An evaluation of isocentre shift magnitude and treatment site on image‐guided radiation therapy online decision analysis times
Abstract Introduction The ability to capture more anatomical detail in cone‐beam computed tomography (CBCT) imaging compared to kilovoltage (kV) and megavoltage (MV) imaging, has seen a documented shift towards CBCT image verification and staff adopting more extensive image analysis processes. The t...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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Wiley
2023-09-01
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| Series: | Journal of Medical Radiation Sciences |
| Subjects: | |
| Online Access: | https://doi.org/10.1002/jmrs.671 |
| _version_ | 1797686847996952576 |
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| author | Sarah Clark Natalie Pollard Elizabeth Brown |
| author_facet | Sarah Clark Natalie Pollard Elizabeth Brown |
| author_sort | Sarah Clark |
| collection | DOAJ |
| description | Abstract Introduction The ability to capture more anatomical detail in cone‐beam computed tomography (CBCT) imaging compared to kilovoltage (kV) and megavoltage (MV) imaging, has seen a documented shift towards CBCT image verification and staff adopting more extensive image analysis processes. The timeframe associated with assessing online CBCT images, termed the online decision analysis time, if drawn out, can affect treatment efficiency and accuracy. This study aimed to determine the current CBCT online decision analysis time at Radiation Oncology Princess Alexandra Ipswich Road (ROPAIR) and investigate the influence of isocentre shift magnitude and treatment site considerations on this timeframe. Methods This retrospective clinical audit collected treatment parameters from 202 CBCT images over 2 treatment days. The online decision analysis time was calculated by subtracting the image acquisition timestamp from the image verification shift application timestamp. The quantitative data were analysed using mean, standard deviation, and range in the following categories: all CBCTs, CBCTs grouped by isocentre shift magnitude and CBCTs grouped by treatment site. Content analysis was performed on staff comments made during image analysis. Results The average online decision analysis time was 2:37 ± 1:28 min. On average approximately, head and neck, spine and extremity treatment sites measured 1 min, pelvis, breast, and chest measured 2–3 min with abdomen measuring 4 min. Common categories reported in staff comments included anatomical changes, repositioning, and organs at risk size. Conclusion The results provide baseline online decision analysis times. Further refinement is required to determine if the image match method, treatment site considerations, and rotational discrepancies influence this timeframe. |
| first_indexed | 2024-03-12T01:11:37Z |
| format | Article |
| id | doaj.art-34e728cffef14467a981d37cb8c4af74 |
| institution | Directory Open Access Journal |
| issn | 2051-3895 2051-3909 |
| language | English |
| last_indexed | 2024-03-12T01:11:37Z |
| publishDate | 2023-09-01 |
| publisher | Wiley |
| record_format | Article |
| series | Journal of Medical Radiation Sciences |
| spelling | doaj.art-34e728cffef14467a981d37cb8c4af742023-09-14T04:47:21ZengWileyJournal of Medical Radiation Sciences2051-38952051-39092023-09-0170330130910.1002/jmrs.671An evaluation of isocentre shift magnitude and treatment site on image‐guided radiation therapy online decision analysis timesSarah Clark0Natalie Pollard1Elizabeth Brown2Faculty of Health Queensland University of Technology Brisbane Queensland AustraliaFaculty of Health Queensland University of Technology Brisbane Queensland AustraliaFaculty of Health Queensland University of Technology Brisbane Queensland AustraliaAbstract Introduction The ability to capture more anatomical detail in cone‐beam computed tomography (CBCT) imaging compared to kilovoltage (kV) and megavoltage (MV) imaging, has seen a documented shift towards CBCT image verification and staff adopting more extensive image analysis processes. The timeframe associated with assessing online CBCT images, termed the online decision analysis time, if drawn out, can affect treatment efficiency and accuracy. This study aimed to determine the current CBCT online decision analysis time at Radiation Oncology Princess Alexandra Ipswich Road (ROPAIR) and investigate the influence of isocentre shift magnitude and treatment site considerations on this timeframe. Methods This retrospective clinical audit collected treatment parameters from 202 CBCT images over 2 treatment days. The online decision analysis time was calculated by subtracting the image acquisition timestamp from the image verification shift application timestamp. The quantitative data were analysed using mean, standard deviation, and range in the following categories: all CBCTs, CBCTs grouped by isocentre shift magnitude and CBCTs grouped by treatment site. Content analysis was performed on staff comments made during image analysis. Results The average online decision analysis time was 2:37 ± 1:28 min. On average approximately, head and neck, spine and extremity treatment sites measured 1 min, pelvis, breast, and chest measured 2–3 min with abdomen measuring 4 min. Common categories reported in staff comments included anatomical changes, repositioning, and organs at risk size. Conclusion The results provide baseline online decision analysis times. Further refinement is required to determine if the image match method, treatment site considerations, and rotational discrepancies influence this timeframe.https://doi.org/10.1002/jmrs.671Cone‐beam CTimage analysisimage match timeonline decision analysis time |
| spellingShingle | Sarah Clark Natalie Pollard Elizabeth Brown An evaluation of isocentre shift magnitude and treatment site on image‐guided radiation therapy online decision analysis times Journal of Medical Radiation Sciences Cone‐beam CT image analysis image match time online decision analysis time |
| title | An evaluation of isocentre shift magnitude and treatment site on image‐guided radiation therapy online decision analysis times |
| title_full | An evaluation of isocentre shift magnitude and treatment site on image‐guided radiation therapy online decision analysis times |
| title_fullStr | An evaluation of isocentre shift magnitude and treatment site on image‐guided radiation therapy online decision analysis times |
| title_full_unstemmed | An evaluation of isocentre shift magnitude and treatment site on image‐guided radiation therapy online decision analysis times |
| title_short | An evaluation of isocentre shift magnitude and treatment site on image‐guided radiation therapy online decision analysis times |
| title_sort | evaluation of isocentre shift magnitude and treatment site on image guided radiation therapy online decision analysis times |
| topic | Cone‐beam CT image analysis image match time online decision analysis time |
| url | https://doi.org/10.1002/jmrs.671 |
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