Parallel-Shift Tomosynthesis for Orthopedic Applications

Conference contribution

Publication Details

Author(s): Luckner C, Sesselmann S, Mertelmeier T, Maier A, Ritschl L
Title edited volumes: Progress in Biomedical Optics and Imaging - Proceedings of SPIE
Publisher: SPIE
Publication year: 2018
Volume: 10573
Conference Proceedings Title: Proc. SPIE
Pages range: 105730G
ISBN: 9781510616356
ISSN: 1605-7422


The upsurge in interest of digital tomosynthesis is mainly caused by breast imaging; however, it finds more and more attention in orthopedic imaging as well. Offering a superior in-plane resolution compared to CT imaging and the additional depth information compared to conventional 2-D X-ray images, tomosynthesis may be an interesting complement to the other two imaging modalities. Additionally, a tomosynthesis scan is likely to be faster and the radiation dose is considerably below that of a CT. Usually, a tomosynthetic acquisition focuses only on one body part as the common acquisition techniques restrict the field-of-view. We propose a method which is able to perform full-body acquisitions with a standard X-ray system by shifting source and detector simultaneously in parallel planes without the need to calibrate the system beforehand. Furthermore, a novel aliasing filter is introduced which addresses the impact of the non-isotropic resolution during the reconstruction. We provide images obtained by filtered as well as unfiltered backprojection and discuss the influence of the scanning angle as well as the reconstruction filter on the reconstructed images. We found from the experiments that our method shows promising results especially for the imaging of anatomical structures which are usually obscured by each other since the depth resolution allows to distinguish between these structures. Additionally, as of the high isotropic in-plane spatial resolution of the tomographic volume, it is easily possible to perform precise measurements which are a crucial task, e. g. during the planning of orthopedic surgeries or the assessment of pathologies like scoliosis or subtle fractures.

FAU Authors / FAU Editors

Luckner, Christoph
Lehrstuhl für Informatik 5 (Mustererkennung)
Maier, Andreas Prof. Dr.-Ing.
Lehrstuhl für Informatik 5 (Mustererkennung)
Sesselmann, Stefan Dr.
Lehrstuhl für Orthopädie mit Orthopädischer Chirurgie

External institutions with authors

Siemens AG, Healthcare Sector

How to cite

Luckner, C., Sesselmann, S., Mertelmeier, T., Maier, A., & Ritschl, L. (2018). Parallel-Shift Tomosynthesis for Orthopedic Applications. In Proc. SPIE (pp. 105730G). Houston: SPIE.

Luckner, Christoph, et al. "Parallel-Shift Tomosynthesis for Orthopedic Applications." Proceedings of the Medical Imaging 2018: Physics of Medical Imaging, Houston SPIE, 2018. 105730G.


Last updated on 2019-18-03 at 13:23