摘要
目的比较三维可变翻转角的快速自旋回波(3D-SPACE)与三维传统快速自旋回波(3D-TSE)及二维快速自旋回波(2D-TSE)序列磁共振胰胆管显影(MRCP)用于显示胆囊及胆总管结石的图像质量。方法采用呼吸导航的3D-SPACE序列和传统3D-TSE序列及屏气采集的2D-TSE对10名健康志愿者(对照组)和22例胆道结石患者(患者组)行MRCP,比较3种成像方法的图像采集时间、胆总管CNR、胰胆管影像质量、及对结石的显示情况。结果在患者组及对照组中,3D-SPACE胆总管CNR均明显高于传统2D-TSE、3D-TSE序列(P均<0.05);3D-SPACE序列图像质量评分、运动伪影、胆总管、左右肝内胆管、主胰管评分均明显高于2D-TSE、3D-TSE序列(P均<0.05);3D-SPACE序列影像采集时间均较传统3D-TSE序列减少,患者组减少(20.90±0.21)%,对照组减少(23.09±0.12)%。2D-TSE序列用时最短,SPACE序列原始像对胆囊及胆总管结石显示最优。结论相比于2D-TSE-MRCP、3D-TSE-MRCP序列,3D-SPACEMRCP影像质量更好,其原始影像更适用于显示胆囊和胆管结石,但图像采集时间长于2D-TSE。
Objective To evaluate the image quality of magnetic resonance cholangiopancreatography,（MRCP）displaying the gallstone and common bile duct stones（CDS）using three-dimensional sampling perfection with application optimized contrasts（3D-SPACE）,three-dimensional turbo-spin-echo（3D-TSE）,two-dimensional turbo-spin-echo（2D-TSE）sequences.Methods The navigator-triggered 3D-SPACE sequence,navigator-triggered 3D-TSE sequence and breath-hold2D-TSE sequence were applied to 10volunteer（control group）and 22 patients with gallstone and（or）CDS（patient group）,and then the CNR of common bile duct,image quality,scanning time and the ability of displaying the stones were compared.Results In patient group and control group,the CNR of common bile duct on 3D-SPACE-MRCP were significantly higher than those of 3D-TSE and 2D-TSE sequences（all P〈0.05）.The scores of image quality,motion artifacts,common bile duct,the left hepatic,right hepatic and the main pancreatic duct on 3D-SPACE-MRCP were better than those on 3D-TSE-MRCP and 2D-TSE-MRCP（all P〈0.05）.Comparing with 3D-TSE-MRCP,image acquisition time of 3DSPACE-MRCP was shorted（20.90±0.21）%in patient group and（23.09±0.12）% in control group.The 2D-TSE sequence consume the minimum time.Primitive images of 3D-SPACE sequence do the best in displaying the gallstone and CDS.Conclusion Although consuming more time then 2D-TSE sequence,but compared with 3D-TSE-MRCP and 2DTSE-MRCP,3D-SPACE-MRCP can provide higher quality imaging,and primitive images is more suitable for clinical application on the gallstone and CDS.
出处
《中国医学影像技术》
CSCD
北大核心
2015年第10期1582-1586,共5页
Chinese Journal of Medical Imaging Technology
关键词
胰胆管造影术
磁共振
可变翻转角的快速自旋回波
自旋回波
Cholangiopancreatography
magnetic resonance
Sampling perfection with application optimized contrasts
Turbo-spin-echo
