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Back to the 18 September 2026 edition

Pearl · 04 of 05

Put the reason the study is limited in the report, not in your head

Convert every technical limitation into a sentence naming what the scan cannot answer and what would answer it.

A scan degraded by motion, missing a sequence, or acquired without the contrast phase the question needed is a scan that will be acted on anyway unless the report says otherwise. 'Suboptimal' at the end of a technique line does not stop a surgeon booking a case; a sentence stating which question this study cannot answer does.

Write it as a consequence, not a complaint. Not 'motion artefact present' but 'motion artefact limits assessment of the pancreatic head; if clinical concern persists, repeat with breath-hold sequences'. Not 'no delayed phase' but 'without a delayed phase, washout cannot be assessed and a hypervascular lesion cannot be characterised'. The referring clinician then has a decision in front of them instead of a caveat they will read as hedging.

The same sentence protects the next reader. A follow-up comparison drawn against a limited baseline inherits that limitation silently, and the only defence is that the baseline report said so plainly.

  • Name the specific question the study cannot answer, not just the artefact
  • State what would answer it - which sequence, phase or modality
  • Put the limitation in the conclusion, where it will be read, not only in the technique
  • Flag a limited study explicitly as a baseline, for whoever compares against it later
  • Avoid bare terms like 'suboptimal' that carry no clinical instruction

Why it matters

A limitation noted in the technique line and not in the conclusion changes nothing about what happens to the patient.

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