Historical Evolution:

BSGI Evolved Beyond Scintimammography

Breast-Specific Gamma Imaging (BSGI), or molecular breast imaging, evolved from a related nuclear medicine imaging procedure of the breast called scintimammography. Scintimammography, like BSGI, is based on imaging the enhanced uptake of sestamibi in tumors within the breast. For years, scintimammography showed considerable promise to be a strong diagnostic tool in the early detection of breast cancer.

However, the limitations of scintimammography as performed with large general-purpose gamma cameras did not allow for the reliable detection of sub-centimeter lesions or direct correlation to mammograms, thus limiting the capability of this promising diagnostic tool.

The Dilon 6800® overcame these limitations:

  • reliably detects sub-centimeter lesions, down to 1mm in clinical studies
  • provides the ability to image in the same views as mammography
  • compact design and mobility allows for same-day evaluation and imaging at the point of care
  • can be positioned directly against the chest wall to improve spatial resolution
  • rotates to obtain all possible views

Large general-purpose gamma cameras, as used in scintimammography, are designed for whole-body imaging. Advances in the technology for gamma detectors has led to the progression of a functional breast imaging procedure that is now achieved with anatomic-specific detectors optimized for high-resolution breast imaging.
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