PET image reconstruction using kernel method

G Wang, J Qi - IEEE transactions on medical imaging, 2014 - ieeexplore.ieee.org
Image reconstruction from low-count positron emission tomography (PET) projection data is
challenging because the inverse problem is ill-posed. Prior information can be used to …

Constrained Minimization for Enhanced Exploitation of Gradient Sparsity: Application to CT Image Reconstruction

EY Sidky, R Chartrand, JM Boone… - IEEE journal of …, 2014 - ieeexplore.ieee.org
Exploiting sparsity in the image gradient magnitude has proved to be an effective means for
reducing the sampling rate in the projection view angle in computed tomography (CT). Most …

Compressive sampling in computed tomography: Method and application

Z Hu, D Liang, D Xia, H Zheng - … and Methods in Physics Research Section …, 2014 - Elsevier
Abstract Since Donoho and Candes et al. published their groundbreaking work on
compressive sampling or compressive sensing (CS), CS theory has attracted a lot of …

[PDF][PDF] 基于稀疏优化的计算机断层成像图像不完全角度重建综述

王林元, 刘宏奎, 李磊, 闫镔, 张瀚铭, 蔡爱龙, 陈建林… - 物理学报, 2014 - researchgate.net
计算机断层成像(computed tomography, CT) 技术在医学和工业无损检测中都具有非常广泛的
应用, CT 重建算法是其中的核心, 而不完全角度重建问题则是实际应用中重建算法研究领域的 …

14 C-arm CT in the interventional suite: Current status and future directions

R Fahrig, J Starman, E Girard, A Al-Ahmad, H Gao… - 2014 - api.taylorfrancis.com
Three-dimensional (3D) computed tomography (CT)–like reconstructions of patients based
on image data acquired in the interventional suite during an intervention first became …

Prior image based anisotropic edge guided TV minimization for few-view CT reconstruction

J Rong, P Gao, W Liu, Q Liao, C Jiao… - 2014 IEEE Nuclear …, 2014 - ieeexplore.ieee.org
To improve the spatial resolution of the image reconstructed by the conventional total
variation (TV) algorithm, we propose a prior image based anisotropic edge guided TV …

Motion artifacts on coronary CT angiography images in patients with a pericardial effusion

T Kondo, K Takamura, S Fujimoto, S Takase… - Journal of …, 2014 - Elsevier
Background Patients with a pericardial effusion can have a pendulum-like movement of the
heart. No reports associate the presence of pericardial fluid with coronary CT angiography …

Advances in image reconstruction methods for real-time magnetic resonance thermometry

J Prakash, NN Todd, PK Yalavarthy - Journal of the Indian Institute …, 2014 - journal.iisc.ac.in
Abstract Magnetic Resonance Imaging (MRI) has been widely used in cancer treatment
planning, which takes the advantage of high-resolution and high-contrast provided by it. The …

[PDF][PDF] Constrained TpV Minimization for Enhanced Exploitation of Gradient Sparsity: Application to CT Image Reconstruction

JM BOONE, X PAN - academia.edu
Exploiting sparsity in the image gradient magnitude has proved to be an effective means for
reducing the sampling rate in the projection view angle in computed tomography (CT). Most …

Impact of norm selections on the performance of four-dimensional cone-beam computed tomography (4DCBCT) using PICCS

Y Li, J Tang, GH Chen - Medical Imaging 2014: Physics of …, 2014 - spiedigitallibrary.org
Iterative image reconstruction methods have been proposed in computed tomography to
address two major challenges: one is to reduce radiation dose while maintaining image …