Basic Principles of CT Dose Index and Understanding of CT Parameter for Dose Reduction Technique

2015 ◽  
Vol 38 (1) ◽  
pp. 51-61 ◽  
Author(s):  
Jung-Su Kim ◽  
◽  
Soon-Mu Kwon ◽  
Jung-Min Kim
Keyword(s):  
Dose Reduction ◽  
Reduction Technique ◽  
Basic Principles ◽  
Ct Dose ◽  
Ct Dose Index ◽  
Dose Index

A Comprehensive CT Dose Reduction Program Using the ACR Dose Index Registry

2015 ◽  
Vol 12 (12) ◽  
pp. 1257-1265 ◽  
Author(s):  
Brent P. Little ◽  
Phuong-Anh Duong ◽  
Jessie Knighton ◽  
Kristen Baugnon ◽  
Erica Campbell-Brown ◽  
...  
Keyword(s):  
Dose Reduction ◽  
Ct Dose ◽  
Reduction Program ◽  
Acr Dose Index Registry ◽  
Dose Index

scholarly journals New Concept and Procedure for Helical CT Dose Index

1997 ◽  
Vol 53 (11) ◽  
pp. 1657-1664
Author(s):  
YOSHIHISA MURAMATSU ◽  
KOUZOU HANAI ◽  
SYOUICHI KATSUTA ◽  
YASUYUKI FUJITA
Keyword(s):  
Helical Ct ◽  
Ct Dose ◽  
Ct Dose Index ◽  
Dose Index

scholarly journals Reducing dose of Cone-Beam CT used for patient positioning in radiooncology

2021 ◽  
Vol 7 (2) ◽  
pp. 227-230
Author(s):  
Verena Gorges ◽  
Waldemar Zylka
Keyword(s):  
Dose Reduction ◽  
Cone Beam Ct ◽  
Patient Positioning ◽  
Cone Beam ◽  
Thoracic Region ◽  
Analysis Software ◽  
Tumor Patients ◽  
Ct Dose ◽  
Full Rotation ◽  
Ct Dose Index

Abstract Cone-Beam computed tomography (CBCT) has become the most important component of modern radiotherapy for positioning tumor patients directly before treatment. In this work we investigate alternations to standard acquisition protocol, called preset, for patients with a tumor in the thoracic region. The effects of the changed acquisition parameters on the image quality are evaluated using the Catphan Phantom and the image analysis software Smári. The weighted CT dose index (CTDIW) is determined in each case and the effects of the different acquisition protocols on the patient dose are classified accordingly. Additionally, the clinical suitability of alternative presets is tested by investigating correctness of image registration using the CIRS thorax phantom. The results show that a significant dose reduction can be achieved. It can be reduced by 51% for a full rotation by adjusting the gantry speed. A more patientspecific uptake protocol for patients with laterally located tumor was created which allows a dose reduction of 54%.

SU-E-I-50: The ACR CT Dose Index Registry: Implementation Challenges and Preliminary Data

2012 ◽  
Vol 39 (6Part4) ◽  
pp. 3636-3636
Author(s):  
K Kanal ◽  
D Zamora ◽  
C Price ◽  
J Robinson ◽  
W Shuman
Keyword(s):  
Preliminary Data ◽  
Implementation Challenges ◽  
Ct Dose ◽  
Ct Dose Index ◽  
Dose Index

TH-EF-BRA-08: Extending the Concept of Weighted CT Dose Index to Elliptical Phantoms of Various Aspect Ratios

2015 ◽  
Vol 42 (6Part44) ◽  
pp. 3746-3746
Author(s):  
A Markovich ◽  
A Morgan ◽  
F Dong ◽  
A Primak ◽  
X Li
Keyword(s):  
Ct Dose ◽  
Aspect Ratios ◽  
Ct Dose Index ◽  
Dose Index
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