Intrarater and interrater reliability for measurements in videofluoroscopy of swallowing

Laura Baijens*, Ali Barikroo, Walmari Pilz

*Corresponding author for this work

Research output: Contribution to journalArticleAcademicpeer-review

33 Citations (Web of Science)


Objective: Intrarater and interrater reliability is crucial to the quality of diagnostic and therapy-effect studies. This paper reports on a systematic review of studies on intrarater and interrater reliability for measurements in videofluoroscopy of swallowing. The aim of this review was to summarize and qualitatively analyze published studies on that topic. Materials and methods: Those published up to March 2013 were found through a comprehensive electronic database search using PubMed, Embase, and The Cochrane Library. Two reviewers independently assessed the studies using strict inclusion criteria. Results: Nineteen studies were included and then qualitatively analyzed. In several of these, methodological problems were found. Moreover, intrarater and interrater reliability varied with the measure applied. A meta-analysis was not carried out as studies were not of sufficient quality to warrant doing so. Conclusion: In order to achieve reliable measurements in videofluoroscopy of swallowing, it is recommended that raters use well-defined guidelines for the levels of ordinal visuoperceptual variables. Furthermore, in order to make the measurements reliable (intrarater and interrater) it is recommended that, following protocolled pre-experimental training, the raters should have maximum consensus about the definition of the measured variables.
Original languageEnglish
Pages (from-to)1683-1695
JournalEuropean Journal of Radiology
Issue number10
Publication statusPublished - Oct 2013


  • Reproducibility of results
  • Observer variation
  • Deglutition
  • Deglutition disorders
  • Fluoroscopy
  • Barium

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