EXPERIENCE WITH HIGH RESOLUTION (10 MHz) REAL TIME BREAST ULTRASOUND.

Many studies have demonstrated that a combination of mammography and ultrasound is more efficacious in diagnosing breast disease than is either study alone. We report our experience with 1,000 cases examined by mammography and a high resolution 10 MHz real-time hand-held probe (Diasonics 10 MHz duplex probe). Cystic lesions 1 mm and smaller in diameter are detectable, and we have prospectively demonstrated solid lesions such as intraductal papillomas as small as 2 multiplied by 3 multiplied by 5 mm. Several small carcinomas in the 5 to 10 mm diameter range have been demonstrable. Additionally, microcalcifications have been shown in a larger percentage of cases than has been described with other sonographic devices. We have used ultrasound guidance for needle localization and needle biopsy and are able to demonstrate the localization wire sonographically.