The present invention comprises an image processing system to process an array of ultrasonic scanning image data. The image processing system is capable of performing local attenuation estimations by the use of the scanned data and displaying the estimated local attenuations in clearly identifiable images...http://www.google.com/patents/US5627906?utm_source=gb-gplus-sharePatent US5627906 - Image processing system for producing an attenuation map of a scanned image
