Systematic radiographic technical evaluation (mnemonic)

Dr Henry Knipe and Andrew Murphy et al.

Systematic radiographic technical evaluation is an important aspect to evaluative, effective radiography. It is the process of assessing a radiographic image to ensure it meets a high level of diagnostic standard. Two mnemonics are commonly used when assessing a radiographic image:

  • PACEMAN
  • IMAACREAP

Although the use of plain radiographic technical evaluation seems overtly academic, radiographers will subconsciously go over a checklist like this after every examination.

Mnemonics

PACEMAN
  • P: positioning
  • A: is the anatomical area covered adequately 
  • C: collimation present
  • E: exposure is within range 
  • M: marker present and correct
  • A: aesthetics 
  • N: name is correct 
IMAACREAP
  • I: identification, ensuring correct patient was imaged
  • M: markers are present and correct
  • A: anatomy of interest is assessed and adequately covered  
  • A: artefacts are noted/assessed for  
  • C: collimation present
  • R: relative position to the central beam (centring)
  • E: exposure is within range
  • A: is any additional imaging required (repeat, supplementary views)
  • P: is pathology present that requires specialized projections i.e. horizontal beam hip
Radiographic views
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Article information

rID: 59179
Section: Radiography
Synonyms or Alternate Spellings:
  • PACEMAN
  • Radiographic image evaluation
  • Radiographic assessment

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Cases and figures

  • Figure 1: over exposure artifact
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  • Figure 2: pneumothorax on shoulder x-ray
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  • Figure 3: distal clavicle fracture hidden by x-ray marker
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  • Figure 4: static electricity artefact
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  • Figure 5: cooling blanket artefact
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