Scatter correction for a clinical cone‐beam CT system using an optimized stationary beam blocker in a single scan

2019 ◽  
Vol 46 (7) ◽  
pp. 3165-3179 ◽  
Author(s):  
Xiaokun Liang ◽  
Yangkang Jiang ◽  
Wei Zhao ◽  
Zhicheng Zhang ◽  
Chen Luo ◽  
...  
Keyword(s):  
Cone Beam Ct ◽  
Scatter Correction ◽  
Cone Beam ◽  
Ct System

SU-F-J-211: Scatter Correction for Clinical Cone-Beam CT System Using An Optimized Stationary Beam Blocker with a Single Scan

2016 ◽  
Vol 43 (6Part12) ◽  
pp. 3457-3457 ◽  
Author(s):  
X Liang ◽  
S Gong ◽  
Q Zhou ◽  
Z Zhang ◽  
Y Xie ◽  
...  
Keyword(s):  
Cone Beam Ct ◽  
Scatter Correction ◽  
Cone Beam ◽  
Ct System

Scatter Correction Method for Cone Beam CT Using Beam Attenuation Grid

2011 ◽  
Vol 480-481 ◽  
pp. 341-346
Author(s):  
Shi Peng Xie ◽  
Li Min Luo ◽  
Li Feng Yang ◽  
Feng Zhang
Keyword(s):  
Cone Beam Ct ◽  
Scatter Correction ◽  
Correction Method ◽  
Cone Beam ◽  
Computationally Efficient ◽  
Beam Attenuation ◽  
Projection Image ◽  
Projection Images ◽  
Ct System

The scattering phenomenon has an important influence on the reconstructed image in Cone Beam CT (CBCT) imaging systems, and is a long-lasting research topic on CBCT. Focusing on the scatter artifact in the cone beam CT system, we proposed a new scatter correction method that needed to add a beam attenuation grid (BAG) between the X - ray source and the tested object. This study educed the scatter correction algorithm based on the Beer theorem. Through subtracting the scatter distribution image from the original projection image, we can acquire the scatter-corrected projection Images of the tested object. The method has been verified by preliminary experimental results on phantom. The result showed that the method can effectively reduce the scatter artifacts, increase the image contrast and increase the quality of the reconstructed slice image. This method is computationally efficient and easy to implement without the loss of real-time imaging capabilities.

Dose and Image Quality Evaluation of a Dedicated Cone-Beam CT System for High-Contrast Neurologic Applications

2010 ◽  
Vol 194 (2) ◽  
pp. W193-W201 ◽  
Author(s):  
Lifeng Yu ◽  
Thomas J. Vrieze ◽  
Michael R. Bruesewitz ◽  
James M. Kofler ◽  
David R. DeLone ◽  
...  
Keyword(s):  
Image Quality ◽  
Quality Evaluation ◽  
Cone Beam Ct ◽  
Cone Beam ◽  
High Contrast ◽  
Image Quality Evaluation ◽  
Ct System

X-ray scatter correction algorithm for cone beam CT imaging

2004 ◽  
Vol 31 (5) ◽  
pp. 1195-1202 ◽  
Author(s):  
Ruola Ning ◽  
Xiangyang Tang ◽  
David Conover
Keyword(s):  
Cone Beam Ct ◽  
Scatter Correction ◽  
Ct Imaging ◽  
Cone Beam ◽  
Correction Algorithm ◽  
X Ray

Implementation and evaluation of the half-scan scheme based on CBCT (cone-beam CT) system

2004 ◽  
Author(s):  
Dong Yang ◽  
Ruola Ning ◽  
Yong Yu ◽  
David Conover ◽  
Xianghua Lu
Keyword(s):  
Cone Beam Ct ◽  
Cone Beam ◽  
Ct System

scholarly journals Noise power properties of a cone-beam CT system for breast cancer detection

2008 ◽  
Vol 35 (12) ◽  
pp. 5317-5327 ◽  
Author(s):  
Kai Yang ◽  
Alexander L. C. Kwan ◽  
Shih-Ying Huang ◽  
Nathan J. Packard ◽  
John M. Boone
Keyword(s):  
Breast Cancer ◽  
Cancer Detection ◽  
Cone Beam Ct ◽  
Breast Cancer Detection ◽  
Cone Beam ◽  
Noise Power ◽  
Ct System ◽  
Power Properties

scholarly journals Scatter correction for cone-beam CT in radiation therapy

2009 ◽  
Vol 36 (6Part1) ◽  
pp. 2258-2268 ◽  
Author(s):  
Lei Zhu ◽  
Yaoqin Xie ◽  
Jing Wang ◽  
Lei Xing
Keyword(s):  
Radiation Therapy ◽  
Cone Beam Ct ◽  
Scatter Correction ◽  
Cone Beam
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