SU-E-T-659: Quantitative Evaluation of Patient Setup Accuracy of Stereotactic Radiotherapy with the Frameless 6D-ExacTrac System Using Statistical Modeling

2015 ◽  
Vol 42 (6Part22) ◽  
pp. 3488-3488
Author(s):  
V Keeling ◽  
H Jin ◽  
S Hossain ◽  
O Algan ◽  
S Ahmad ◽  
...  
Keyword(s):  
Statistical Modeling ◽  
Quantitative Evaluation ◽  
Stereotactic Radiotherapy ◽  
Setup Accuracy ◽  
Patient Setup

scholarly journals Evaluation of the setup accuracy of a stereotactic radiotherapy head immobilization mask system using kV on-board imaging

2010 ◽  
Vol 11 (3) ◽  
pp. 26-37 ◽  
Author(s):  
Imad Ali ◽  
Jesse Tubbs ◽  
Kerry Hibbitts ◽  
Ozer Algan ◽  
Spencer Thompson ◽  
...  
Keyword(s):  
Stereotactic Radiotherapy ◽  
Setup Accuracy

scholarly journals Radiotherapy in oncological emergencies: fast-track treatment planning

2020 ◽  
Vol 15 (1) ◽  
Author(s):  
Lukas Nierer ◽  
Franziska Walter ◽  
Maximilian Niyazi ◽  
Roel Shpani ◽  
Guillaume Landry ◽  
...  
Keyword(s):  
Treatment Planning ◽  
Fast Track ◽  
Cone Beam Ct ◽  
Dose Calculation ◽  
Hounsfield Unit ◽  
Working Hours ◽  
Time Saving ◽  
Setup Accuracy ◽  
Patient Setup ◽  
Diagnostic Ct

Abstract Background and purpose To report on our clinical experience with a newly implemented workflow for radiotherapy (RT) emergency treatments, which allows for a fast treatment application outside the regular working-hours, and its clinical applicability. Methods Treatment planning of 18 emergency RT patients was carried out using diagnostic computed tomography (CT) without a dedicated RT simulation CT. The cone-beam CT (CBCT) deviations of the first RT treatment were analyzed regarding setup accuracy. Furthermore, feasibility of the “fast-track” workflow was evaluated with respect to dose deviations caused by different Hounsfield unit (HU) to relative electron density (rED) calibrations and RT treatment couch surface shapes via 3D gamma index analysis of exemplary treatment plans. The dosimetric uncertainty introduced by different CT calibrations was quantified. Results Mean patient setup vs. CBCT isocenter deviations were (0.49 ± 0.44) cm (x), (2.68 ± 1.63) cm (y) and (1.80 ± 1.06) cm (z) for lateral, longitudinal and vertical directions, respectively. Three out of four dose comparisons between the emergency RT plan calculated on the diagnostic CT and the same plan calculated on the treatment planning CT showed clinically acceptable gamma passing rates, when correcting for surface artifacts. The maximum difference of rED was 0.054, while most parts of the CT calibration curves coincided well. Conclusion In an emergency RT setting, the use of diagnostic CT data for treatment planning might be time-saving and was shown to be suitable for many cases, considering reproducibility of patient setup, accuracy of initial patient setup and accuracy of dose-calculation.

SU-GG-J-88: Evaluation of Patient Setup Accuracy for Targeted Marrow Irradiation with Image-Guided Helical Tomotherapy

2008 ◽  
Vol 35 (6Part6) ◽  
pp. 2699-2699
Author(s):  
C Han ◽  
A Liu ◽  
T Schultheiss ◽  
J Wong
Keyword(s):  
Helical Tomotherapy ◽  
Image Guided ◽  
Setup Accuracy ◽  
Patient Setup

3D optoelectronic analysis of interfractional patient setup variability in frameless extracranial stereotactic radiotherapy

2006 ◽  
Vol 64 (2) ◽  
pp. 635-642 ◽  
Author(s):  
Guido Baroni ◽  
Cristina Garibaldi ◽  
Marco Riboldi ◽  
Maria F. Spadea ◽  
Gianpiero Catalano ◽  
...  
Keyword(s):  
Stereotactic Radiotherapy ◽  
Patient Setup ◽  
Extracranial Stereotactic Radiotherapy

SU-FF-T-550: Evaluation of Setup Accuracy of a Stereotactic Radiotherapy Head Immobilization Mask Using KV On-Board Imaging

2009 ◽  
Vol 36 (6Part17) ◽  
pp. 2651-2651
Author(s):  
I Ali ◽  
Jesse Tubbs ◽  
Kerry Hibbitts ◽  
Teresa Langley ◽  
Ozer Algan ◽  
...  
Keyword(s):  
Stereotactic Radiotherapy ◽  
Setup Accuracy
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