Aim: Breast cancer is the second leading cause of death in women. This study sought to evaluate the role of ultrasonography in identifying benign from malignant breast tumors using the Resistive Index and Pulsatility Index values.
Materials and Methods: The data were collected from 60 patients having breast cancer between the ages of 20-60 who visited the Allied Hospital for breast imaging by close-ended questionnaire. The data were analyzed by correlation with the help of SPSS V22.
Results: Patients were divided into two groups; benign (35 cases) and malignant (25 cases). Fibroadenoma was the most common benign tumor while invasive ductal carcinoma was the most common malignant tumor. There was no obvious difference in the location of benign and malignant breast lesions, but the majority of lesions (40%) were located in the upper outer quadrant. After combining all benign and malignant lesions, the correlation coefficient, or r value, was 0.399 (P=0.066). The resistive index revealed 25 malignant cases (41%) and 35 benign cases (58%) which were not statistically significant (P=0.16). However, Pulsatility Index revealed 34 benign cases (57%) and 26 cancer cases (43%) which were statistically insignificant (P=0.13). However, ultrasound’s sensitivity, specificity, and positive and negative predictive values were 93.8%, 86.5%, 86.9%, and 93.8% respectively.
Conclusion: This study showed that malignant lesions had higher values for the Doppler parameters (RI, PI), while benign lesions had lower values while benign lesions are more common than malignant ones. RI helps radiologists when to perform a biopsy.
Key words: Breast cancer, benign breast lesions, malignant breast lesions, resistive Index, pulsatility index
|
