Abstract:

Objective To investigate the imaging features of breast cancer in 3.0T MRI dynamic enhanced scanning and diffusion-weighted imaging （DWI）.　Methods 3.0T MRI imaging data were analyzed for 36 patients with breast cancer confirmed by surgery and pathology in our hospital.　Results Breast cancer presented an equal or slightly lower signal based on normal MRI and T1-weighted imaging；it presented equal or slightly higher signal on T2-weighted imaging.Tumor shape was irregular and showed different depth leaflets，fuzzy boundaries，and visible spicule signs.　DWI showed all lesions as presenting high signal，while ADC presented low signal.　Dynamic enhancement led to uneven reinforcement and always presented as motting，strip or mass.　Peripheral vascular shadow around the partial lesion was increased.　The time-signal intensity curve showed a type Ⅲ curve in 29 cases （80.6%），a type Ⅱ curve in 5 cases （13.9%），and a typeⅠ curve in only 2 cases （5.5%）.　A total of 34 of 36 cases were correctly diagnosed as breast cancer，while the remaining 2 cases were misdiagnosed as fibroadenoma.　The diagnostic coincidence rate was 94.4%.　Conclusion 3.0T MRI dynamic enhanced scanning and DWI correlate well for diagnosis of breast cancer.

Key words: Breast neoplasmas, Magnetic resonance imaging, Diffusion weighted imaging