全数字化X线摄影、超声及MRI对乳腺癌病灶大小的评估价值  

The Value of Full field Digital Mammography,Ultrasonography and MRI in the Assessment of Breast Cancer Size

作　　者：荣小翠[1] 赵俊京[1] 解钊[1] 杨丽[2] 

机构地区：[1]河北医科大学第四医院放射科,石家庄050011 [2]河北医科大学第四医院CT室,石家庄050011

出　　处：《临床放射学杂志》2011年第4期496-500,共5页Journal of Clinical Radiology

摘　　要：目的探讨X线摄影、超声及MRI对于乳腺癌病灶大小的评估价值,并进一步分析其低估或高估的原因。资料与方法分别于X线摄影、超声及MRI上测量46例(46个)乳腺癌病灶的最大径,与病理学所测肿瘤大小对照并进行统计学分析。结果 46个病灶病理学测量的最大径为(2.38±1.44)cm,X线摄影、超声及MRI测量病灶的最大径分别为(3.09±2.12)cm、(2.25±1.09)cm、(2.60±1.31)cm。X线摄影、超声及MRI所测病灶的最大径与病理学大小的相关系数r分别为0.51(P=0.000)、0.71(P=0.000)、0.84(P=0.000)。上述3种检查方法所测46个病灶大小的差异存在统计学意义(χ2=10.831,P=0.004)。X线摄影评估不同类型病变大小之间差异有显著统计学意义(χ2=15.903,P=0.001)。结论 MRI对乳腺癌病灶大小的评估最准确,超声次之,X线评估准确性最差。对于X线摄影,根据病变类型不同,其评估准确性有所不同。但各种检查方法均存在低估或高估的情况。Objective To evaluate the value of mammography,ultrasonography and MRI to predict the tumor size preoperatively,and discuss their possible causes of over and underestimation.Materials and Methods 46 patients of breast cancer which were all performed with mammography,ultrasonography and MRI were enrolled to measure tumor size,the results were compared to pathological results.Results The mean pathological tumor size of the 46 malignant breast tumors was（2.38±1.44）cm.The mean tumor size in mammography,ultrasonography and MRI were（3.09±2.12）cm,（2.25±1.09）cm,（2.60±1.31）cm respectively.The correlation r（versus pathologic size）for mammography,ultrasonography and MRI were 0.51,0.71 and 0.84 respectively.The difference of mammographically determined size in different lesions were statistically significant（χ2=15.903,P=0.001）.The difference of three methods determined size in different lesions were statistically significant（χ2=10.831,P=0.004）.Conclusion MRI is superior to mammography and ultrasonography in predicting the tumor size preoperatively,the measurements of mammography,ultrasonography and MRI all exist underestimation or overestimation for tumor size.

关 键 词：乳腺癌 X线 超声 磁共振成像 

分 类 号：R737.9[医药卫生—肿瘤]