First clinical experience with cone-beam CT guided radiation therapy; evaluation of dose and geometric accuracy

2004 ◽  
Vol 60 (1) ◽  
pp. S196 ◽  
Author(s):  
M. van Herk ◽  
D. Jaffray ◽  
A. Betgen ◽  
P. Remeijer ◽  
J. Sonke ◽  
...  
Keyword(s):  
Radiation Therapy ◽  
Clinical Experience ◽  
Cone Beam Ct ◽  
Cone Beam ◽  
Geometric Accuracy ◽  
Ct Guided ◽  
Therapy Evaluation

SU-FF-T-66: A Technique for Cone-Beam CT-Guided Stereotactic Body Radiation Therapy

2006 ◽  
Vol 33 (6Part7) ◽  
pp. 2063-2063 ◽  
Author(s):  
F Yin ◽  
L Marks ◽  
Z Wang ◽  
J Kirkpatrick ◽  
J Wu ◽  
...  
Keyword(s):  
Radiation Therapy ◽  
Stereotactic Body Radiation Therapy ◽  
Cone Beam Ct ◽  
Cone Beam ◽  
Ct Guided ◽  
Stereotactic Body Radiation

Cone-beam-CT guided radiation therapy: technical implementation

2005 ◽  
Vol 75 (3) ◽  
pp. 279-286 ◽  
Author(s):  
Daniel Létourneau ◽  
John W. Wong ◽  
Mark Oldham ◽  
Misbah Gulam ◽  
Lindsay Watt ◽  
...  
Keyword(s):  
Radiation Therapy ◽  
Cone Beam Ct ◽  
Cone Beam ◽  
Ct Guided

Cone-beam-CT guided radiation therapy: A model for on-line application

2005 ◽  
Vol 75 (3) ◽  
pp. 271.E1-271.E8 ◽  
Author(s):  
Mark Oldham ◽  
Daniel Létourneau ◽  
Lindsay Watt ◽  
Geoffrey Hugo ◽  
Di Yan ◽  
...  
Keyword(s):  
Radiation Therapy ◽  
Cone Beam Ct ◽  
Cone Beam ◽  
Ct Guided ◽  
On Line

Post-prostatectomy image-guided radiation therapy: Evaluation of toxicity and inter-fraction variation using online cone-beam CT

2011 ◽  
Vol 55 (5) ◽  
pp. 507-515 ◽  
Author(s):  
Harriet B Eldredge ◽  
Matthew Studenski ◽  
Scott W Keith ◽  
Edouard Trabulsi ◽  
Costas D Lallas ◽  
...  
Keyword(s):  
Radiation Therapy ◽  
Cone Beam Ct ◽  
Cone Beam ◽  
Therapy Evaluation ◽  
Image Guided Radiation Therapy ◽  
Image Guided

Inter- and intrafractional localisation errors in cone-beam CT guided stereotactic radiation therapy of tumours in the liver and lung

2010 ◽  
Vol 49 (7) ◽  
pp. 1177-1183 ◽  
Author(s):  
Esben S. Worm ◽  
Anders T. Hansen ◽  
Jørgen B. Petersen ◽  
Ludvig P. Muren ◽  
Lars H. Præstegaard ◽  
...  
Keyword(s):  
Radiation Therapy ◽  
Cone Beam Ct ◽  
Cone Beam ◽  
Stereotactic Radiation Therapy ◽  
Ct Guided ◽  
Stereotactic Radiation

scholarly journals Analysis of local setup errors of sub-regions in cone-beam CT-guided post-mastectomy radiation therapy

2020 ◽  
Vol 61 (3) ◽  
pp. 457-463 ◽  
Author(s):  
Jidan Zhou ◽  
Shuai Li ◽  
Chengwei Ye ◽  
Konglong Shen ◽  
An Li ◽  
...  
Keyword(s):  
Radiation Therapy ◽  
Chest Wall ◽  
Cone Beam Ct ◽  
Target Volume ◽  
Cone Beam ◽  
Wall Region ◽  
Ct Guided ◽  
Setup Errors ◽  
Planning Ct ◽  
Anterior Posterior

ABSTRACT The purpose of the study was to quantify local setup errors and evaluate the planning target volume (PTV) margins for sub-regions in cone-beam computed tomography (CBCT)-guided post-mastectomy radiation therapy (PMRT). The local setup errors of 20 patients undergoing CBCT-guided PMRT were analysed retrospectively. Image registration between CBCT and planning CT was performed using four sub-regions of interest (ROIs): the supraclavicular area (SROI), ipsilateral chest wall region (CROI), ipsilateral chest wall plus supraclavicular region (SROI + CROI) and vertebral region (TROI). Bland–Altman analysis, correlation, local setup errors and PTV margins among these ROIs were evaluated. There was no significant consistency or correlation for registration results between the TROI and the CROI or SROI regions on any translational axis. When using the SROI + CROI as the ROI, the systematic error (Σ) and random error (σ) of the local setup errors for the CROI region were 1.81, 1.19 and 1.76 mm and 1.84, 2.64 and 3.00 mm along the medial–lateral (ML), superior–inferior (SI) and anterior–posterior (AP) directions, respectively. The PTV margins for the CROI region were 5.80, 4.82 and 6.50 mm. The Σ and σ of the local setup errors for the SROI region were 1.29, 1.15 and 0.77 mm and 1.96, 2.65 and 2.2 mm, respectively, and the PTV margins were 4.59, 4.73 and 3.47 mm. Large setup errors and local setup errors occur in PMRT. The vertebral body should not be a position surrogate for the supraclavicular region or chest wall. To compensate for the local setup errors, different PTV margins are required, even with CBCT guidance.

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