乳腺肿物MRI检查的临床诊断及应用研究

Magnetic Resonance Image for Diagnosis of Breast Lesions

目的 评价乳腺肿物MRI检查的临床诊断应用价值。方法 对 6 3例乳腺肿物患者行乳腺MRI平扫和增强扫描 ,并做X线、超声、红外线乳腺透照检查 ,所有患者均行手术治疗并取得病理结果。结果 MRI检查明确诊断的 6 3例患者中 ,2例为乳腺外疾病 ,3种传统的影像学检查方法均将 2例乳房部位的非乳腺疾病误诊为乳腺肿物。增强MRI检查对乳腺良、恶性肿物诊断的敏感性、特异性、确诊率分别为 91.4%、96 .2 %、94.3 %。MRI平扫对乳腺疾病的确诊率为 79.3 %。X线钼靶、超声及红外线乳腺透照对乳腺疾病的确诊率分别为 6 6 .7%、6 7.8%、5 6 .3 %。结论 增强MRI检查对乳腺疾病的确诊率明显高于其它检查方法。平扫MRI与X线、超声相比 ,对乳腺疾病的确诊率无明显提高 ,但明显高于红外线乳腺透照。

Objective To evaluate the application value of MRI in diagnosis of breast lesion.Methods 63 female patients with suspected breast lesion underwent X-ray mammography,breast infrared diaphany,plain and contrast-enhanced MRI examination,and then all of them received surgery treatment and pathologic examination.Results Among 63 cases,two cases of non-breastdisease,which were misdiagnosed by the three tranditional methods,were identified by MRI.Contrast-enhanced MRI had the sensitivity, specificity and overall accuracy being respectively 91.4%,96.2%,92.0% in terms of benign and malign lectiferous glands tumor,and Plain MRI presented an accuracy of 79.3% in terms of breast disease.X-ray mammography,ultrasound and breast infrared diaphany had an accuracy of 66.7%,67.8% and 56.3% respectively.Conclusion As far as diagnosis of breast lesions is concerned,contrast-enhanced MRI is superior to other methods and plain MRI presents no significant difference compared with X-ray and ultrasound,but it is better than infrared diaphany.