Image Fusion of Reconstructed Digital Tomosynthesis Volumes From a Frontal and a Lateral Acquisition
Artikel i vetenskaplig tidskrift, 2016

Digital tomosynthesis (DTS) has been used in chest imaging as a low radiation dose alternative to computed tomography (CT). Traditional DTS shows limitations in the spatial resolution in the out-of-plane dimension. As a first indication of whether a dual-plane dual-view (DPDV) DTS data acquisition can yield a fair resolution in all three spatial dimensions, a manual registration between a frontal and a lateral image volume was performed. An anthropomorphic chest phantom was scanned frontally and laterally using a linear DTS acquisition, at 120 kVp. The reconstructed image volumes were resampled and manually co-registered. Expert radiologist delineations of the mediastinal soft tissues enabled calculation of similarity metrics in regard to delineations in a reference CT volume. The fused volume produced the highest total overlap, implying that the fused volume was a more isotropic 3D representation of the examined object than the traditional chest DTS volumes.


Jonathan Arvidsson

Göteborgs universitet

Christina Söderman

Göteborgs universitet

Åse (Allansdotter) Johnsson

Sahlgrenska Universitetssjukhuset

Peter Bernhardt

Göteborgs universitet

Göran Starck

Göteborgs universitet

Fredrik Kahl

Signaler och system, Signalbehandling och medicinsk teknik, Digitala bildsystem och bildanalys

Magnus Båth

Göteborgs universitet

Radiation protection dosimetry

1742-3406 (eISSN)

Vol. 169 410-415


Radiologi och bildbehandling