北京生物医学工程

2D-SSh-MRCP序列与基于压缩感知技术的CS-3D-MRCP序列在胰胆管成像中的对比研究

Comparison of 2D-SSh-MRCP and compressed sensing sensitivity encoding based CS-3D-MRCP in cholangiopancreatography

作者：丁金立王志平卓芝政段云云郑凤莲徐成张彦博范亦龙

单位：首都医科大学附属北京天坛医院放射科（北京 100070）

关键词：磁共振胰胆管水成像；压缩感知技术；胰胆管疾病; 胆石症

分类号： R318.6

出版年·卷·期（页码）：2020·39·3（290-295）

摘要：

目的比较屏气条件下采集的单次激发快速自旋回波2D-SSh-MRCP序列与基于压缩感知技术的呼吸触发3D快速自旋回波容积扫描CS-3D-MRCP序列在胰胆管成像中的应用价值，以期指导临床实际扫描。方法分析首都医科大学附属北京天坛医院50例同时行2D-SSh-MRCP序列和CS-3D-MRCP序列扫描的患者的临床和影像资料，由2名经验丰富的诊断医师对肝内外胆道成像、胰管成像、胆囊形态以及结石的诊出率进行分析和评分，利用SPSS软件检验诊断医师之间的一致性，利用t检验分析上述指标的组间差异。

结果两名诊断医师的评分一致性较强（Kappa>0.8）；2D-SSh-MRCP序列与CS-3D-MRCP序列在肝内外胆管系统的显示评分方面无统计学差异（P>0.05）；CS-3D-MRCP序列在胆囊形态和胰管显示评分方面显著高于2D-SSh-MRCP 序列（P<0.05）；2D-SSh-MRCP序列对胆囊内结石和胆管内结石检出率（90.9%，95.0%）高于CS-3D-MRCP序列（77.3%，85.0%）。结论 2D-SSh-MRCP序列对胆囊内结石和胆管内结石检出率较高；CS_3D_MRCP序列在胆囊结构及胰管显示方面较好；建议在CS-3D-MRCP序列之后加扫2D-SSh-MRCP序列，二者配合更利于胰胆管结构的检查。

Objective To compare the clinical values of 2D-SSh-MRCP and compressed sensing sensitivity encoding (CS-SENSE) based CS-3D-MRCP in cholangiopancreatography (MRCP), and to guide the MRCP scanning in practice. Methods The clinical data of 50 patients who underwent 2D-SSh-MRCP (group 2D) and CS-3D-MRCP (group 3D) in my hospital were analyzed. Subjective evaluations of the images including the imaging of bile duct, pancreatic tube and gall bladder, as well as the diagnostic rate of cholelithiasis were carried out by two experienced radiologists. SPSS were used for consistency analysis between the two raters and t test were used for statistical analysis between the two groups.Results No significant difference was found in the scorings of intrahepatic and extrahepatic bile ducts between 2D-SSh-MRCP and CS-3D-MRCP (P>0.05). The gallbladder and pancreatic duct were better showed by using CS-3D-MRCP than 2D-SSh-MRCP (P<0.05). The diagnostic rates of calculus in gallbladder and calculus in bile ducts by using CS-3D-MRCP (90.9% and 95.0%) were higher than those of 2D-SSh-MRCP (77.3% and 85.0%).Conclusions 2D-SSh-MRCP is superior in diagnostic accuracy of cholelithiasis; CS-3D-MRCP has a better display on gallbladder and pancreatic duct; 2D-SSh-MRCP is suggested to be carried out after CS-3D-MRCP , which may be better for diagnosing biliopancreatic diseases.

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