【摘要】 目的 探讨3D-CE-MRA技术在婴幼儿体表血管瘤的应用,评估其对临床的指导价值。方法 44例确诊为体表血管瘤的患儿行MRI平扫及动态增强扫描,注药和扫描同步进行,连续采集4个血管动态时相,重建MIP图像显示病灶多期血管。结果MRI检出体表血管瘤数量共49个,其中单发血管瘤41例,多发血管瘤3例;3D-CE-MRA显示有血管显影的瘤体32例37个,血管未显影的瘤体12例12个。结论 MRI平扫及动态增强图像可反映血管瘤的部位、数量和范围,并显示与周围组织的关系。3D-CE-MRA可直接提供瘤体的血供信息。更多还原

【Abstract】 Objective To investigate the diagnostic value and clinical significance of the three-dimensional contrast-enhanced MR angiography(3D-CE-MRA) in the infantile superficial hemangioma.Methods Forty-four children with superficial hemangioma underwent conventional and dynamic contrast-enhanced MRI.MRI scanning was started at the time of injection,and four dynamic phases of images were acquired continually.Maximum intensity projection(MIP) images were reconstructed to show the blood vessels of the lesions in multiple phases.Results Forty-nine infantile superficial hemangiomas were detected by MRI,including a single lesion in 41 patients and multiple ones in 3.3D-CE-MRA showed 37 lesions in 32 patients,and other 12 lesions were not found in 12patients.Conclusion The conventional and dynamic contrast-enhanced MRI can reflect the location,number and the range of the superficial hemangioma,and show the relationship between the lesion and the surrounding tissues.3D-CE-MRA directly shows the blood supply of the tumors.更多还原