Stereotactic biopsy system, diagnostic x-ray, mammography

Stereotactic biopsy systems determine the three-dimensional location of target lesions using information obtained from stereotactic pairs of two-dimensional X-ray images , consisting of a biopsy unit with needle guides, needles, an examination table, and an integral computer for communicating lesion coordinates . These devices guide interventional procedures in the breast including vacuum assisted biopsy, core biopsy, pre-surgical localisation, and fine needle aspirations, particularly for mammographically identified lesions such as calcifications, masses, asymmetries and architectural distortions that are not visible under ultrasound .