High resolution breast imaging device utilizing non-ionizing rad

Details High resolution breast imaging device utilizing non-ionizing rad High resolution breast imaging device utilizing non-ionizing rad

1984-08-27

1987-03-10

Howell, Janice A.

Radiant energy

Invisible radiant energy responsive electric signalling

With means to inspect passive solid objects

250339, 250341, 2503601, 128664, 128665, G01N 2127, G01N 2159

Patent

active

046492755

ABSTRACT:
The present invention provides a method and apparatus for high resolution breast imaging which uses collimated light (in the near Ultraviolet, visible, or infra-red) of a narrow spectral bandwidth rather than ionizing X-ray radiation. The collimated light is transmitted through the breast, losing intensity due to the reflective, absorptive and refractive properties of the breast materials in the beam path. Normal and diseased breast materials may exhibit distinctive characteristics from each other when exposed to different wavelength of light. Several images can be acquired at distinct wavelengths of light to help differentiate normal and diseased breast materials. Light transmitted through the breast is recorded by a photodetector, generating an analog signal which can then be digitized and made available to a computer for analysis, processing and display. The light transmitted through the breast can be collimated to reduce the level of scattered light which reaches the photodetector, improving image quality.

REFERENCES:
patent: 4124301 (1978-11-01), Pocock
patent: 4203037 (1980-05-01), Gur et al.
patent: 4212306 (1980-07-01), Mahmud
patent: 4303336 (1981-12-01), Cullis
patent: 4467812 (1984-08-01), Stoller
patent: 4515165 (1985-05-01), Carroll
James L. Lauer and Vincent King, "Infrared Micro-Interferometer for Tissue Analysis", Proceedings of the Seventh New England Bioengineering Conference, Troy, New York (22-23 Mar. 1979), pp. 129-132.

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