| 胰腺神经内分泌瘤的MRI特点 |
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| 引用本文： | 徐志明,曾蒙苏.胰腺神经内分泌瘤的MRI特点[J].军医进修学院学报,2009,30(4):490-492. |
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| 作者姓名： | 徐志明 曾蒙苏 |
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| 作者单位： | 1. 解放军苏州100医院放射科,苏州,215007
2. 上海复旦大学附属中山医院放射科,上海,200032 |
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| 摘 要： | 目的分析胰腺神经内分泌瘤的MR影像特点，并对MRI在胰腺神经内分泌瘤诊断中的价值进行评估。方法对18名经病理证实的胰腺神经内分泌瘤患者的MR扫描进行回顾性分析。扫描系列包括SE T1WI、脂肪抑制T1WI、FSE T2WI、快速多层面干扰梯度回波（FMPSPGR）Gd—DTPA造影剂增强前和增强后。结果多数在T1WI（66．7％，12／18）、脂肪抑制T1WI（78．6％，11／14）和未增强的FMPSPGR（84．2％，16／19）影像上为低信号，在T2WI上为高信号（66．7％，12／18）。脂肪抑制T1WI和FMPSPGR影像上的病变轮廓比常规T1WI和T2WI的更清晰。在动态造影剂增强扫描中，10例肿瘤在动脉期、门静脉期和延迟期呈中到强的均匀性增强，肿瘤信号强度仍然高于正常胰腺实质；3例肿瘤呈周边结节性增强和逐渐的向心性增强；2例肿瘤呈轻度到中度均匀性增强；2例肿瘤呈延迟增强；2例肿瘤呈囊性改变伴环状增强；1例局限于胰体内的病变伴有肝转移。结论多序列和动态造影剂增强MRI对胰腺神经内分泌瘤的诊断具有重要价值。
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| 关 键 词： | 胰腺 神经内分泌瘤 磁共振成像 诊断 |
MRI features of pancreatic neuroendocrine tumours |
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| XU Zhi-ming,ZENG Meng-su.MRI features of pancreatic neuroendocrine tumours[J].Academic Journal of Pla Postgraduate Medical School,2009,30(4):490-492. |
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| Authors: | XU Zhi-ming ZENG Meng-su |
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| Institution: | XU Zhi-ming1,ZENG Meng-su2 1 Department of Radiology,Chinese PLA 100 Hospital,Suzhou 215007,China,2Department of Radiology,Zhongshan Hospital,Fudan University,Shanghai 200032 |
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| Abstract: | Objective To analyze the MR imaging features and to assess the role of MRI in the diagnosis of pancreatic neuroendocrine tumors.Methods MR imaging features of 18 patients with pathologically-confirmed pancreatic neuroendocrine tumors were retrospectively analyzed.MR scanning included SE T1WI,fat-suppressed T1WI,FSE T2WI,and fast multiplanar spoiled gradient recalled(FMPSPGR) wave before and after the contrast medium,Gd-DTPA,was used.Results Most lesions were detected at T1WI(66.7%,12/18) and fat-suppressed ... |
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| Keywords: | pancreas neuroendocrine tumors magnetic resonance imaging diagnosis |
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