Method and apparatus for diagnosis of breast tumors

Details Method and apparatus for diagnosis of breast tumors Method and apparatus for diagnosis of breast tumors

1991-07-31

1993-11-09

Envall, Jr., Roy N.

Boots, shoes, and leggings

36441301, 36441313, 382 15, 382 36, G06F 1500, G06K 962

Patent

active

052608719

ABSTRACT:
An apparatus for distinguishing benign from malignant tumors in ultrasonic images of candidate tissue taken from a patient. A region of interest is located and defined on the ultrasonic image, including substantially all of the candidate tissue and excluding substantially all the normal tissue. The region of interest is digitized, generating an array of pixels intensity values. A first features is generated from the arrays of pixels corresponding to the angular second moment of the pixel intensity values. A second feature is generated from the array of pixels corresponding to the inverse contrast of the pixel intensity values. A third feature is generated from the array of pixels corresponding to the short run emphasis of the pixel intensity values. The first, second and third feature values are provided to a neural network. A set of trained weights are applied to the feature values, which generates a network output between 0 and 1, whereby the output values tend toward 1 when the candidate tissue is malignant and the output values tend toward 0 when the candidate tissue is benign.

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