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3.0T磁共振LAVA-FLEX序列对胰腺肿瘤的诊断价值

The diagnostic value of 3.0T magnetic resonance LAVA-FLEX sequence on pancreatic tumor
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摘要 目的:探讨LAVA-FLEX成像技术在胰腺肿瘤诊断中的应用价值。方法:收集12例经病理证实的胰腺癌患者,术前行3.0T磁共振常规序列、DWI和LAVA-FLEX序列检查,观察与分析LAVAFLEX序列与常规扫描序列在胰腺癌病变的敏感性和特异性。结果:12例胰腺癌在常规序列显示胰腺癌为长T_2信号灶8例,略长T_2信号2例,等T_2信号2例,12例在DWI均呈高信号,T_1WI呈等信号。LAVAFLEX序列图像质量高,压脂均匀,组织对比度高,扫描速度快,12例胰腺癌均呈低信号,较常规T_1WI具有明显优势。注射对比剂增强后特征性明显。结论:LAVA-FLEX序列作为新技术,在胰腺癌诊断中具有与DWI相近的特异性与敏感性,可取代常规T_1WI、压脂T_1WI和3D动态增强T_1WI序列。 Objective: To investigate the diagnostic value of 3.0T magnetic resonance LAVA-FLEX sequence in detecting pancreatic adenocarcinoma. Methods: 12 patients with pathologically proved pancreatic adenocarcinoma were enrolled in this study, whose imaging data of LAVA-FLEX and conventional sequences and DWI preoperative with 3.0T MRI prior to surgery were analyzed in terms of the sensitivity and specificity.Results: 8 cases showed long T2 signal, 2 showed slightly long T2 signal, and 2 showed even T2 signal. All 12 casesshowed high signal in DWI, and the same signal intensity in T1WI. LAVA-FLEX showed low signal in all 12 cases,indicating an obvious advantage over the conventional T1WI. Conclusions: LAVA-FLEX as a new technology sequence, has similar specificity and sensitivity as DWI in diagnosis of pancreatic adenocarcinoma, and it can replace the conventional T1WI, Fat-saturation T1WI and 3D dynamic enhanced T1WI.
作者 龚河军 吕剑 Gong Hejun;Lyu Jian(Alar Hospital, Xinjiang Production and Construction Corps,The first division. Xinjing Alar 843300,China)
出处 《中华介入放射学电子杂志》 2016年第3期166-168,共3页 Chinese Journal of Interventional Radiology:electronic edition
关键词 胰腺癌 磁共振 LAVA-FLEX Pancreatic adenocarcinoma Magnetic Resonance LAVA-FLEX
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