Scanning Systems, Laser, Mammographic
Definition : Laser scanning systems that use laser light at two different frequencies (e.g., 690 nm, 810 nm) to produce optical images of the breast. The light is modulated and transmitted through the breast using optical fibers and typically detected using a photomultiplier. The breast is scanned with both laser rays in tandem, making multiple passes and obtaining optical slices that are processed and displayed to form a continuous image on a video optical display. These scanning systems are used to identify small cancerous lesions based on the fact that optical properties of cancerous tissue are significantly different from those of healthy tissue (e.g., angiogenesis associated with cancer).
Entry Terms : "Mammography Units"
UMDC code : 18447