Analysis of imaging features of dynamic contrast-enhanced MRI in the detection of invasive ductal carcinoma of breast cancer

Objective To investigate the imaging features of MRI in patients with invasive ductal carcinoma of breast cancer. Methods 75 patients with breast ductal carcinoma treated by surgical treatment were selected.According to the age, 75 patients were divided into young group(≤40 years) with 22 cases and elderly group(>40 years) with 53 cases.The morphology, location, size, border and edge of the two groups were analyzed.The time signal intensity curve(TIC) was analyzed. Results The proportion of patients with non-luminal invasive ductal carcinoma of the young group was 54.55%, which was higher than 30.19% of the elderly group, the difference was statistically significant(χ2=3.94, P=0.047). The proportion of breast cancer infiltrating ductal carcinoma in the young group was 63.64%, which was higher than 37.74% in the elderly group, the difference was statistically significant(χ2=4.21, P=0.040). The proportion of the infarcted ductal carcinoma in the young group was 59.09%, and that in the elderly group was 62.26%, the difference was not statistically significant(χ2=2.19, P=0.14). The proportion of breast invasive ductal carcinoma in the young group was 63.64%, which in the elderly group was 54.72%, the difference was not statistically significant(χ2=0.13, P=0.72). Ⅰ, Ⅱ and Ⅲ type of breast ductal carcinoma TIC in the young group were 0cases, 14cases, 8cases, respectively, which in the elderly group were 0cases, 36cases, 17cases, respectively, there was no statistically significant difference in TIC grade between the two groups(χ2=2.26, P=0.13). Conclusion Breast infiltrating ductal carcinoma is mostly pulmonary lump type, tumor border is unclear; MRI dynamic enhancement technique for the detection of breast invasive ductal carcinoma can reduce misdiagnosis. Key words: Magnetic resonance angiography; Breast neoplasms; Young adult