A Pilot Rotational Radiotherapy Audit: Is a 2D array suitable to replace film and ionisation chambers?
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The National Physical Laboratory, in collaboration with Royal Surrey County Hospital, the Institute for Physics and Engineering in Medicine [IPEM] and the Radiotherapy Trials QA group (RTTQA) has carried out a pilot audit of rotational intensity modulated radiotherapy (IMRT).
Rotational radiotherapy is treatment where radiation is delivered whilst the linac machine continuously rotates around the patient and hence this complex method of treatment requires advanced dosimetry methods.
There has been a fast uptake in hospitals of rotational treatments due to the speed of delivery and hence an assessment of measurement technique for carrying out an audit of this treatment approach has been undertaken, with a view to assessing a suitable approach for a national audit.