Radiotherapy dosimetry audit: three decades of improving standards and accuracy in UK clinical practice and trials.
Dosimetry audit plays an important role in the development and safety of radiotherapy. National and large scale audits are able to set, maintain and improve standards, as well as having the potential to identify issues which may cause harm to patients. They can support implementation of complex techniques and can facilitate awareness and understanding of any issues which may exist by benchmarking centres with similar equipment. This review examines the development of dosimetry audit in the UK over the past 30 years, including the involvement of the UK in international audits. A summary of audit results is given, with an overview of methodologies employed and lessons learnt. Recent and forthcoming more complex audits are considered, with a focus on future needs including the arrival of proton therapy in the UK and other advanced techniques such as four-dimensional radiotherapy delivery and verification, stereotactic radiotherapy and MR linear accelerators. The work of the main quality assurance and auditing bodies is discussed, including how they are working together to streamline audit and to ensure that all radiotherapy centres are involved. Undertaking regular external audit motivates centres to modernize and develop techniques and provides assurance, not only that radiotherapy is planned and delivered accurately but also that the patient dose delivered is as prescribed.
1 Department of Medical Physics, Royal Surrey County Hospital, Guildford, Surrey, UK.|2 Radiation Dosimetry Group, National Physical Laboratory, Teddington, Middlesex, UK.
Catharine H
CH
Clark
3 RTTQA Group, Mount Vernon Hospital, Northwood, Middlesex, UK.
Edwin G A
EG
Aird
4 Medical Physics and Engineering Department, Christie Hospital NHS Foundation Trust, Manchester, UK.|5 Institute of Physics and Engineering in Medicine, York, UK.
Steve
S
Bolton
3 RTTQA Group, Mount Vernon Hospital, Northwood, Middlesex, UK.
Elizabeth A
EA
Miles
1 Department of Medical Physics, Royal Surrey County Hospital, Guildford, Surrey, UK.|6 Department of Physics, University of Surrey, Guildford, UK.
Andrew
A
Nisbet
2 Radiation Dosimetry Group, National Physical Laboratory, Teddington, Middlesex, UK.
Julia A D
JA
Snaith
2 Radiation Dosimetry Group, National Physical Laboratory, Teddington, Middlesex, UK.
Russell A S
RA
Thomas
3 RTTQA Group, Mount Vernon Hospital, Northwood, Middlesex, UK.
Karen
K
Venables
7 Institute of Medical Physics, School of Physics, University of Sydney, Sydney, NSW, Australia.
David I
DI
Thwaites
D002986:Clinical Trials as Topic; D006801:Humans; D008485:Medical Audit / Q000592:standards*; D011785:Quality Assurance, Health Care / Q000592:standards*; D011874:Radiometry / Q000592:standards*; D011878:Radiotherapy / Q000592:standards*; D006113:United Kingdom