으로 유용한 검사인지 알아보기 위해 2013년 9월부터 2014년 2월까지 간 질환을 주소로 복부 MRI검사를 시행한 84명을 대상으로 분석하였다. 연구결과에서 SNR은 m-DIXON기법 $90.42{\pm}16.90$, e-THRIVE $60.42{\pm}11.54$로 나타났으며, CNR은 m-DIXON기법 $52.38{\pm}22.58$, e-THRIVE기법 $46.31{\pm}20.25$로 나타났다. 정성적 평가는 m-DIXON기법에서 영상의 질 $4.06{\pm}0.34$, 인공물 $3.64{\pm}0.22$, 지방소거 $4.16{\pm}0.15$로 나타났으며, e-THRIVE기법에서 영상의 질 $3.14{\pm}0.35$, 인공물 $3.06{\pm}0.38$, 지방소거 $3.14{\pm}0.30$으로 나타났다. 결론적으로 복부 MRI검사에서 m-DIXON기법은 e-THRIVE 기법에 비해 정량적 평가 및 정성적 평가에서 우수한 것으로 나타나, 향후 복부질환의 진단에 유용하게 활용할 것을 제안한다.

This research is conducted to identify whether an m-DIXON technique which is useful for an abdomen MRI examination compared with an existing e-THRIVE technique is a clinically useful or not. There was evaluated quantitative and qualitative to 84 subjects who had abdomen MRI exam due to their liver disease were conducted during a period from September in 2013 to February in 2014. First of all the quantitative evaluation, the m-DIXON technique's SNR was $90.42{\pm}16.90$ and the e-THRIVE technique was $60.42{\pm}11.54$ and the m-DIXON technique's CNR was $52.38{\pm}22.58$ and the e-THRIVE technique was $46.31{\pm}20.25$. Secondly in the qualitative evaluation, the m-DIXON technique's image quality was $4.06{\pm}0.34$, a artifact was $3.64{\pm}0.22$, and fat suppression was $4.16{\pm}0.15$, the e-THRIVE technique's image quality was $3.14{\pm}0.35$, a artifact was $3.06{\pm}0.38$, fat suppression was $3.14{\pm}0.30$. In conclusion, m-DIXON technique for abdomen MRI examination showed superiority over both SNR as a quantitative anaylsis, CNR and a qualitative analysis.