SU-E-T-236: Evaluation of Electronic Portal Imaging Device in the Quality Assurance of Volumetric Modulated Arc Therapy

2011 ◽  
Vol 38 (6Part14) ◽  
pp. 3541-3541
Author(s):  
Z Liu ◽  
P Chan ◽  
S Li ◽  
B Micaily ◽  
C Miyamoto
Keyword(s):  
Quality Assurance ◽  
Volumetric Modulated Arc Therapy ◽  
Electronic Portal Imaging Device ◽  
Imaging Device ◽  
Portal Imaging ◽  
Electronic Portal Imaging ◽  
Arc Therapy

TH-C-T-6E-09: Multi-Leaf-Collimator Quality Assurance Using the Electronic Portal Imaging Device

2005 ◽  
Vol 32 (6Part21) ◽  
pp. 2168-2169
Author(s):  
I Ali ◽  
S Benedict ◽  
w li ◽  
F Lerma ◽  
N Dogan ◽  
...  
Keyword(s):  
Quality Assurance ◽  
Electronic Portal Imaging Device ◽  
Imaging Device ◽  
Portal Imaging ◽  
Electronic Portal Imaging ◽  
Multi Leaf Collimator

RapidArc treatment planning quality assurance using electronic portal imaging device for cervical cancer

2019 ◽  
Vol 19 (2) ◽  
pp. 139-144
Author(s):  
Hafiz Muhibb ullah Zulkafal ◽  
Allah Ditta Khalid ◽  
Sajid Anees Minhas ◽  
Umair Zafar ◽  
Rizwan Hameed ◽  
...  
Keyword(s):  
Cervical Cancer ◽  
Quality Assurance ◽  
Treatment Planning ◽  
Planning System ◽  
Electronic Portal Imaging Device ◽  
Imaging Device ◽  
Portal Imaging ◽  
Electronic Portal Imaging ◽  
Treatment Plans

AbstractPurpose:The main objective of this study is to assure the quality of cervical cancer treatment plans using an electronic portal imaging device (EPID) in RapidArc techniques.Materials and Methods:Fifteen cases of cervical cancer patients undergoing RapidArc technique were selected to evaluate the quality assurance (QA) of their treatment. The computed tomography (CT) of each patient was obtained with 3-mm-slice thickness and transferred to the Eclipse treatment planning system. The prescribed dose (PD) of 50·4 Gy with 1·8 Gy per fraction to planning target volume (PTV) was used for each patient. The aim of treatment planning was to achieve 95% of PD to cover 97%, and dose to the PTV should not receive 105% of the PD. All RapidArc plans were created using the AAA algorithm and treated on Varian DHX using 6 MV photon beam, with two full arcs. Gamma analysis was used to evaluate the quality of the treatment plans with accepting criteria of 95% at 3%/3 mm.Results:In this study, maximum and average gamma values were 2·53 ± 0·409 and 0·195 ± 0·059 showing very small deviation and indicating the smaller difference between both predicted and portal doses. Gamma Area changes from > 0·8 to > 1·2. SD increased to 5·4% and mean standard error increased to 4·67%.Conclusion:On the basis of these outcomes, we can summarise that the EPID is a useful tool for QA in standardising and evaluating RapidArc treatment plans of cervical cancer in routine clinical practice.

Sign in / Sign up

Export Citation Format

Share Document