Vertebral hemangiomas: MR imaging.
Vertebral hemangiomas: MR imaging.
复制标题
椎体血管瘤：磁共振成像。
DOI：
10.1148/radiology.165.1.3628764
复制
发表时间：
1987
期刊：
影响因子：
19.7
通讯作者：
Dengel,FH
中科院分区：
文献类型：
--
作者：
Ross,JS;Masaryk,TJ;Modic,MT;Carter,JR;Mapstone,T;Dengel,FH
与大多数骨病变不同，脊椎血管瘤在T1和T2加权磁共振（MR）图像上显示信号增加。为了确定这些信号特征的基础，回顾性分析了10例椎体血管瘤（8例）的MR成像结果，这些结果与平片、计算机断层扫描（CT）和组织病理学研究的结果相关。MR图像显示肿瘤骨质部分在T1和T2加权像上呈斑点状增加的信号。在3名患者中，骨外成分在T1加权图像上未显示出增加的信号。化学位移图像和组织学研究表明，脂肪组织引起的T1加权像上的信号增加。肿瘤的骨外成分几乎不含脂肪组织，这解释了T1加权图像上缺乏高信号的原因。这些信号变化似乎为脊椎血管瘤的MRI诊断提供了一个特定的表现。
Vertebral hemangiomas, unlike most bone lesions, show increased signal on T1- and T2-weighted magnetic resonance (MR) images. To define the basis for these signal characteristics, a retrospective review was done of the MR imaging findings in ten vertebral hemangiomas (eight patients), and these were correlated with the findings from plain radiographic, computed tomographic (CT), and histopathologic studies. MR images showed mottled increased signal in T1- and T2-weighted images from the osseous portions of the tumors. In three patients, the extraosseous components failed to show increased signal on T1-weighted images. Chemical shift images and histologic studies demonstrated that adipose tissue caused the increased signal on T1-weighted images. The extraosseous components of the tumor contained little, if any, adipose tissue, which explained the lack of high-intensity signal on T1-weighted images. These signal changes appear to make a specific constellation of findings for the diagnosis of vertebral hemangioma with MR imaging.