软组织血管瘤的MR表现(附13例分析)

MRI manifestations of soft tissue hemangioma(analysis of 13 cases)

目的：提高对软组织血管瘤MR表现及诊断价值的认识。材料与方法：回顾性分析13例软组织血管瘤，所有病例均经0．5T超导型磁共振系统检查并经手术或血管造影证实。结果：大多数病变（12／13）在自旅回波T加权像上呈中等信号强度（比肌肉信号高而比脂肪低），所有病变（13／13）T2加权像上呈明显高信号（比脂肪信号高），多数病变（9／13）显示蜂窝状或海绵状结构，10例边缘不清。结论：研究结果表明，软组织血管瘤在MRI表现上有特征性，MRI能为临床术前诊断提供可靠依据，是诊断该病有价值的方法，特别是对于位置较深的软组织血管瘤有意义。

Objective:To impreve the recongnition of MR manifestations and value in diagnosing soft tissue hemangiomas.Materials and Methods:13 cases with soft tissue hemangioma wer analysed retrospectively.All patients were examed by a 0.5T superconducted MR imaging system and confirmed by surgery or angiography.Result:Most lesions(12/13)showed extremely bright signal intersity (brighter than that of fat) on T2-weighted imagin.The honeycomb or spongiform structure were identified in most lesions(9/13).The borders were indistinct in 10 cases.Conclusion:The results showed that MRI manifertations of soft tissue hemangioma have characteristic features.MRI cna provide reliable evidence for clinical preoperative diajgnosis and is a vakluable method for diagnosing this disease,especially to deeply situated hemangiomas.