Prediction-Based Compensation for Gate OnOff Latency during Respiratory-Gated Radiotherapy
Joint Authors
Onishi, Hiroshi
Johno, Hisashi
Saito, Masahide
Source
Computational and Mathematical Methods in Medicine
Issue
Vol. 2018, Issue 2018 (31 Dec. 2018), pp.1-10, 10 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2018-11-27
Country of Publication
Egypt
No. of Pages
10
Main Subjects
Abstract EN
During respiratory-gated radiotherapy (RGRT), gate on and off latencies cause deviations of gating windows, possibly leading to delivery of low- and high-dose radiations to tumors and normal tissues, respectively.
Currently, there are no RGRT systems that have definite tools to compensate for the delays.
To address the problem, we propose a framework consisting of two steps: (1) multistep-ahead prediction and (2) prediction-based gating.
For each step, we have devised a specific algorithm to accomplish the task.
Numerical experiments were performed using respiratory signals of a phantom and ten volunteers, and our prediction-based RGRT system exhibited superior performance in more than a few signal samples.
In some, however, signal prediction and prediction-based gating did not work well, maybe due to signal irregularity and/or baseline drift.
The proposed approach has potential applicability in RGRT, and further studies are needed to verify and refine the constituent algorithms.
American Psychological Association (APA)
Johno, Hisashi& Saito, Masahide& Onishi, Hiroshi. 2018. Prediction-Based Compensation for Gate OnOff Latency during Respiratory-Gated Radiotherapy. Computational and Mathematical Methods in Medicine،Vol. 2018, no. 2018, pp.1-10.
https://search.emarefa.net/detail/BIM-1132069
Modern Language Association (MLA)
Johno, Hisashi…[et al.]. Prediction-Based Compensation for Gate OnOff Latency during Respiratory-Gated Radiotherapy. Computational and Mathematical Methods in Medicine No. 2018 (2018), pp.1-10.
https://search.emarefa.net/detail/BIM-1132069
American Medical Association (AMA)
Johno, Hisashi& Saito, Masahide& Onishi, Hiroshi. Prediction-Based Compensation for Gate OnOff Latency during Respiratory-Gated Radiotherapy. Computational and Mathematical Methods in Medicine. 2018. Vol. 2018, no. 2018, pp.1-10.
https://search.emarefa.net/detail/BIM-1132069
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1132069