软组织脉管畸形的MRI诊断

目的 探讨MRI对软组织脉管畸形的诊断价值.资料与方法 回顾性分析575例脉管畸形患者的MRI表现.结果 490例血管畸形,T1WI等信号88例,混杂信号402例;T2WI不均匀高信号475例,较均匀高信号15例,圆形血管样高信号210例,在病变的边缘可见尖角样改变216例.43例淋巴管畸形,T1WI等信号2例,混杂信号36例;T2WI不均匀高信号38例,5例T1WI、T2WI表现为脂肪增厚,另见囊状灶26例.42例血管、淋巴管混合畸形,T1WI等信号2例,混杂信号40例;T2WI不均匀高信号42例.结论 MRI能反映脉管畸形的特征,对其诊断与鉴别诊断有重要价值.

MRI Diagnosis of Soft Tissue Vascular Malformations

Objective To explore the value of MRI in the diagnosis of soft tissue vascular malformations, Materials and Methods The MRI findings of 575 cases with soft tissue vascular malformations were reviewed retrospectively, Results In 490 cases with soft tissue vessel malformations, 88 cases showed signal isointensity and 402 cases with heterogeneous signal intensity on T1-weighted images; 475 cases showed inhomogenous signal hyperintensity and 15 cases with homogenous signal hyperintensity on T2-weighted images; 210 cases showed circular signal hyperintensity on T2 weighted images, 216 cases showed tip-angle change in the margin of lesions. In 43 cases with soft tissue lymphatic malformations, 2 cases showed signal isointensity and 36 cases with heterogeneous signal intensity on T1-weighted images; 38 cases with inhomogenous signal intensity, 5 cases showed fat thickening on T1-weighted and T2-weighted images, 26 cases showed cyst change. In 42 cases of combined malformations with soft tissue vessel and lymphatic malformations, 2 cases showed signal isointensity and 40 cases with heterogeneous signal intensity on T1-weighted images; 42 cases showed inhomogenous signal hyperintensity. Conclusion Soft tissue vascular malformations have some characteristic MRI features, MR/plays an important role in the diagnosis and differential diagnosis of soft tissue vascular malformations.