磁敏感加权成像在骨骼肌内血管瘤诊断及鉴别诊断中的应用  

Application of SWI in Diagnosis and Differential Diagnosis of Hemangioma in Skeletal Muscle

作　　者：凌小莉[1,2] 刘杰[2] 向军益[2] 胡红杰[1] 陈勇[2] 

机构地区：[1]浙江大学医学院附属邵逸夫医院,310015 [2]杭州师范大学附属医院放射科,310015

出　　处：《临床放射学杂志》2017年第3期394-397,共4页Journal of Clinical Radiology

基　　金：杭州市卫生科技计划一般A类项目(编号:2014A17)

摘　　要：目的探讨磁敏感加权成像(SWI)在骨骼肌内血管瘤的诊断及鉴别诊断中的应用价值。方法回顾性分析病理证实的20例骨骼肌内血管瘤的常规MRI及SWI影像。观察肿瘤内部磁敏感信号强度(ITSS)形态、分级、分布及所占肿瘤体积比例,分析肌内血管瘤的SWI特征及鉴别诊断。结果本研究患者肌内血管瘤20例。ITSS形态:点片状4例,团状6例,蔓状10例;ITSS分级:血管瘤20例均为3级;ITSS分布:血管瘤20例均为弥漫性分布;ITSS所占肿瘤体积比例:1/3~2/3组6例,≥2/3组14例。结论肌内血管瘤在SWI序列中表现出独特的影像特征,SWI的应用有助于肌内血管瘤与其他软组织内肿瘤的鉴别诊断。Objective To evaluate the value of susceptibility weighted imaging in the diagnosis of intramuscular hemangioma.Methods conventional MRI sequences and SWI studies of 20 cases of pathologically confirmed intramuscular hemangioma of skeletal muscle were retrospectively analysed.To observe the intratumoral susceptibility signal intensity（ITSS）form,classification,distribution and volume ratio occupied by the tumors,and to analyse the SWI features and differential diagnosis of intramuscular hemangioma.Results This group of patients with intramuscular hemangioma were 20cases in total.ITSS form：4 cases were point of sheet,6 cases were conglomerate and 10 cases were racemose.ITSS classification：20 cases were level 3.ITSS distribution：20 cases were all of a diffuse distribution.ITSS occupied tumors of volume ratio：1/3 to 2/3 of 6 cases,2/3 or more group of 14 cases.Conclusion SWI in intramuscular hemangioma shows unique image characteristics,which is helpful for the differential diagnosis of intramuscular hemangioma and other tumors of soft tissue.

关 键 词：磁敏感加权成像 血管瘤 软组织 肿瘤 鉴别诊断 

分 类 号：R445.2[医药卫生—影像医学与核医学] R738[医药卫生—诊断学]