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| The value of area ratio on ultrasonographic elastography with different planes indifferentiating diagnosis of BI-RADS 4 breast malignant tumor |
| HUANG Chun-rong, YANG Shao-wei, XIE Li-ling, CHENG Hong, LI Jian, CHEN Ya-ting |
| Department of Diagnostic Ultrasound, Huangjiang Hospital, Dongguan Guangdong 523750, China |
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Abstract Objective: To explore the diagnostic value of area ratio on ultrasonographic elastography with different planes in differentiating benign from malignant BI-RADS 4 breast tumors. Methods: Ninety-seven patients with 116 BI-RADS 4 breast tumors were examined by ultrasonographic elastography with the plane of the maximum diameter(plane A), the plane of maximum aspect ratio(plane B) and the maximum area plane of interest(plane C). The ultrasonographic elastography images were analyzed in area ratio method. The pathologic diagnosis was the gold standard. The diagnostic value of the 3 planes was evaluated with receiver operating characteristic(ROC) curve. Results: The area ratios of benign and malignant BI-RADS 4 breast tumors were significantly different in plane A, B and C. The ROC curve of the three planes showed no significant difference. The cut-off point of area was 1.33 by ROC cure in plane A. The sensitivity, specificity and accuracy of area ratio in plane A were 75.8%, 95.2% and 89.7%, respectively. The cut-off point of area was 1.25 by ROC cure in plane B. The sensitivity, specificity and accuracy of area ratio in plane B were 84.8%, 85.5% and 85.3%, respectively. The cut-off point of area was 1.55 by ROC cure in plane C. The sensitivity, specificity and accuracy of area ratio in plane C were 81.8%, 95.2% and 91.4%, respectively. Conclusion: Area ratio on ultrasonographic elastography image with different planes can help to differentiate benign from malignant BI-RADS 4 breast tumors.
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Received: 01 September 2014
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2015, Vol. 26 
