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Method to improve cancerous lesion detection sensitivity in a dedicated dual-head scintimammography system

United States Patent

July 3, 2012
View the Complete Patent at the US Patent & Trademark Office
Thomas Jefferson National Accelerator Facility - Visit the Technology Review Committee Website
An improved method for enhancing the contrast between background and lesion areas of a breast undergoing dual-head scintimammographic examination comprising: 1) acquiring a pair of digital images from a pair of small FOV or mini gamma cameras compressing the breast under examination from opposing sides; 2) inverting one of the pair of images to align or co-register with the other of the images to obtain co-registered pixel values; 3) normalizing the pair of images pixel-by-pixel by dividing pixel values from each of the two acquired images and the co-registered image by the average count per pixel in the entire breast area of the corresponding detector; and 4) multiplying the number of counts in each pixel by the value obtained in step 3 to produce a normalization enhanced two dimensional contrast map. This enhanced (increased contrast) contrast map enhances the visibility of minor local increases (uptakes) of activity over the background and therefore improves lesion detection sensitivity, especially of small lesions.
Kieper; Douglas Arthur (Seattle, WA), Majewski; Stanislaw (Morgantown, WV), Welch; Benjamin L. (Hampton, VA)
Jefferson Science Associates, LLC (Newport News, VA)
12/ 913,372
October 27, 2010
The United States of America may have certain rights to this invention under Management and Operating Contract No. DE-AC05-84ER 40150 from the Department of Energy.