A Simulation Study on Patient Setup Errors in External Beam Radiotherapy Using an Anthropomorphic 4D Phantom

Q: How can I download an article?

To download an article from SID, first log in to the site, search for the article title, and click on the 'Download Article' option.

Q: How can I download an ISI article?

To download an ISI article on SID, enter the keyword or article title in the search bar, view the relevant results, click on the desired article, and select the 'Download Article' option.

Q: How can I access the SID database?

To access the SID database, visit SID.ir, create an account, and log in to access scientific resources.

Q: Is downloading articles from SID free?

Some articles on SID are available for free, while others require payment. Details are specified on the article's page.

Samadi Miyandoab Payam; ESMAILI TORSHABI AHMAD; Nankali Saber; REZAIE MOHAMMAD REZA

مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic Resources

Journal Paper

Paper Information

Journal: Iranian Journal of Medical Physics Year:2016 | Volume:13 | Issue:4 Page(s): 276-288

Download Full-Text

View:

199

Download:

Cites:

Information Journal Paper

Title

A Simulation Study on Patient Setup Errors in External Beam Radiotherapy Using an Anthropomorphic 4D Phantom

Author(s)

Samadi Miyandoab Payam | ESMAILI TORSHABI AHMAD | Nankali Saber | REZAIE MOHAMMAD REZA | Issue Writer Certificate

Keywords

Artificial neural network

Patient setup

Correlation model

External radiotherapy

Abstract

Introduction Patient set-up optimization is required in radiotherapy to fill the accuracy gap between personalized treatment planning and uncertainties in the irradiation set-up. In this study, we aimed to develop a new method based on neural network to estimate patient geometrical setup using 4-dimensional (4D) XCAT anthropomorphic phantom. Materials and Methods To access 4D modeling of motion of dynamic organs, a phantom employs non-uniform rational B-splines (NURBS)-based Cardiac-Torso method with spline-based model to generate 4D computed tomography (CT) images. First, to generate all the possible roto-translation positions, the 4D CT images were imported to Medical Image Data Examiner (AMIDE). Then, for automatic, real time verification of geometrical setup, an Artificial neural network (ANN) was proposed to estimate patient displacement, using training sets. Moreover, three external motion markers were synchronized with a patient couch position as reference points. In addition, the technique was validated through simulated activities by using reference 4D CT data acquired from five patients. Results The results indicated that patient geometrical set-up is highly depended on the comprehensiveness of training set. By using ANN model, the average Patient setup error in XCAT phantom was reduced from 17. 26 mm to 0. 50 mm. In addition, in the five real patients, these average errors were decreased from 18. 26 mm to 1. 48 mm various breathing phases ranging from inhalation to exhalation were taken into account for Patient setup. Uncertainty error assessment and different setup errors were obtained from each respiration phase. Conclusion This study proposed a new method for alignment of Patient setup error using ANN model. Additionally, our Correlation model (ANN) could estimate true patient position with less error.

Multimedia

No record.

Cites

No record.

References

No record.

Cite

APA: Copy

Samadi Miyandoab, Payam, ESMAILI TORSHABI, AHMAD, Nankali, Saber, & REZAIE, MOHAMMAD REZA. (2016). A Simulation Study on Patient Setup Errors in External Beam Radiotherapy Using an Anthropomorphic 4D Phantom. IRANIAN JOURNAL OF MEDICAL PHYSICS, 13(4), 276-288. SID. https://sid.ir/paper/718312/en

Vancouver: Copy

Samadi Miyandoab Payam, ESMAILI TORSHABI AHMAD, Nankali Saber, REZAIE MOHAMMAD REZA. A Simulation Study on Patient Setup Errors in External Beam Radiotherapy Using an Anthropomorphic 4D Phantom. IRANIAN JOURNAL OF MEDICAL PHYSICS[Internet]. 2016;13(4):276-288. Available from: https://sid.ir/paper/718312/en

IEEE: Copy

Payam Samadi Miyandoab, AHMAD ESMAILI TORSHABI, Saber Nankali, and MOHAMMAD REZA REZAIE, “A Simulation Study on Patient Setup Errors in External Beam Radiotherapy Using an Anthropomorphic 4D Phantom,” IRANIAN JOURNAL OF MEDICAL PHYSICS, vol. 13, no. 4, pp. 276–288, 2016, [Online]. Available: https://sid.ir/paper/718312/en

Related Journal Papers

No record.

Related Seminar Papers

No record.

Related Plans

No record.

Recommended Workshops