This survey is prepared by ESTRO Focus Group on Dosimetry and QA. Plan/patient specific QA (PSQA) is an important part of modern radiotherapy practice. As treatment plans become more complex many centres spend considerable amount of resources (machine time, personnel, and equipment) to address it. Since PSQA might include many aspects, we would like to specify that in this survey PSQA means verifying the TPS dose calculation and/or plan deliverability / machine delivery accuracy for that specific plan, whether by measurements, secondary calculations, or other means for routine practice (commissioning of technique is considered separately in Q8). The survey is aimed at medical physicists involved in plan/patient specific QA. We expect to receive one answer per department on the actual practice. The aim of the survey is to gather information on the current practice of plan/patient specific QA for 3D-CRT, IMRT/VMAT, SBRT, SRS, ART photon EBRT treatments in Europe. The survey results will be used in aggregated and anonymised way to help ESTRO better understand the current practice, the guidance needs and the results of the survey in anonymous form will be made available.
The survey should not take more than 15 min to answer. Please respond by Friday 10 October 2025.
In case of further questions regarding the survey please contact focusgroups@estro.org

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* 1. Country:

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* 2. Institute:

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* 3. Number of patients treated annually with EBRT:

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* 4. Contact e-mail:

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* 5. Role:

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* 6. What therapy machines do you have in your department and how many? Select all that are applicable and indicate number of machines.

  Number
C-arm linac
O-ring linac
Tomotherapy
Cyberknife
Zap-X
Gammaknife
MR-linac
Other

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* 7. What RT techniques do you apply? List % of patient treated by each technique. (0-not applied, use ranges 1-10%, etc. for those that are applied)

 
3D-CRT
IMRT/VMAT
SBRT
SRS
Online ART

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* 8. When introducing/commissioning a new treatment technique, for how many plans/cases BEFORE the clinical introduction would you perform PSQA?

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* 9. Do you perform measurement based PSQA for every new plan?

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* 10. If you implement online adaptive RT strategies, do you perform plan QA for each adaptation of the treatment plan? Specify type of PSQA

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* 11. If you implement offline adaptive RT strategies, do you perform plan QA for each adaptation of the treatment plan? Specify type of PSQA

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* 12. What plan/patient specific QA you perform?
Indicate % of patient for whom you perform QA, use N/A if you do not perform technique.

  3D-CRT IMRT/VMAT SBRT SRS/SRT Online ART
Plan check and plan parameter review by MPE
Independent calculation method of planned dose/MU
Pre-treatment, measurement-based verification of planned dose at a point
Pre-treatment, measurement-based verification of planned 2D fluence/dose (with 2D-array,3D dose reconstruction from 2D measurement)
Pre-treatment, measurement-based verification of planned 2D fluence/dose (film dosimetry)
Pre-treatment, measurement-based verification of planned 2D fluence/dose (EPID dosimetry)
Pre-treatment, measurement-based verification of planned 2D fluence/dose (transmission detectors, except EPID)
Verification of planned dose using log-file data acquired during treatment
Verification of delivered dose to the patient with point dose in-vivo dosimetry
Verification of delivered dose to the patient with in-vivo transit dosimetry (2D)
Verification of delivered dose to the patient with in-vivo transit dosimetry (3D)

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* 13. Are any of the checks done automatically (using scripts or automated routine)? If yes, please mention which type of PSQA is done automatically.

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* 14. If you do not perform measurement-based QA for all patients, how do you choose when to perform measurement based PSQA? (select more than one answer if applicable)

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* 15. Have you considered any class solution/plan complexity analyses, etc. to reduce measurement based QA?

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* 16. If the primary method of PSQA fails what is your strategy? (Use arrows to position the answers in order of priority)

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* 17. If you perform a measurement based QA for all plans, has your department considered to move to measurementless QA?

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* 18. What is hampering the reduction of measurement based PSQA?
(selecting N/A will remove the answer from consideration) + (Use arrows to position the answers in order of priority)

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* 19. Please list any comments you have for Q16 and Q18 or if you use any other PSQA approaches

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