软组织血管瘤的影像学诊断

目的:探讨各种影像学检查方法(X线平片,血管造影,CT和MRI)在诊断软组织血管瘤的作用。材料和方法:回顾性分析38例血管瘤患者的影像资料,全部患者进行了X线、CT检查,25例做了血管造影检查,35例做了MRA检查。结果:除组织深部的血管瘤均表现软组织肿胀,密度不均。X线平片出现静脉石,对软组织血管瘤的诊断具有重要意义,但在本组病例中静脉石的出现率只占40%;血管造影可显示供养血管的来源及血管团,并与动-静脉畸形鉴别;且能明确病变的大小和范围。CT和MRI对肿瘤的性质帮助很大,并能精确地确定病变的部位、大小及邻近组织的关系,为手术提供依据。但是,CT由于是轴位扫描,所以肿瘤范围难以确定。结论:CT和MRI对本病的诊断明显优于普通X线平片。CT扫描肿瘤边界难以确定,增强扫描有风险。MRI检查具有安全、无创的优点,故本病应首选X线相辅助的检查方法,MRI检查必不可少,准备手术的患者可选择血管造影。

Imaging diagnosis of soft-tissue hemangioma

Objective:To evaluate the value of various imaging modalities in the diagnosis of soft-tissue hemangioma.Ma -terials and Methods:The imaging characteristic signs of 38cases of soft-tissue hemangioma were reviewed retrospectively.Imaging exams included plain X-ray and CT in all patients,angiography in25cases,MRA in35cases.Results:Plain film is important to show calcified phleboliths(40%in our data)and rule out other diseases.Angiography can show their source of vas-cular supply and the vascularity,and distinguish cavernous hemangioma from arteriovenous malformations.Both plain X-ray and angiography cannot provide the true extent of the lesion.CT and MRI can show the true extent and location of the lesion,and show the relationship of lesions to adjacent structures accurately,and all these are very important for surgical planning.Con clusion:CT and MRI has been shown to be superior over plain film and angiography in the diagnosis of hemangioma.Thus,the diagnosis of soft-tissue hemangioma should start with plain film,then MRI.