Laser-Based Imaging System to Detect Breast Cancer

The imaging process does not require breast compression.

The new system, called SoftScan, is believed by its developers to be more effective in detecting lesions in women with implants, dense breast tissue, and postoperative scar tissue. A phase II clinical study involving 31 women found that SoftScan is safe and demonstrates potential for detection of breast cancer. In the study, optical images were compared with x-ray mammography and biopsy findings. The results revealed that three of the four malignancies were seen in optical images (one was outside the scan area), three of six solid benign lesions were seen (two were outside the scan area), and six of seven cysts were seen.

SoftScan is a single wavelength system that uses "time domain” imaging technology. A high-speed laser pulses through the breast, its photons traveling in different courses depending on the type of tissue or lesion encountered. The system produces characteristics of breast cancer that are not visible with other detection methods, such as blood volume and blood oxygen levels, while simultaneously providing a structural view of the breast. Once the scan is complete, the raw data are analyzed by computer and used to produce digital images. SoftScan is the product of Advanced Research and Technologies Inc. (ART, Montreal, Canada).