Dose Calculation Accuracy of Beam Models in RadCalc for a 1.5 T MR-Linac
The purpose of this study is to evaluate RadCalc, an independent dose verification software, for patient-specific quality assurance (PSQA) in online adaptive planning with a magnetic resonance linear accelerator (MR-linac) of a 1.5 T. Version 7.1.4 of RadCalc to introduce the capability to establish...
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2024-01-01
|
| Series: | Cancers |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2072-6694/16/3/526 |
| _version_ | 1797319023733506048 |
|---|---|
| author | Jiwon Sung Yeonho Choi Jun Won Kim Ho Lee |
| author_facet | Jiwon Sung Yeonho Choi Jun Won Kim Ho Lee |
| author_sort | Jiwon Sung |
| collection | DOAJ |
| description | The purpose of this study is to evaluate RadCalc, an independent dose verification software, for patient-specific quality assurance (PSQA) in online adaptive planning with a magnetic resonance linear accelerator (MR-linac) of a 1.5 T. Version 7.1.4 of RadCalc to introduce the capability to establish a beam model that incorporates MR field characteristics. A total of six models were established, with one using manufacturer-provided data and the others differing in percentage depth dose (PDD) data sources. Overall, two models utilized PDD data from the treatment planning system (TPS), and three used commissioned PDD data from gantry angles of 0° and 270°. Simple tests on a virtual water phantom assessed dose-calculation accuracy, revealing percentage differences ranging from −0.5% to −20.6%. Excluding models with significant differences, clinical tests on 575 adaptive plans (prostate, liver, and breast) showed percentage differences of −0.51%, 1.12%, and 4.10%, respectively. The doses calculated using RadCalc demonstrated similar trends to those of the PSQA-based measurements. The newly released version of RadCalc enables beam modeling that considers the characteristics of the 1.5 T magnetic field. The accuracy of the software in calculating doses at 1.5 T magnetic fields has been verified, thereby making it a reliable and effective tool for PSQA in adaptive plans. |
| first_indexed | 2024-03-08T03:59:55Z |
| format | Article |
| id | doaj.art-b5439ae9920d4d749f8e24fcb0b97a25 |
| institution | Directory Open Access Journal |
| issn | 2072-6694 |
| language | English |
| last_indexed | 2024-03-08T03:59:55Z |
| publishDate | 2024-01-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Cancers |
| spelling | doaj.art-b5439ae9920d4d749f8e24fcb0b97a252024-02-09T15:08:52ZengMDPI AGCancers2072-66942024-01-0116352610.3390/cancers16030526Dose Calculation Accuracy of Beam Models in RadCalc for a 1.5 T MR-LinacJiwon Sung0Yeonho Choi1Jun Won Kim2Ho Lee3Department of Radiation Oncology, Gangnam Severance Hospital, Yonsei University College of Medicine, Seoul 06273, Republic of KoreaDepartment of Radiation Oncology, Gangnam Severance Hospital, Yonsei University College of Medicine, Seoul 06273, Republic of KoreaDepartment of Radiation Oncology, Gangnam Severance Hospital, Yonsei University College of Medicine, Seoul 06273, Republic of KoreaDepartment of Radiation Oncology, Yonsei Cancer Center, Heavy Ion Therapy Research Institute, Yonsei University College of Medicine, Seoul 03722, Republic of KoreaThe purpose of this study is to evaluate RadCalc, an independent dose verification software, for patient-specific quality assurance (PSQA) in online adaptive planning with a magnetic resonance linear accelerator (MR-linac) of a 1.5 T. Version 7.1.4 of RadCalc to introduce the capability to establish a beam model that incorporates MR field characteristics. A total of six models were established, with one using manufacturer-provided data and the others differing in percentage depth dose (PDD) data sources. Overall, two models utilized PDD data from the treatment planning system (TPS), and three used commissioned PDD data from gantry angles of 0° and 270°. Simple tests on a virtual water phantom assessed dose-calculation accuracy, revealing percentage differences ranging from −0.5% to −20.6%. Excluding models with significant differences, clinical tests on 575 adaptive plans (prostate, liver, and breast) showed percentage differences of −0.51%, 1.12%, and 4.10%, respectively. The doses calculated using RadCalc demonstrated similar trends to those of the PSQA-based measurements. The newly released version of RadCalc enables beam modeling that considers the characteristics of the 1.5 T magnetic field. The accuracy of the software in calculating doses at 1.5 T magnetic fields has been verified, thereby making it a reliable and effective tool for PSQA in adaptive plans.https://www.mdpi.com/2072-6694/16/3/526MR-linacpatient-specific quality assuranceonline adaptive planningindependent dose verification softwarebeam model |
| spellingShingle | Jiwon Sung Yeonho Choi Jun Won Kim Ho Lee Dose Calculation Accuracy of Beam Models in RadCalc for a 1.5 T MR-Linac Cancers MR-linac patient-specific quality assurance online adaptive planning independent dose verification software beam model |
| title | Dose Calculation Accuracy of Beam Models in RadCalc for a 1.5 T MR-Linac |
| title_full | Dose Calculation Accuracy of Beam Models in RadCalc for a 1.5 T MR-Linac |
| title_fullStr | Dose Calculation Accuracy of Beam Models in RadCalc for a 1.5 T MR-Linac |
| title_full_unstemmed | Dose Calculation Accuracy of Beam Models in RadCalc for a 1.5 T MR-Linac |
| title_short | Dose Calculation Accuracy of Beam Models in RadCalc for a 1.5 T MR-Linac |
| title_sort | dose calculation accuracy of beam models in radcalc for a 1 5 t mr linac |
| topic | MR-linac patient-specific quality assurance online adaptive planning independent dose verification software beam model |
| url | https://www.mdpi.com/2072-6694/16/3/526 |
| work_keys_str_mv | AT jiwonsung dosecalculationaccuracyofbeammodelsinradcalcfora15tmrlinac AT yeonhochoi dosecalculationaccuracyofbeammodelsinradcalcfora15tmrlinac AT junwonkim dosecalculationaccuracyofbeammodelsinradcalcfora15tmrlinac AT holee dosecalculationaccuracyofbeammodelsinradcalcfora15tmrlinac |