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Source strength det...
Source strength determination in iridium-192 and cobalt-60 brachytherapy : A European survey on the level of agreement between clinical measurements and manufacturer certificates
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- Vijande, Javier (författare)
- Univ Valencia UV, Spain; Univ Valencia UV, Spain; IFIC UV CSIC, Spain
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- Carlsson Tedgren, Åsa (författare)
- Karolinska Institutet,Linköpings universitet,Avdelningen för diagnostik och specialistmedicin,Medicinska fakulteten,Region Östergötland, Medicinsk strålningsfysik,Karolinska Univ Hosp, Sweden; Karolinska Inst, Sweden
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- Ballester, Facundo (författare)
- Univ Valencia UV, Spain; Univ Valencia UV, Spain
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- Baltas, Dimos (författare)
- Univ Freiburg, Germany; German Canc Res Ctr, Germany
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- Papagiannis, Panagiotis (författare)
- Natl & Kapodistrian Univ Athens, Greece
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- Rivard, Mark J. (författare)
- Brown Univ, RI 02912 USA
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- Siebert, Frank-Andre (författare)
- Univ Hosp Schleswig Holstein, Germany
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- De Werd, Larry (författare)
- Univ Wisconsin, WI 53706 USA
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- Perez-Calatayud, Jose (författare)
- Univ Valencia UV, Spain; La Fe Hosp, Spain; Clin Benidorm, Spain
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(creator_code:org_t)
- Elsevier, 2021
- 2021
- Engelska.
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Ingår i: Physics and Imaging in Radiation Oncology. - : Elsevier. - 2405-6316. ; 19, s. 108-111
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https://liu.diva-por... (primary) (Raw object)
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http://phiro.science...
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https://urn.kb.se/re...
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Abstract
Ämnesord
Stäng
- Background and purpose: Brachytherapy treatment outcomes depend on the accuracy of the delivered dose distribution, which is proportional to the reference air-kerma rate (RAKR). Current societal recommendations require the medical physicist to compare the measured RAKR values to the manufacturer source calibration certificate. The purpose of this work was to report agreement observed in current clinical practice in the European Union. Materials and methods: A European survey was performed for high- and pulsed-dose-rate (HDR and PDR) highenergy sources (Ir-192 and Co-60), to quantify observed RAKR differences. Medical physicists at eighteen hospitals from eight European countries were contacted, providing 1,032 data points from 2001 to 2020. Results: Over the survey period, 77% of the Ir-192 measurements used a well chamber instead of the older Krieger phantom method. Mean differences with the manufacturer calibration certificate were 0.01% +/- 1.15% for Ir-192 and -0.1% +/- 1.3% for Co-60. Over 95% of RAKR measurements in the clinic were within 3% of the manufacturer calibration certificate. Conclusions: This study showed that the agreement level was generally better than that reflected in prior societal recommendations positing 5%. Future recommendations on high-energy HDR and PDR source calibrations in the clinic may consider tightened agreements levels.
Ämnesord
- MEDICIN OCH HÄLSOVETENSKAP -- Klinisk medicin -- Radiologi och bildbehandling (hsv//swe)
- MEDICAL AND HEALTH SCIENCES -- Clinical Medicine -- Radiology, Nuclear Medicine and Medical Imaging (hsv//eng)
Nyckelord
- RAKR; Calibration; HDR; PDR; Brachytherapy
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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