Diagnostic Radiology: Image Optimisation and Patient Dose Measurement (SPE152)

Work-based learning outcomes

  1. Perform measurements to assess image quality in various types of equipment, to include computer radiography, digital radiography, CT and image intensifier systems
  2. Perform appropriate measurements and/or calculations to assess patient dose for a range of examinations, which must include examples from radiographic, fluoroscopic, CT and mammographic examinations
  3. Analyse patient dose measurements and, in the context of optimisation, draw conclusions
  4. Assess, by simulation and/or measurement, patient dose reduction interventions
  5. Calculate organ dose and effective dose, relate dose to risk and effectively communicate the risk
Number Work-based learning outcome Title Knowledge
1 2

Review and critically appraise the patient dose measurement framework

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2 1

Review and analyse methods for assessment of image quality in a range of diagnostics radiology equipment, including computed radiography, digital radiography, CT and image intensifier systems

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3 1

Undertake measurements to assess image quality in a range of diagnostics radiology equipment, including computed radiography, digital radiography, CT and image intensifier systems, and interpret results in the context of the clinical use

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4 2

Undertake measurements to assess the patient dose in the equipment settings used to assess image quality above and advise on appropriate diagnostic reference levels

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5 1

Review and develop parameters for assessing clinical image quality with clinical staff

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6 3,4

Review the outcome of image quality and patient dose measurements in a range of systems and recommend optimisation strategies Assess by simulation or measurement the effect of the optimisation suggested

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7 5

Calculate organ dose and effective dose for a range of investigations

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8 5

Calculate radiation risks and communicate them effectively to various staff groups and the patient

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You must complete
2 Case-based discussion(s)
1 of the following DOPS / OCEs
Assessment Title Type
Undertake CTDIw measurement DOPS
Discuss optimisation strategies with users and the installer during commissioning of diagnostic X-ray equipment DOPS
Assess image quality for a diagnostic X-ray machine using a simple test object DOPS
Undertake entrance surface dose measurements for a fluoroscopy system DOPS
Analyse and interpret data from a multislice CT phantom DOPS
Use a (commerically available) software program to calculate a patient dose DOPS
Measure the image quality in fluoroscopy and acqusition modes at varying pulse / frame rates on an image intensifier or flat panel screening system DOPS
Measure the image quality for a mammography unit using a variety of test objects DOPS
Explain CTDIw meaurement to a clinical team member OCE
Present patient dose data to a multidisciplinary audience OCE
Advise patients undergoing therapeutic isotope administration in Nuclear Medicine. OCE
Calculate a patient dose for external radiation exposure and discuss the dose and risk with the patient. OCE
Calculate patient dose for internal radiation exposure and discuss the dose and risk with the patient where possible. OCE