Title of article :
Quality Evaluation of Image Recording Strategies for Limited Angle Tomography
Author/Authors :
Stopp, Fabian Charité – Universitätsmedizin Berlin - Department of Maxillofacial Surgery and Clinical Navigation, Germany , Winne, Christian Fraunhofer Institute for Production Systems and Design Technology, Germany , Jank, Emanuel Fraunhofer Institute for Production Systems and Design Technology, Germany , Keeve, Erwin Charité – Universitätsmedizin Berlin - Department of Maxillofacial Surgery and Clinical Navigation, Germany , Keeve, Erwin Fraunhofer Institute for Production Systems and Design Technology, Germany
Abstract :
In this paper we propose a new method for evaluating image recording strategies for limited angle tomography. In limited angle tomography exact three-dimensional (3-D) reconstruction is not achievable.With this method a metric for the reachable reconstruction quality by defined X-ray source trajectories is calculated.The result of our method is independent of reconstruction algorithms. Our approach is based on the gradients of the scanned volume and their grade of determinability. Compared to simulated reconstruction accuracy with simultaneous algebraic reconstruction techniques, the method of evaluation shows the same dependencies on X-ray source trajectories. By using the proposed method different source trajectories for a limited angle range are comparable with respect to the reachable reconstruction quality.
Keywords :
3 , D reconstruction quality , intraoperative imaging , limited angle tomography , X , ray source trajectories
Journal title :
Tsinghua Science and Technology
Journal title :
Tsinghua Science and Technology
