Investigation of the Effect of Calibration Curves Obtained from Different Computed Tomography Devices on the Dose Distribution of Tomotherapy Plans
Purpose: This study investigated the effect of Hounsfield units (HU)-relative electron density (RED) calibration curves obtained with devices from three different Computed Tomography (CT) manufacturers on dose distribution in Accuray Precision planning of patients with lung cancer. Methods: All CT d...
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| Format: | Article |
| Language: | English |
| Published: |
Wolters Kluwer Medknow Publications
2024-12-01
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| Series: | Journal of Medical Physics |
| Subjects: | |
| Online Access: | https://journals.lww.com/10.4103/jmp.jmp_129_24 |
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| _version_ | 1841556616130854912 |
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| author | Hikmettin Demir Osman Vefa Gül Gül Kanyilmaz |
| author_facet | Hikmettin Demir Osman Vefa Gül Gül Kanyilmaz |
| author_sort | Hikmettin Demir |
| collection | DOAJ |
| description | Purpose:
This study investigated the effect of Hounsfield units (HU)-relative electron density (RED) calibration curves obtained with devices from three different Computed Tomography (CT) manufacturers on dose distribution in Accuray Precision planning of patients with lung cancer.
Methods:
All CT data required for treatment planning system (TPS) were obtained using the Tomotherapy “cheese” phantom. HU RED calibration curves were created with images obtained from Siemens Somatom, GE Optima, and Toshiba Aquilion devices. The obtained calibration curve was extrapolated. CT images of lung cancer patients were acquired on a single device and treatment plans were created. The existing plans were recalculated using three calibration curves and the effect of the HU RED calibration curve on dose distribution was analyzed.
Results:
The results showed that different CTs did not produce significant dose differences in organ doses and PTV for Accuray TPS.
Conclusions:
Based on clinical judgment, images from different CT devices can be used in treatment planning. |
| format | Article |
| id | doaj-art-fd5352dd4c774625a5dbdf8990b89a4e |
| institution | Kabale University |
| issn | 0971-6203 1998-3913 |
| language | English |
| publishDate | 2024-12-01 |
| publisher | Wolters Kluwer Medknow Publications |
| record_format | Article |
| series | Journal of Medical Physics |
| spelling | doaj-art-fd5352dd4c774625a5dbdf8990b89a4e2025-01-07T07:19:03ZengWolters Kluwer Medknow PublicationsJournal of Medical Physics0971-62031998-39132024-12-0149454555010.4103/jmp.jmp_129_24Investigation of the Effect of Calibration Curves Obtained from Different Computed Tomography Devices on the Dose Distribution of Tomotherapy PlansHikmettin DemirOsman Vefa GülGül KanyilmazPurpose: This study investigated the effect of Hounsfield units (HU)-relative electron density (RED) calibration curves obtained with devices from three different Computed Tomography (CT) manufacturers on dose distribution in Accuray Precision planning of patients with lung cancer. Methods: All CT data required for treatment planning system (TPS) were obtained using the Tomotherapy “cheese” phantom. HU RED calibration curves were created with images obtained from Siemens Somatom, GE Optima, and Toshiba Aquilion devices. The obtained calibration curve was extrapolated. CT images of lung cancer patients were acquired on a single device and treatment plans were created. The existing plans were recalculated using three calibration curves and the effect of the HU RED calibration curve on dose distribution was analyzed. Results: The results showed that different CTs did not produce significant dose differences in organ doses and PTV for Accuray TPS. Conclusions: Based on clinical judgment, images from different CT devices can be used in treatment planning.https://journals.lww.com/10.4103/jmp.jmp_129_24calibration curvecomputed tomographyhounsfield unittomotherapy |
| spellingShingle | Hikmettin Demir Osman Vefa Gül Gül Kanyilmaz Investigation of the Effect of Calibration Curves Obtained from Different Computed Tomography Devices on the Dose Distribution of Tomotherapy Plans Journal of Medical Physics calibration curve computed tomography hounsfield unit tomotherapy |
| title | Investigation of the Effect of Calibration Curves Obtained from Different Computed Tomography Devices on the Dose Distribution of Tomotherapy Plans |
| title_full | Investigation of the Effect of Calibration Curves Obtained from Different Computed Tomography Devices on the Dose Distribution of Tomotherapy Plans |
| title_fullStr | Investigation of the Effect of Calibration Curves Obtained from Different Computed Tomography Devices on the Dose Distribution of Tomotherapy Plans |
| title_full_unstemmed | Investigation of the Effect of Calibration Curves Obtained from Different Computed Tomography Devices on the Dose Distribution of Tomotherapy Plans |
| title_short | Investigation of the Effect of Calibration Curves Obtained from Different Computed Tomography Devices on the Dose Distribution of Tomotherapy Plans |
| title_sort | investigation of the effect of calibration curves obtained from different computed tomography devices on the dose distribution of tomotherapy plans |
| topic | calibration curve computed tomography hounsfield unit tomotherapy |
| url | https://journals.lww.com/10.4103/jmp.jmp_129_24 |
| work_keys_str_mv | AT hikmettindemir investigationoftheeffectofcalibrationcurvesobtainedfromdifferentcomputedtomographydevicesonthedosedistributionoftomotherapyplans AT osmanvefagul investigationoftheeffectofcalibrationcurvesobtainedfromdifferentcomputedtomographydevicesonthedosedistributionoftomotherapyplans AT gulkanyilmaz investigationoftheeffectofcalibrationcurvesobtainedfromdifferentcomputedtomographydevicesonthedosedistributionoftomotherapyplans |