Micro-calcification detection in digital tomosynthesis mammography

Frederick W. Wheeler; A. G. Amitha Perera; Bernhard E. Claus; Serge L. Muller; Gero Peters; John P. Kaufhold

doi:10.1117/12.653478

10 March 2006 Micro-calcification detection in digital tomosynthesis mammography

Frederick W. Wheeler, A. G. Amitha Perera, Bernhard E. Claus, Serge L. Muller, Gero Peters, John P. Kaufhold

Proceedings Volume 6144, Medical Imaging 2006: Image Processing; 614420 (2006) https://doi.org/10.1117/12.653478
Event: Medical Imaging, 2006, San Diego, California, United States

Abstract

A novel technique for the detection and enhancement of microcalcifications in digital tomosynthesis mammography (DTM) is presented. In this method, the DTM projection images are used directly, instead of using a 3D reconstruction. Calcification residual images are computed for each of the projection images. Calcification detection is then performed over 3D space, based on the values of the calcification residual images at projection points for each 3D point under test. The quantum, electronic, and tissue noise variance at each pixel in each of the calcification residuals is incorporated into the detection algorithm. The 3D calcification detection algorithm finds a minimum variance estimate of calcification attenuation present in 3D space based on the signal and variance of the calcification residual images at the corresponding points in the projection images. The method effectively detects calcifications in 3D in a way that both ameliorates the difficulties of joint tissue/microcalcification tomosynthetic reconstruction (streak artifacts, etc.) and exploits the well understood image properties of microcalcifications as they appear in 2D mammograms. In this method, 3D reconstruction and calcification detection and enhancement are effectively combined to create a calcification detection specific reconstruction. Motivation and details of the technique and statistical results for DTM data are provided.

Citation Download Citation

Frederick W. Wheeler, A. G. Amitha Perera, Bernhard E. Claus, Serge L. Muller, Gero Peters, and John P. Kaufhold "Micro-calcification detection in digital tomosynthesis mammography", Proc. SPIE 6144, Medical Imaging 2006: Image Processing, 614420 (10 March 2006); https://doi.org/10.1117/12.653478

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