鞍旁海绵状血管瘤磁共振DWI的诊断价值研究  

The value for the diagnosis of parasellar cavernous hemangioma with magnetic resonance diffusion weighted imaging

作　　者：王鹤翔[1] 展金锋[1] 李晓莉[1] 徐琦[1] 聂佩[1] 刘浩[2] 徐文坚[1] 

机构地区：[1]青岛大学附属医院放射科,山东青岛266003 [2]山东省淄博市中心医院CT室,山东淄博255036

出　　处：《医学影像学杂志》2017年第12期2257-2259,共3页Journal of Medical Imaging

摘　　要：目的探讨鞍旁海绵状血管瘤的DWI特征及其病理学基础。方法回顾性分析17例经病理证实的鞍旁海绵状血管瘤DWI表现及其病理特征,测量肿瘤及对侧正常脑实质ADC值,并进行对比分析。结果 DWI显示病变15例呈等信号,2例呈稍低信号;17例肿瘤平均ADC值(1.61×10^(-3)mm^2/s)大于对侧正常脑实质(0.90×10^(-3)mm^2/s)(t=11.01,P<0.001)。病理切片肿瘤由大量扩张的血管构成。结论鞍旁海绵状血管瘤MRI表现与肿瘤富有血管成分有关,病灶ADC值较健侧增高,DWI呈等、低信号,有助于对此肿瘤的诊断和鉴别诊断。Objective To explore the DWI characteristics and the pathological basis of parasellar cavernous hemangioma.Methods The DWI and pathological manifestations of 17 cases with parasellar cavernous hemangiom confirmed by surgery and pathology were analyzed retrospectively. The apparent diffusion coefficient（ ADC） value of the tumors and contralateral normal brain parenchyma were measured and compared with each other. Results DWI showed isointensity（ n = 15） or a little hypointensity（ n = 2）. The average ADC value of the 17 tumors（ 1. 61 × 10^-3 mm^2/s） was significently higher than that of the contralateral normal parenchyma（ 0. 90 × 10^-3 mm^2/s）（ t = 11. 01,P〈0. 001）. A large number of expansive vessel components were seen on pathological section in all cases. Conclusion The MRI features of parasellar cavernous hemangiom are closely correlated with rich blood vessels. The ADC value of the tumor is higher than that of the contralateral parenchyma,and DWI shows isointensity or a little hypointensity,which is helpful for the diagnosis and differential diagnosis.

关 键 词：鞍区 海绵状血管瘤 磁共振成像 病理学 

分 类 号：R730.269[医药卫生—肿瘤] R445.2[医药卫生—临床医学]