The MRI diagnosis of the breast fibroadenoma with a washout type of the time signal intesity curve
10.3969/j.issn.1002-1671.2016.08.011
- VernacularTitle:廓清型乳腺纤维腺瘤的 MRI 诊断
- Author:
Qinqing LI
;
Jun YANG
;
Yingying DING
;
Zhuolin LI
;
Yang LIU
- Publication Type:Journal Article
- Keywords:
breast fibroadenoma;
time signal intensity curve;
washout type;
magnetic resonance imaging
- From:
Journal of Practical Radiology
2016;32(8):1205-1208
- CountryChina
- Language:Chinese
-
Abstract:
Objective To investigate the MRI findings of the breast fibroadenoma which has a washout type of time signal intensity curve (TIC)for the purpose of improving imaging diagnosis.Methods The MRI findings of 20 cases of the breast fibroadenoma with a washout TIC and 20 cases of breast carcinoma verified by histopathology were analyzed retrospectively.Morphological features,internal signal, ADC value and dynamic enhancement performance of the two groups were compared with each other.Results The shapes of the breast fibroadenomas were more commonly ovoid or round (18/20),and the margins were circumscribed(16/20),Most of the fibroadenomas were high intensity in T2 WI with the non-contrast enhanced separations (9/20).The average minimum ADC value was (1.412±0.332)×10-3 mm2/s,and higher than that of breast cancer (0.888 ±0.1 60)×10 -3 mm2/s with the significant difference (P <0.05).Enhancement scanning showed relatively homogeneous enhancement (16/20).The early enhancement ratio of the breast fibroadenoma was (1.694±0.628)×100% on average,and lower than that of breast cancer (1.849 ±0.430)× 100%.The difference was no statistical significance(P >0.05 ). Conclusion The breast fibroadenoma with washout TIC has a similar performance with the breast cancer in TIC and the early enhancement rate, however,the clear edge,higher T2 WI signal intensity,the non-contrast enhanced internal separations and higher ADC values are helpful to the diagnosis of breast fibroadenoma with washout TIC.
