Elimination of tomosynthetic artifacts through integration of orthogonal volume sets

Timothy M. Persons; Paul F. Hemler; Richard L. Webber; Hunter A. Underhill

doi:10.1117/12.349575

28 May 1999 Elimination of tomosynthetic artifacts through integration of orthogonal volume sets

Timothy M. Persons, Paul F. Hemler, Richard L. Webber, Hunter A. Underhill

Proceedings Volume 3659, Medical Imaging 1999: Physics of Medical Imaging; (1999) https://doi.org/10.1117/12.349575
Event: Medical Imaging '99, 1999, San Diego, CA, United States

Abstract

Three-dimensional (3D) visualization of tomosynthetically generated focal planes computed with conventional techniques is limited by distortions caused from nonuniform sampling and projection magnification. These distortions are inherent to diagnostic systems with fixed, off-axis sampling geometry using a proximal source of radiation. This paper describes a technique for significantly reducing these distortions by merging independently generated sets of orthogonally oriented tomosynthetic slices. Precise registration of corresponding points of the slice volumes is required by the merging process. This is achieved by compensating projective transformations of the respective slice stacks to correct for slice-specific variation in image magnification. The result is a relatively distortion-free 3D image comprised of isotropic (cubic) voxels.

Citation Download Citation

Timothy M. Persons, Paul F. Hemler, Richard L. Webber, and Hunter A. Underhill "Elimination of tomosynthetic artifacts through integration of orthogonal volume sets", Proc. SPIE 3659, Medical Imaging 1999: Physics of Medical Imaging, (28 May 1999); https://doi.org/10.1117/12.349575

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