Study of Malignant Breast Tumors using Ultrasound

Abstract

From February 2014 to November 2014 inclusive, (200) patients presented for breast imaging and of these, (100) formed the study group , All patients in the study group were imaged with breast ultrasound. There was inclusive and exclusive data due to the lack of required information. The appearance of specific types of breast carcinoma has been studied. Although appearances vary greatly, some patterns are typical,, Mucin-containing carcinomas are often circumscribed but may have irregular margins. These lesions may be either hypoechoic or isoechoic relative to subcutaneous fat. Statistical measures of accuracy, sensitivity, specificity, positive predictive (PPV) and negative predictive values (NPV) were calculated using 2x2 contingency tables. The ultrasound examinations were performed by Toshiba Xario (Toshiba Corporation, Tokyo, Japan) and sono scape . The ultrasound scan was performed in a radial pattern, beginning at the periphery of the breast and moving inward. Each quadrant was scanned with overlap at the 12-, 3-, 6- and 9-o’clock positions followed by three scanning in orthogonal planes to complete the assessment. Imaging of each axilla was deemed an essential part of the ultrasound. Malignant lesions had a mean size of (4.35) mm (SD .37) . most of the patients was from various Sudan states (about 90%), while 10 was from Khartoum city that mean place may considered as risk factor. Age risk factor at the range of classes (40- 49).most of the patients was a housekeeper that mean the job is not considered as a risk factor. IV

The prevalence of cancer in the screened population was 56% of patients. The statistical measures of accurac, sensitivity, specificity, positive predictive (PPV) and negative predictive values (NPV) were calculated. Malignant lesions were detected in each patient group at the rate of 43% 89%, 84%, 87% and 86% respectively. In this study, breast ultrasound significantly increases the cancer detection rate and should be considered as an important in the patient with positive imaging findings. Ultrasonography has been playing an increasingly important role in the evaluation of breast cancer as well as evaluation of many abnormalities seen on mammograms. US is also useful in the guidance of biopsies and therapeutic procedures.