Automated Patient Positioning Guided by Cone-Beam CT for Prostate Radiotherapy

2009 ◽  
Author(s):  
Ming Chao
Keyword(s):  
Cone Beam Ct ◽  
Patient Positioning ◽  
Cone Beam ◽  
Prostate Radiotherapy

The Use of Cone Beam CT for Treatment Verification in Prostate Radiotherapy

2011 ◽  
Vol 23 (3) ◽  
pp. S42
Author(s):  
M.K. Khaira ◽  
V.W. Huang ◽  
M. Liu ◽  
A.K. Cheung ◽  
T. Laberge ◽  
...  
Keyword(s):  
Cone Beam Ct ◽  
Cone Beam ◽  
Treatment Verification ◽  
Prostate Radiotherapy

TH-C-J-6B-05: Coordinate Transformation of KV Cone Beam CT Acquired with Prototype Flat Panel Mobile C-Arm for Patient Positioning Applications

2005 ◽  
Vol 32 (6Part21) ◽  
pp. 2159-2160 ◽  
Author(s):  
S Sorensen ◽  
M Mitschke ◽  
P Medin ◽  
N Agazaryan ◽  
S Tenn ◽  
...  
Keyword(s):  
Coordinate Transformation ◽  
Cone Beam Ct ◽  
Patient Positioning ◽  
Cone Beam ◽  
Flat Panel

Rectal motion can reduce CTV coverage and increase rectal dose during prostate radiotherapy: A daily cone-beam CT study

2009 ◽  
Vol 90 (3) ◽  
pp. 312-317 ◽  
Author(s):  
Raj Sripadam ◽  
Julie Stratford ◽  
Ann M. Henry ◽  
Andrew Jackson ◽  
Chris J. Moore ◽  
...  
Keyword(s):  
Cone Beam Ct ◽  
Cone Beam ◽  
Prostate Radiotherapy ◽  
Rectal Dose

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%.

Relevance of head motion in dental cone-beam CT scanner images depending on patient positioning

2008 ◽  
Vol 3 (3-4) ◽  
pp. 249-255 ◽  
Author(s):  
Marco Bontempi ◽  
Matteo Bettuzzi ◽  
Franco Casali ◽  
Alessandro Pasini ◽  
Alberto Rossi ◽  
...  
Keyword(s):  
Cone Beam Ct ◽  
Patient Positioning ◽  
Cone Beam ◽  
Head Motion ◽  
Ct Scanner
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