软组织血管瘤的MRI诊断(附30例分析)

目的探讨软组织血管瘤的MR I表现。方法回顾性分析30例经手术病理、血管造影及临床证实的软组织血管瘤。全部病例先行MR I平扫,其中24例平扫后加增强扫描。结果海绵状血管瘤24例,毛细血管瘤4例,蔓状血管瘤2例。26例病变示蜂窝状或海绵状结构,24例在T1W I上呈中等信号(比肌肉信号高而比脂肪信号低),30例在T2W I呈明显高信号(比脂肪信号高),增强扫描后血管成分显著强化,可呈扭曲血管状,而非血管成分不强化。结论MR I对于本病的定位、定性诊断和病变范围估计及术后疗效的评估均有重要的意义。

MRI Diagnosis of Soft Tissue Hemangioma: An Analysis of 30 Cases

Objective To evaluate MRI characteristics of soft tissue hemangioma.Methods 30 cases of soft tissue hemangiomaconfirmed by surgery,angiography and clinical diagnosis included in this study.All cases underwent plain MRI scans,24 cases of them were further-examined by contrast-enhanced MR scans.Results 24 cases were cavernous hemangioma,4 cases were capillary hemangioma and 2 were tufted hemangioma.The tumors showed moderate signal on T_1WI in 24 cases,and significantly higher signal on T_2WI in all cases(even stronger than that of fats).The vascular component within the tumor displayed remarkable enhancement and appeared as serpentinevessels,while the non-vascular tissues showed no enhancement after intravenous administration of contrast agent.Conclusion MRIexamination is of great importance in determining the position,the nature and the extent of hemangioma as well as the effectiveness ofoperation.