胰腺无功能神经内分泌肿瘤的多层螺旋CT增强特征

发布时间：2018-01-19 16:22

本文关键词： 无功能胰腺神经内分泌肿瘤电子计算机断层扫描多层螺旋增强扫描　出处：《安徽医学》2017年02期 　论文类型：期刊论文

【摘要】：目的探讨胰腺无功能性神经内分泌肿瘤(NFPNET)的多层螺旋CT(MSCT)双期增强特征。方法回顾性分析2009年1月至2015年12月由上海市徐汇区大华医院及交通大学附属瑞金医院病理证实的24例NFPNET患者的影像学资料,分别测量肿瘤病灶平扫、增强动脉期及增强门脉期CT值,计算肿瘤的动脉期及门脉期的强化幅度绝对值并与胰腺实质强化幅度绝对值进行统计学比较;并对肿瘤的强化方式、是否具有周边脏器受侵或远处转移进行统计。结果增强动脉期NFPNET与胰腺实质强化绝对值分别为(59.08±34.14)、(53.82±15.35)HU,两者比较差异无统计学意义(P0.05);门脉期NFPNET与胰腺实质增强绝对值分别为(48.05±22.80)、(39.37±11.57)HU,两者差异有统计学意义(P0.05)。NFPNET强化程度超过胰腺实质,动脉期有10例,门脉期有14例;3例片絮状强化,9例环形强化,7例壁结节样强化,8例有周边侵犯或远处转移。结论胰腺动态增强扫描是诊断NFPNET的重要手段,NFPNET门脉期相比胰腺实质表现为相对富血供。
[Abstract]:Objective to investigate the multilayer spiral CTT (MSCT) of nonfunctional neuroendocrine neoplasms of the pancreas (NFPNET). Methods from January 2009 to December 2015, 24 patients with NFPNET confirmed by pathology in Dahua Hospital and Ruijin Hospital affiliated to Jiaotong University were analyzed retrospectively. Like information. The plain scan, enhanced arterial phase and enhanced portal phase CT value were measured, and the absolute enhancement amplitude of arterial phase and portal phase were calculated and compared with the absolute value of pancreatic parenchyma enhancement. The enhancement mode of tumor, whether the peripheral organs were invaded or distant metastasis were counted. Results the absolute values of enhanced arterial NFPNET and pancreatic parenchyma enhancement were 59.08 卤34.14 respectively. The difference between the two groups was not statistically significant (P 0.05). The absolute values of NFPNET and pancreatic parenchyma enhancement in portal phase were 48.05 卤22.80 and 39.37 卤11.57 Hu, respectively. The enhancement degree of NFPNET was higher than that of pancreatic parenchyma. There were 10 cases in arterial phase and 14 cases in portal phase. There were 9 cases of annular enhancement and 7 cases of wall nodular enhancement with peripheral invasion or distant metastasis. Conclusion dynamic enhanced pancreatic scanning is an important method in the diagnosis of NFPNET. Compared with pancreatic parenchyma, the portal phase of NFPNET showed relatively rich blood supply.
【作者单位】：上海市徐汇区大华医院放射科;上海市交通大学医学院附属瑞金医院放射科;
【基金】：上海市徐汇区卫计委青年人才培养计划(项目编号:徐卫局2012-49)
【分类号】：R735.9;R730.44
【正文快照】： 胰腺神经内分泌肿瘤(pancreatic neuroendocrinetumor,PNET)是胰腺少见的肿瘤之一,占胰腺肿瘤的1%~5%[1],其中无功能性神经内分泌肿瘤(no func-tion pancreatic neuroendocrine tumor,NFPNET)占胰腺神经内分泌瘤60%~80%[2-3],NFPNET实验室检查无明显的特异性,CT平扫可表现为胰

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