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Table 1 The Key Descriptors (quality measures) and the corresponding definition for adequacy. Ten Key Descriptors are described: Target volume definition, definition of dose planning procedures, radiation dose specification, fractionation specification, radiation prescription point specification, OAR constraints, simulation procedures, verification procedures, QA process for RT, QA process adherence reporting for RT

From: Quality of radiotherapy reporting in randomized controlled trials of prostate cancer

Key descriptors

Adequacy definition

Target volume definition

Define the Clinical Target Volume at least

Description of dose planning procedure

Must describe if inverse/forward planned, static IMRT vs dynamic/arc therapy

Radiation dose specification

Describe total dose and dose per fraction in centigray, Gray or rads

Fractionation specification

Describe the number and timing of fractions administered

Radiation prescription point specification

Describe the depth of radiation prescription point (for 3D conformal RT technique) or volume based dose prescription (for intensity modulated or Arc RT technique)

OAR constraints

Report OAR constraints

Simulation procedures

Report setup position or any rectal and bowel preparation

Verification procedures

Report the use of any verification procedures such as cone beam CT, EPI (electronic portal imaging), tracking

QA process for RT

Report the use of QA process for RT delivery

QA process adherence reporting for RT

Define deviations from protocol in RT delivery