Comparative Study of MRI and Mammography in the Diagnosis of Breast Diseases Presented as Non-mass Like Enhancement

Objective To compare the sensitivity,specificity and veracity of MRI and mammography in detecting breast diseases presented as non- mass like enhancement( NMLE). Methods Through regarding pathologic diagnosisas the gold standard,presented as single NMLE lesions,70 patients' diagnostic performance and imaging features were analyzed. MRI parameters included time- signal curve and MRI apparent diffusion coefficient. Results Pathologically,24 were benign and 46 were malignant. The sensitivity of MRI and mammography was 89. 1% and 41. 3% respectively and the specificity was 62. 5% and 95. 8%. The calcification,structure distortion and disorder,common incidental signs on mammography and time- signal curve and MRI apparent diffusion coefficient on MRI were the key indexes for cancer detection and diagnosis. Conclusion Mammography has poor sensitivity and characteristics of a single lesion image in detecting breast lesions and may lead to misdiagnosis. MRI will be an important examination method for NMLE.