방사형 K-공간 획득 기술을 활용한 움직임 인공물 개선 연구 = A Study on Motion Artifact Improvement Using Radial K-Space Acquisition Technology

국문 초록 (Abstract)

본 연구는 방사형 K-공간 획득 기법 중 하나인 JET 기법을 적용하여 어깨관절 자기공명영상 검사에서의 움직임 인공물과 노이즈를 감소 효과를 평가하였다. 2023년 2월 1일부터 3월 31일까지 어깨관절 자기공명영상 검사를 받은 35명을 대상으로 선정하여 후향적으로 분석하였다. 평가는 JET 기법 적용 여부에 따라 신호 대 노이즈 비, 평균 대 표준편차 비, 움직임 인공물 발생 여부에 대한 영상 평가를 수행하였다. JET 기법을 적용한 그룹에서는 신호 대 노이즈 비, 평균 대 표준편차 비, 움직임 인공물 발생 여부에 대한 영상 평가 값이 통계적으로 유의하게 높게 나타났다(p<0.05). 본 연구를 통해 어깨관절 자기공명영상 검사 시 JET 기법의 도입은 움직임 인공물의 감소뿐만 아니라 신호 대 노이즈 비와 평균 대 표준편차 비가 향상된 영상을 얻을 수 있음을 확인하였다. 이러한 결과는 JET 기법이 어깨관절 영상 취득에 유용하게 활용될 수 있을 것으로 판단되며, 더 나아가 다양한 부위에 적용되는데 있어 서도 기여할 수 있을것으로 예상된다.

다국어 초록 (Multilingual Abstract)

This study evaluated the effects of reducing motion artifacts and noise in shoulder joint magnetic resonance imaging examinations by applying the JET technique, a radial k-space acquisition method. Thirty five patients who underwent magnetic resonance imaging of the shoulder joint between February 1 and March 31, 2023 were selected and retrospectively analyzed. The assessment included image evaluations based on the application of the JET technique, examining signal-to-noise ratio, mean-to-standard deviation ratio, and the occurrence of motion artifacts. In the group in which the JET technique was applied, all image evaluation parameters showed statistically significant improvements (p<0.05). Through this study, the introduction of the JET technique in shoulder joint magnetic resonance imaging examinations was found not only to reduce motion artifacts, but also to enhance image quality in terms of signal-to-noise ratio and mean-to-standard deviation ratio. These results suggest that the JET technique can be beneficial in terms of acquiring shoulder joint images and may contribute to broader applications in various anatomical regions.

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