摘要
目的确定检测肝血管瘤最有效的DWI技术(b=100,b=600,b=1 000s/mm2)。方法对32例肝血管瘤患者行三个不同b值的DWI检查(b=100,600,1 000s/mm2),对比不同b值下每个病灶和正常肝实质的ADC值,用SPSS软件对数据作方差分析。结果肝血管瘤和正常肝组织在高b值测得的ADC值较低,方差分析显示b=1 000s/mm2图像的肝血管瘤ADC值高于正常肝组织。结论除b=1 000s/mm2外,肝血管瘤的平均ADC值低于正常肝组织,高b值有助于区分肝血管瘤和正常肝组织。
Objective To determine which diffusion-weighted imaging technique （b-100, b-600, b-1 000 s/mm2） was most useful in depicting liver hemangiomas. Methods Diffusion-weighed imaging was performed using three different b values of 100, 600, and 1 000 s/ram2 for 32 patients. ADC values were measured for each lesions and compared with normal liver parenchymal ADC values on different b values. Data were analyzed using SPSS software by analysis of variances. Results Lower ADC values were obtained for higher b values in normal liver tissue and hemangiomas. Variance analysis revealed hemangiomas had higher ADC values than normal liver tissue on b-1 000 images. Conclusion Mean values for ADC of hemangiomas were lower than ADC of the normal liver except for b-1 000 value. Higher b values are useful for the differentiation between normal liver tissue and hemangiomas.
出处
《医学影像学杂志》
2012年第6期935-937,共3页
Journal of Medical Imaging
关键词
磁共振
扩散加权成像
肝
血管瘤
Magnetic resonance
Diffusion weighted imaging
Liver
Hemangioma
