Structure-adaptive CBCT reconstruction using weighted total variation and Hessian penalties

Q Shi, N Sun, T Sun, J Wang, S Tan - Biomedical optics express, 2016 - opg.optica.org
The exposure of normal tissues to high radiation during cone-beam CT (CBCT) imaging
increases the risk of cancer and genetic defects. Statistical iterative algorithms with the total …

CT reconstruction from few-views by anisotropic total variation minimization

M Debatin, P Zygmanski… - 2012 IEEE Nuclear …, 2012 - ieeexplore.ieee.org
Dose reduction is an important factor in medical imaging, One of the key strategies to reduce
the dose in CT reconstruction is undersampling, The recently proposed Compressed …

Feasibility of using single photon counting X-ray for lung tumor position estimation based on 4D-CT

KP Aschenbrenner, CV Guthier, Y Lyatskaya… - … für Medizinische Physik, 2017 - Elsevier
Purpose In stereotactic body radiation therapy of lung tumors, reliable position estimation of
the tumor is necessary in order to minimize normal tissue complication rate. While kV X-ray …

Monochromatic-beam-based dynamic X-ray microtomography based on OSEM-TV algorithm

L Xu, R Chen, Y Yang, B Deng, G Du… - Journal of X-Ray …, 2017 - content.iospress.com
Monochromatic-beam-based dynamic X-ray computed microtomography (CT) was
developed to observe evolution of microstructure inside samples. However, the low flux …

Toward optimal X-ray flux utilization in breast CT

JH Jørgensen, PC Hansen, EY Sidky, IS Reiser… - arXiv preprint arXiv …, 2011 - arxiv.org
A realistic computer-simulation of a breast computed tomography (CT) system and subject is
constructed. The model is used to investigate the optimal number of views for the scan given …

Noise-robust breathing-phase estimation on marker-free, ultra low dose X-ray projections for real-time tumor localization via surrogate structures

MFW Dellmann, KI Jerg, J Stratemeier… - … für Medizinische Physik, 2021 - Elsevier
Purpose This paper presents a novel strategy for feature-based breathing-phase estimation
on ultra low-dose X-ray projections for tumor motion control in radiation therapy. Methods …

Geometrical Calibration and Filter Optimization for Cone-Beam Computed Tomography

J Muders - 2015 - archiv.ub.uni-heidelberg.de
This thesis will discuss the requirements of a software library for tomography and will derive
a framework which can be used to realize various applications in cone-beam computed …

Incorporation of local dependent reliability information into the prior image constrained compressed sensing (PICCS) reconstruction algorithm

S Vaegler, D Stsepankou, J Hesser, O Sauer - Zeitschrift für Medizinische …, 2015 - Elsevier
Purpose The reduction of dose in cone beam computer tomography (CBCT) arises from the
decrease of the tube current for each projection as well as from the reduction of the number …

Conception et évaluation d'un nouvel algorithme de reconstruction itérative en tomodensitométrie à faisceau conique implanté sur matériel graphique

D Matenine - 2017 - library-archives.canada.ca
La présente thèse s' inscrit dans le domaine de la physique médicale et, plus précisément,
de l'imagerie médicale tridimensionnelle (3D) et de la dosimétrie 3D pour la radiothérapie …

Multi-GPU cone-beam CT reconstruction

H Yan, X Wang - … Unit-Based High Performance Computing in …, 2015 - api.taylorfrancis.com
6.1 INTRODUCTION C-CT (CBCT)[1, 2] is widely used in image-guided radiation therapy
(IGRT) for pretreatment patient setup and reconstruction plays a vital role in CBCT. Over the …