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Breast ultrasound, also known as sonography or ultrasonography, is frequently used to evaluate breast abnormalities that are found with screening, diagnostic mammography or during a physician-performed clinical breast exam. The ultrasound image is displayed in real time on the ultrasound system during the examination, enabling the clinician/technologist to place the ultrasound transducer over specific regions of the breast.

Breast ultrasound is used in the differentiation of breast tissue, since an ultrasound can distinguish between solid and fluid-filled lumps (cysts). Ultrasound is also useful in helping physicians guide a biopsy.

Ultrasound is currently used as an adjunct to mammography to characterize lesions, for biopsy guidance and as a way to image dense breast tissue. Siemens recently introduced a breakthrough in breast ultrasound technology called eSie Touch™ elasticity imaging. It is expected to enable physicians to accurately distinguish characteristics of breast lesions, which may reduce reliance on invasive breast biopsy procedures. Initial research indicates that Siemens' free hand elasticity imaging provides valuable information to the physician.²

²Radiological Society of North America 2006 Annual Meeting,
http://www.rsna.org/rsna/media/pr2006-2/elasticity_imaging-2.cfm

The American Cancer Society does not endorse any specific Siemens service or product.