الفهرس 
The additional role of ultrasound elastography in characterization of BIRADS 3 & 4a breast lesions
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Abstract
Introduction: Breast cancer is the most common malignancy and one of the leading causes of death in females worldwide. Conventional B mode Ultrasound (US) is an important adjunct to mammography for clinical diagnosis of breast disease. Ultrasound elastography has been introduced as an additional diagnostic tool to B-mode US that could increase the diagnostic performance of conventional ultrasound based on the fact that breast cancer is usually harder than benign breast lesions. Aim of the work: In our study we assessed the diagnostic performance of strain elastography added to the conventional B-mode ultrasound in evaluating BIRADS 3 & 4a breast lesions. Patients and methods: This is a prospective study done on 50 female patients in women imaging unit at Kasr Al Ainy hospital between September 2020 and March 2021. Ultrasound Elastography (UE) was performed following B mode breast ultrasound to evaluate its possible impact on accurate diagnosis. All female patients with BIRADS 3 & 4a breast lesions were included in the study except who refused to enter the study or to do biopsy. The findings were evaluated independently on both conventional US and UE; were final BIRADS classification was given to each case and an E-score was given according to the 5 points scoring system and the strain ratio was calculated. Results were then compared to histopathology results as the golden standard. Results: Regarding quantitative elastography by using strain ratio of 3.8 as a cut off value, the mean SR for malignant lesions (mean 3.95 ± 1.59; range 2.1 {u2013} 5.5) was significantly greater than that for benign lesions (mean 1.9 ± 1.06; range 0.5 {u2013} 4.8); p value 0.007 was considered to indicate significant differences