Quantitative image quality measurements of a digital breast tomosynthesis system.

Ultra-Fast Image Reconstruction of Tomosynthesis Mammography Using GPU

Digital Breast Tomosynthesis (DBT) is a technology that creates three dimensional (3D) images of breast tissue. Tomosynthesis mammography detects lesions that are not detectable with other imaging systems. If image reconstruction time is in the order of seconds, we can use Tomosynthesis systems to perform Tomosynthesis-guided Interventional procedures. This research has been designed to study u...

Quantitative Image Quality Measurements of a Digital Breast Tomosynthesis System Quantitative Messungen der Bildqualität an einem digitalen Brusttomosynthesesystem

Ziel: Das Ziel der Studie war die quantitative Messung der Bildqualität an einem Brusttomosynthesesystem. Material und Methoden: Die Signalübertragungseigenschaften (STP), die Modulationsübertragungsfunktion (MTF), das Rauschspektrum (NPS) und die detektive Quantenausbeute (DQE) wurden nach etablierten Methoden an einem Brusttomosynthesesystem Selenia Dimensions von Hologic gemessen. Das NPS wu...

Image Quality Phantom in Close Compliance with the ICRU-44 Breast Tissue Substitute Standard and Realistic Background Noise Pattern for Digital Breast Tomosynthesis

Digital breast tomosynthesis (DBT) is an emerging technique that allows for slices parallel with the detector to be constructed through the breast, as opposed to two dimensional mammography. Present phantoms for use on mammography systems are two dimensional in nature and focus mainly on differences in contrast. Since tomosynthesis is a three-dimensional-technique, a suitable phantom for use on...

Image quality comparison between digital breast tomosynthesis associated to synthesised image versus 2D FFDM

Digital Breast Tomosynthesis Reconstruction using Spatially Weighted Non-convex Regularization

Regularization is an effective strategy for reducing noise in tomographic reconstruction. This paper proposes a spatially weighted non-convex (SWNC) regularization method for digital breast tomosynthesis (DBT) image reconstruction. With a non-convex cost function, this method can suppress noise without blurring microcalcifications (MC) and spiculations of masses. To minimize the non-convex cost...