Strain Ratio Measure and Improved 5-scoring System in Differentiation of Benign and Malignant Breast Tumors with Ultrasonic Elastography
10.3969/j.issn.1005-5185.2016.12.006
- VernacularTitle:超声弹性成像应变率比值法与改良5分法在乳腺良恶性肿瘤中的诊断价值
- Author:
Xiaodan HU
;
Rong XIAO
;
Zhaohui YANG
- Keywords:
Breast neoplasms;
Ultrasonography,mammary;
Elasticity imaging techniques;
Diagnosis,differential
- From:
Chinese Journal of Medical Imaging
2016;24(12):900-902
- CountryChina
- Language:Chinese
-
Abstract:
Purpose To investigate the value of strain ratio (SR) measure and improved 5-scoring system of ultrasonic elastography in the differentiation of benign and malignant breast tumors.Materials and Methods The data of 213 patients with breast cancer confirmed by pathology or surgery were retrospectively studied.All the patients underwent ultrasonic elasticity imaging examination and were evaluated by strain ratio (SR) method and improved 5-scoring system.Taking pathology as gold standard,we measured the sensitivity,specificity and accuracy of the two methods and evaluated the diagnostic efficiency.Results The area under curve (AUC) and 95％ CI of SR measure was 0.926,0.871-0.980 and that of improved 5-scoring system was 0.921,0.870-0.973.The best diagnostic limit of SR was 3.055,when SR ＞ 3.055,the lesions was malignant,when SR＜3.055,the lesions was benign.The sensitivity,specificity and accuracy of SR and improved 5-scoring system in diagnosing malignant breast lesions were 92.1％,92.7％,92.5％ and 85.5％,83.9％,84.5％,respectively.The specificity and accuracy of SR was higher than the improved 5-scoring method,the difference was statistically significant (P＜0.05),but there was no significant difference in sensitivity (P＞0.05).Conclusion SR is more objective in diagnosing malignant breast tumors,which has higher diagnostic value than improved 5-scoring system.
