ESTRO meets Asia 2024 - Abstract Book

S343

Physics – Quality assurance and auditing

ESTRO meets Asia 2024

TG-1 initiated its inaugural activity in October 2017, with participation expanding from 9 to 55 facilities nationwide by February 2024. TG-2 began its efforts in 2021, attracting 49 participating facilities globally. TG-4 is poised to launch its formal audits in 2024, following successful pilot studies within the Hiroshima region. Notably, TG-2 and TG-4 have transitioned to an advanced cloud server developed by RTSWG for data management and DICOM image analysis, facilitating automatic generation of preliminary audit reports. Facilities that are found to be non compliant as a result of the audit are interviewed and, if necessary, visited for improvement. Looking ahead, the RTSWG aims to introduce cross-calibration services for ionization chambers, utilizing secondary standards directly calibrated by Japan's National Institute of Advanced Industrial Science and Technology (AIST). Additionally, bespoke on-site support, grounded in precise measurements, will be offered to further enhance QA processes.

Conclusion:

The RTSWG's commitment to rigorous and impartial QA audits has been gradually solidified its reputation within Japan's radiotherapy community. With an ever-growing roster of participating facilities, the group is poised to continue its vital role in ensuring the high standards of radiotherapy physics QA for years to come.

Keywords: Physics QA, Third party evaluation,

References:

[1] Nakao M, Ozawa S, Miura H, Yamada K, Hayata M, Hayashi K, et al. CT number calibration audit in photon radiation therapy. Medical Physics 2023:mp.16887. https://doi.org/10.1002/mp.16887.

[2] Hayashi K, Miura H, Ozawa S, Habara K, Kawakubo A, Nakao M, et al. Development of a Phantom and Analysis Program for Assessment of Positional Accuracy of Image-guided Radiation Therapy. Nippon Hoshasen Gijutsu Gakkai Zasshi 2024;80:207–15. https://doi.org/10.6009/jjrt.2024-1389.

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Digital Poster

Acceptance & Commissioning tests of Shinva XHA600E Digital platform Linac with VMAT

JAGADISH R 1 , Narsi Lingampalli 1 , Rashmi Puranik 1 , Dr. Darshana Kawale 1 , Dr. Anjali Uniyal 1 , Sathiya Narayanan 2 , Raghavendra Holla 2 , Boopalan Balaji 3 , Dr. Bhooshan Zade 1 , Dr. Sanjay Deshmukh 1 1 Department of Radiation Oncology, Indrayani Hospital & Cancer Institute, Pune, India. 2 Department of Radiation Oncology, Rubhy hall clinic, Pune, India. 3 Department of Radiation Oncology, KLES Belgaum Cancer Hospital, Belgaum, India

Purpose/Objective:

The aim is to present results of acceptance & commissioning tests of the India’s first Shinva XHA600E LINAC manufactured by M/S. Shinva Medical Instrument Co. Ltd., China which was installed by M/s. KTPL, Mumbai at Indrayani Hospital & Cancer Institute, Pune. Before we use the machine for clinical treatment, we performed