| Title |
Investigation of the mechanical performance of Siemens linacs components during arc: gantry, MLC, and electronic portal imaging device
|
|---|---|
| Published in |
Medical Devices : Evidence and Research, November 2015
|
| DOI | 10.2147/mder.s89725 |
| Pubmed ID | |
| Authors |
Pejman Rowshanfarzad, Peter Häring, Hans L Riis, Sune J Zimmermann, Martin A Ebert |
| Abstract |
In radiotherapy treatments, it is crucial to monitor the performance of linac components including gantry, collimation system, and electronic portal imaging device (EPID) during arc deliveries. In this study, a simple EPID-based measurement method is suggested in conjunction with an algorithm to investigate the stability of these systems at various gantry angles with the aim of evaluating machine-related errors in treatments. The EPID sag, gantry sag, changes in source-to-detector distance (SDD), EPID and collimator skewness, EPID tilt, and the sag in leaf bank assembly due to linac rotation were separately investigated by acquisition of 37 EPID images of a simple phantom with five ball bearings at various gantry angles. A fast and robust software package was developed for automated analysis of image data. Three Siemens linacs were investigated. The average EPID sag was within 1 mm for all tested linacs. Two machines showed >1 mm gantry sag. Changes in the SDD values were within 7.5 mm. EPID skewness and tilt values were <1° in all machines. The maximum sag in leaf bank assembly was <1 mm. The method and software developed in this study provide a simple tool for effective investigation of the behavior of Siemens linac components with gantry rotation. Such a comprehensive study has been performed for the first time on Siemens machines. |
X Demographics
The data shown below were collected from the profile of 1 X user who shared this research output. Click here to find out more about how the information was compiled.
Geographical breakdown
| Country | Count | As % |
|---|---|---|
| Unknown | 1 | 100% |
Demographic breakdown
| Type | Count | As % |
|---|---|---|
| Practitioners (doctors, other healthcare professionals) | 1 | 100% |
Mendeley readers
The data shown below were compiled from readership statistics for 13 Mendeley readers of this research output. Click here to see the associated Mendeley record.
Geographical breakdown
| Country | Count | As % |
|---|---|---|
| Unknown | 13 | 100% |
Demographic breakdown
| Readers by professional status | Count | As % |
|---|---|---|
| Researcher | 5 | 38% |
| Student > Bachelor | 2 | 15% |
| Student > Ph. D. Student | 2 | 15% |
| Professor | 1 | 8% |
| Librarian | 1 | 8% |
| Other | 2 | 15% |
| Readers by discipline | Count | As % |
|---|---|---|
| Physics and Astronomy | 6 | 46% |
| Medicine and Dentistry | 2 | 15% |
| Agricultural and Biological Sciences | 2 | 15% |
| Computer Science | 1 | 8% |
| Unknown | 2 | 15% |
Attention Score in Context
This research output has an Altmetric Attention Score of 1. This is our high-level measure of the quality and quantity of online attention that it has received. This Attention Score, as well as the ranking and number of research outputs shown below, was calculated when the research output was last mentioned on 05 November 2015.
All research outputs
#20,723,696
of 25,457,858 outputs
Outputs from Medical Devices : Evidence and Research
#235
of 314 outputs
Outputs of similar age
#216,043
of 295,018 outputs
Outputs of similar age from Medical Devices : Evidence and Research
#10
of 11 outputs
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