What does this research mean for the field?

An alternative setup using a 0.6 cc Farmer-type ionisation chamber and a cubic water-equivalent phantom is a viable and accessible method for quantifying kV CBCT radiation dose in radiotherapy, comparable to conventional cylindrical CT phantoms. Novelty: ClaimNovelty.METHODOLOGICAL. Consensus alignment: ConsensusAlignment.NEUTRAL.

What question did this study set out to answer?

To develop and evaluate a practical dose measurement methodology for kilovoltage cone beam computed tomography using equipment readily available in standard radiotherapy clinics.

August 29, 2026Annals of the ICRP

Development of a pragmatic methodology for measurement of dose for KV CBCT in radiotherapy: A pilot study

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Authors

MDM. Djukelic SGS. Gros TKT. Kron

Discussion

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Overview

Comparative study demonstrates standard clinic equipment accurately measures cone-beam computed tomography doses, suggesting radiation oncology centres can readily optimize imaging protocols.

Key Points

To develop and evaluate a practical dose measurement methodology for kilovoltage cone beam computed tomography using equipment readily available in standard radiotherapy clinics.
Assessed an alternative measurement arrangement comprising a 0.6 cc Farmer-type ionization chamber inside a 30 cm × 30 cm × 30 cm cubic phantom made of water-equivalent slabs.
Measured weighted dose index values from linear accelerator-based kilovoltage cone beam computed tomography and compared them against measurements from standard 100 mm chambers in cylindrical PMMA phantoms.
Weighted dose index values obtained with the alternative setup were determined to be a viable surrogate for conventional cylindrical CT phantom measurements.
The methodology provides an accessible approach for radiotherapy centers lacking dedicated CT dosimetry phantoms to quantify radiation dose and optimize imaging protocols.

Cite This Study

Djukelic et al. (2026) studied this question.

synapsesocial.com/papers/6a9299958e5d7d1fc0c11917 https://doi.org/10.1177/01466453251412497

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August 29, 2026Annals of the ICRP

Development of a pragmatic methodology for measurement of dose for KV CBCT in radiotherapy: A pilot study

View Full Paper

Ask AI

Bookmark

Authors

MDM. Djukelic SGS. Gros TKT. Kron

Discussion

Member takes

Overview

Comparative study demonstrates standard clinic equipment accurately measures cone-beam computed tomography doses, suggesting radiation oncology centres can readily optimize imaging protocols.

Key Points

To develop and evaluate a practical dose measurement methodology for kilovoltage cone beam computed tomography using equipment readily available in standard radiotherapy clinics.
Assessed an alternative measurement arrangement comprising a 0.6 cc Farmer-type ionization chamber inside a 30 cm × 30 cm × 30 cm cubic phantom made of water-equivalent slabs.
Measured weighted dose index values from linear accelerator-based kilovoltage cone beam computed tomography and compared them against measurements from standard 100 mm chambers in cylindrical PMMA phantoms.
Weighted dose index values obtained with the alternative setup were determined to be a viable surrogate for conventional cylindrical CT phantom measurements.
The methodology provides an accessible approach for radiotherapy centers lacking dedicated CT dosimetry phantoms to quantify radiation dose and optimize imaging protocols.

Cite This Study

Djukelic et al. (2026) studied this question.

synapsesocial.com/papers/6a9299958e5d7d1fc0c11917 https://doi.org/10.1177/01466453251412497

View Full Paper

Ask AI

Bookmark