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Br J Radiol. 2016;89(1058):20150452. doi: 10.1259/bjr.20150452. Epub 2015 Dec 21.

Current status of cranial stereotactic radiosurgery in the UK.

Author information

1
1 Department of Physics, Faculty of Engineering and Physical Sciences, University of Surrey, Guildford, UK.
2
2 Department of Medical Physics, Royal County Hospital NHS Foundation Trust, Guildford, UK.
3
3 Radiation Dosimetry Group, National Physical Laboratory, Teddington, Middlesex, UK.
4
4 Manchester Academic Science, Institute of Cancer Sciences, University of Manchester, Manchester, UK.
5
5 The Christie NHS Foundation Trust, Manchester, UK.

Abstract

OBJECTIVE:

To investigate and benchmark the current clinical and dosimetric practices in stereotactic radiosurgery (SRS) in the UK.

METHODS:

A detailed questionnaire was sent to 70 radiotherapy centres in the UK. 97% (68/70) of centres replied between June and December 2014.

RESULTS:

21 centres stated that they are practising SRS, and a further 12 centres plan to start SRS by the end of 2016. The most commonly treated indications are brain metastases and acoustic neuromas. A large range of prescription isodoses that range from 45% to 100% between different radiotherapy centres was seen. Ionization chambers and solid-water phantoms are used by the majority of centres for patient-specific quality assurance, and thermoplastic masks for patient immobilization are more commonly used than fixed stereotactic frames. The majority of centres perform orthogonal kilovoltage X-rays for localization before and during delivery. The acceptable setup accuracy reported ranges from 0.1 to 2 mm with a mean of 0.8 mm.

CONCLUSION:

SRS has been increasing in use in the UK and will continue to increase in the next 2 years. There is no current consensus between SRS centres as a whole, or even between SRS centres with the same equipment, on the practices followed. This indicates the need for benchmarking and standardization in SRS practices within the UK.

ADVANCES IN KNOWLEDGE:

This article outlines the current practices in SRS and provides a benchmark for reference and comparison with future research in this technique.

PMID:
26689091
PMCID:
PMC4985193
DOI:
10.1259/bjr.20150452
[Indexed for MEDLINE]
Free PMC Article

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