A Simulation Study of a Radiofrequency Localization System for Tracking Patient Motion in Radiotherapy
One of the most widely used tools in cancer treatment is external beam radiotherapy. However, the major risk involved in radiotherapy is excess radiation dose to healthy tissue, exacerbated by patient motion. Here, we present a simulation study of a potential radiofrequency (RF) localization system...
| Main Authors: | , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2016-04-01
|
| Series: | Sensors |
| Subjects: | |
| Online Access: | http://www.mdpi.com/1424-8220/16/4/534 |
| _version_ | 1811307535804661760 |
|---|---|
| author | Mark Ostyn Siyong Kim Woon-Hong Yeo |
| author_facet | Mark Ostyn Siyong Kim Woon-Hong Yeo |
| author_sort | Mark Ostyn |
| collection | DOAJ |
| description | One of the most widely used tools in cancer treatment is external beam radiotherapy. However, the major risk involved in radiotherapy is excess radiation dose to healthy tissue, exacerbated by patient motion. Here, we present a simulation study of a potential radiofrequency (RF) localization system designed to track intrafraction motion (target motion during the radiation treatment). This system includes skin-wearable RF beacons and an external tracking system. We develop an analytical model for direction of arrival measurement with radio frequencies (GHz range) for use in a localization estimate. We use a Monte Carlo simulation to investigate the relationship between a localization estimate and angular resolution of sensors (signal receivers) in a simulated room. The results indicate that the external sensor needs an angular resolution of about 0.03 degrees to achieve millimeter-level localization accuracy in a treatment room. This fundamental study of a novel RF localization system offers the groundwork to design a radiotherapy-compatible patient positioning system for active motion compensation. |
| first_indexed | 2024-04-13T09:06:02Z |
| format | Article |
| id | doaj.art-dd2ae33aed564430828e65a8100a22f5 |
| institution | Directory Open Access Journal |
| issn | 1424-8220 |
| language | English |
| last_indexed | 2024-04-13T09:06:02Z |
| publishDate | 2016-04-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Sensors |
| spelling | doaj.art-dd2ae33aed564430828e65a8100a22f52022-12-22T02:52:59ZengMDPI AGSensors1424-82202016-04-0116453410.3390/s16040534s16040534A Simulation Study of a Radiofrequency Localization System for Tracking Patient Motion in RadiotherapyMark Ostyn0Siyong Kim1Woon-Hong Yeo2Radiation Oncology, Medical Physics Graduate Program, School of Medicine, Virginia Commonwealth University, Richmond, VA 23298, USARadiation Oncology, Medical Physics Graduate Program, School of Medicine, Virginia Commonwealth University, Richmond, VA 23298, USADepartment of Mechanical and Nuclear Engineering, School of Engineering, Virginia Commonwealth University, Richmond, VA 23284, USAOne of the most widely used tools in cancer treatment is external beam radiotherapy. However, the major risk involved in radiotherapy is excess radiation dose to healthy tissue, exacerbated by patient motion. Here, we present a simulation study of a potential radiofrequency (RF) localization system designed to track intrafraction motion (target motion during the radiation treatment). This system includes skin-wearable RF beacons and an external tracking system. We develop an analytical model for direction of arrival measurement with radio frequencies (GHz range) for use in a localization estimate. We use a Monte Carlo simulation to investigate the relationship between a localization estimate and angular resolution of sensors (signal receivers) in a simulated room. The results indicate that the external sensor needs an angular resolution of about 0.03 degrees to achieve millimeter-level localization accuracy in a treatment room. This fundamental study of a novel RF localization system offers the groundwork to design a radiotherapy-compatible patient positioning system for active motion compensation.http://www.mdpi.com/1424-8220/16/4/534radiotherapylocalizationdirection of arrivalangulationMonte Carlo simulationintrafraction motion |
| spellingShingle | Mark Ostyn Siyong Kim Woon-Hong Yeo A Simulation Study of a Radiofrequency Localization System for Tracking Patient Motion in Radiotherapy Sensors radiotherapy localization direction of arrival angulation Monte Carlo simulation intrafraction motion |
| title | A Simulation Study of a Radiofrequency Localization System for Tracking Patient Motion in Radiotherapy |
| title_full | A Simulation Study of a Radiofrequency Localization System for Tracking Patient Motion in Radiotherapy |
| title_fullStr | A Simulation Study of a Radiofrequency Localization System for Tracking Patient Motion in Radiotherapy |
| title_full_unstemmed | A Simulation Study of a Radiofrequency Localization System for Tracking Patient Motion in Radiotherapy |
| title_short | A Simulation Study of a Radiofrequency Localization System for Tracking Patient Motion in Radiotherapy |
| title_sort | simulation study of a radiofrequency localization system for tracking patient motion in radiotherapy |
| topic | radiotherapy localization direction of arrival angulation Monte Carlo simulation intrafraction motion |
| url | http://www.mdpi.com/1424-8220/16/4/534 |
| work_keys_str_mv | AT markostyn asimulationstudyofaradiofrequencylocalizationsystemfortrackingpatientmotioninradiotherapy AT siyongkim asimulationstudyofaradiofrequencylocalizationsystemfortrackingpatientmotioninradiotherapy AT woonhongyeo asimulationstudyofaradiofrequencylocalizationsystemfortrackingpatientmotioninradiotherapy AT markostyn simulationstudyofaradiofrequencylocalizationsystemfortrackingpatientmotioninradiotherapy AT siyongkim simulationstudyofaradiofrequencylocalizationsystemfortrackingpatientmotioninradiotherapy AT woonhongyeo simulationstudyofaradiofrequencylocalizationsystemfortrackingpatientmotioninradiotherapy |