CAJ | 학술논문

目的：比较三维可变反转角快速自旋回波序列(3D-SPACE)、三维真稳态进动快速成像序列(3D-Ture FISP)以及二维快速自旋回波质子像序列(2D-FSE-PD)膝关节软骨的成像质量。方法40例健康志愿者和20例患者在1.5T MR 上行3D-SPACE、3D-True FISP 和2D-FSE-PD 序列成像。比较各序列软骨信噪比(SNR)、对比信噪比(CNR)、损伤显示能力。结果3种序列中,3D-SPACE 序列的软骨信噪比、滑液与软骨的对比信噪比最高。3D-SPACE 比3D-True FISP 能更好地显示膝关节软骨的Ⅰ、Ⅱ级损伤,在软骨的Ⅲ、Ⅳ级损伤中,3D-SPACE 与3D-True FISP 无明显差异,对于各级软骨损伤,3D 序列均好于2D 序列。结论相比3D-True FISP、2D-FSE-PD 序列,3D-SPACE 序列能更好地显示膝关节软骨结构和损伤。
목적：비교삼유가변반전각쾌속자선회파서렬(3D-SPACE)、삼유진은태진동쾌속성상서렬(3D-Ture FISP)이급이유쾌속자선회파질자상서렬(2D-FSE-PD)슬관절연골적성상질량。방법40례건강지원자화20례환자재1.5T MR 상행3D-SPACE、3D-True FISP 화2D-FSE-PD 서렬성상。비교각서렬연골신조비(SNR)、대비신조비(CNR)、손상현시능력。결과3충서렬중,3D-SPACE 서렬적연골신조비、활액여연골적대비신조비최고。3D-SPACE 비3D-True FISP 능경호지현시슬관절연골적Ⅰ、Ⅱ급손상,재연골적Ⅲ、Ⅳ급손상중,3D-SPACE 여3D-True FISP 무명현차이,대우각급연골손상,3D 서렬균호우2D 서렬。결론상비3D-True FISP、2D-FSE-PD 서렬,3D-SPACE 서렬능경호지현시슬관절연골결구화손상。
Objective To compare the imaging quality of articular cartilage of the knee with 3D-sampling perfection with applica-tion optimized contrast using different flip angle evolutions (3D-SPACE),3D-true fast imaging with steady-state precession (3D-True FISP)and 2D-fast-spin-echo-proto-density(2D-FSE-PD)sequences.Methods 40 healthy volunteers and 20 patients of knee joints were examined with 3D-SPACE,3D-True FISP and 2D-FSE-PD sequences at 1.5T MRI.Signal-noise ratio (SNR),contrast-to-noise ratio (CNR)and lesion visualization of articular cartilage were compared.Results 3D-SPACE showed the highest SNR of cartilage and CNR of fluid/cartilage among the three sequences (P <0.05).3D-SPACE had the better capability for showing the lev-el I 、level Ⅱcartilage injury comparing with 3D-True FISP,but no significant difference between the cartilage injury at level Ⅲ and level Ⅳ.For all levels of cartilage injury,3D sequence was better than the 2D sequence.Conclusion Compared with the 3D-True FISP sequence and 2D-FSE-PD sequence,3D-SPACE sequence can show the structure of knee and knee cartilage injury better.