Efficient object scatter correction algorithm for third and fourth generation CT scanners

1999 ◽  
Vol 9 (3) ◽  
pp. 563-569 ◽  
Author(s):  
B. Ohnesorge ◽  
T. Flohr ◽  
K. Klingenbeck-Regn
Keyword(s):  
Scatter Correction ◽  
Fourth Generation ◽  
Correction Algorithm ◽  
Ct Scanners

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

An online cross-scatter correction algorithm for dual-source CT: effects on CT number accuracy and noise

2009 ◽  
Author(s):  
Christian D. Eusemann ◽  
Anja Apel ◽  
Bernhard Schmidt ◽  
Alisa I. Walz-Flannigan ◽  
Megan C. Jacobsen ◽  
...  
Keyword(s):  
Scatter Correction ◽  
Dual Source Ct ◽  
Correction Algorithm ◽  
Ct Number ◽  
Dual Source ◽  
Cross Scatter

TH-D-BRC-03: A Fast Scatter-Correction Algorithm for KeV CBCT

2009 ◽  
Vol 36 (6Part28) ◽  
pp. 2812-2812
Author(s):  
G Poludniowski ◽  
P Evans ◽  
V Hansen ◽  
S Webb
Keyword(s):  
Scatter Correction ◽  
Correction Algorithm

SU-F-J-198: A Cross-Platform Adaptation of An a Priori Scatter Correction Algorithm for Cone-Beam Projections to Enable Image- and Dose-Guided Proton Therapy

2016 ◽  
Vol 43 (6Part11) ◽  
pp. 3453-3545
Author(s):  
A Andersen ◽  
Y Park ◽  
O Casares-Magaz ◽  
U Elstroem ◽  
J Petersen ◽  
...  
Keyword(s):  
Proton Therapy ◽  
A Priori ◽  
Scatter Correction ◽  
Cone Beam ◽  
Correction Algorithm ◽  
Cross Platform

scholarly journals Scatter Artifact with Ga-68-PSMA-11 PET: Severity Reduced With Furosemide Diuresis and Improved Scatter Correction

2018 ◽  
Vol 17 ◽  
pp. 153601211881174 ◽  
Author(s):  
Courtney Lawhn-Heath ◽  
Robert R. Flavell ◽  
David E. Korenchan ◽  
Timothy Deller ◽  
Spencer Lake ◽  
...  
Keyword(s):  
Scatter Correction ◽  
Emission Tomography ◽  
Whole Body ◽  
Correction Algorithm ◽  
Resonance Imaging ◽  
Positron Emission ◽  
Psma Pet ◽  
Magnetic Resonance Imaging Mri ◽  
Specific Membrane

Purpose: To assess the utility of furosemide diuresis and the role of an improved scatter correction algorithm in reducing scatter artifact severity on Ga-68- Prostate-specific membrane antigen (PSMA)-11 positron emission tomography (PET). Materials and Methods: A total of 139 patients underwent Ga-68-PSMA-11 PET imaging for prostate cancer: 47 non-time-of-flight (non-TOF) PET/computed tomography, 51 PET/magnetic resonance imaging (MRI) using the standard TOF scatter correction algorithm, and 41 PET/MRI using an improved TOF scatter correction algorithm. Whole-body PET acquisitions were subdivided into 3 regions: around kidneys; between kidneys and bladder; and around bladder. The images were reviewed, and scatter artifact severity was rated using a Likert-type scale. Results: The worst scatter occurred when using non-TOF scatter correction without furosemide, where 42.1% of patients demonstrated severe scatter artifacts in 1 or more regions. Improved TOF scatter correction resulted in the smallest percentage of studies with severe scatter (6.5%). Scatter ratings by region were lowest using improved TOF scatter correction. Furosemide reduced mean scatter severity when using non-TOF and standard TOF. Conclusions: Both furosemide and scatter correction algorithm play a role in reducing scatter in PSMA PET. Improved TOF scatter correction resulted in the lowest scatter severity.

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