Technetium-99m sestamibi in the diagnosis of breast cancer. The Mayagüez Medical Center experience.

The most successful screening procedures for breast cancer are breast physical examination and mammography. However, mammography has a positive predictive value of 15-30 for nonpalpable malignancy and of 22 for palpable carcinoma; this results in a large number of biopsies on patients with benign lesions. Furthermore, the benefit of mammography in woman with dense breast tissue (