The Performance of Elastographic Diagnostic of Breast Tumor in Dr. Soetomo Teaching Hospital Surabaya

Abstract

Background: Elastography in breast cancer cases has not become a routine examination that is conducted

in the radiodiagnostic unit in Dr. Soetomo Teaching Hospital Surabaya. These last few years, elastography

has been an addition examination modality which is promising to assess breast lesions that are detected

byan ultrasound. Objective: The aim of the present study is to observe the performance of elastography in

breast tumor cases. Method: This cross-sectional study was conducted in Dr. Soetomo Teaching Hospital

Surabaya. The elastography is applied in 65 females (the average age is 49,1 years old) and it was found

66 lesions with a definitive diagnosis (34 benign tumors, 32 malignant tumors) which was proved through

a fine-needle aspiration biopsy. The grayscale result is classified into benign and malignant categorizations

with examining five descriptors including shape, margin, orientation, echo pattern, and posterior features.

Results: The elastography score showed that the sensitivity is 87,5 %, the specificity is 94,1 %, and the

accuracy is 90,9 % The stain ratio showed 93,8 %, 94,1 %, 90,9 % in sequence. On the other hand, the

grayscale result showed 96,9 %, 91,2 %, and 95,5 %. The combination of elastography and grayscale showed

a better performancewith the 97,1% of sensitivity, 94,1 % of specificity, and 93,8 % of accuracy. There was

a significant correlation between the lesion size and the quality of elastography result (P = .034) while there

was no correlation with the lesion depth (P = .624). Conslusion: The combination of elastography and

grayscale have a better diagnostic performance in distinguishing benign breast tumor with malignant breast

tumor.