Comparison of trained clinician ratings with expert ratings of aspiration on videofluoroscopic images from a randomized clinical trial

Jacqueline A. Hind, Gary Gensler, Diane K. Brandt, Patricia J. Miller Gardner, Loreen Blumenthal, Gary D. Gramigna, Steven Kosek, Donna Lundy, Susan McGarvey-Toler, Susan Rockafellow, Paula A. Sullivan, Marybell Villa, Gary D. Gill, Anne S. Lindblad, Jeri A. Logemann, Joanne Robbins

Research output: Contribution to journalArticlepeer-review

34 Scopus citations

Abstract

Accurate detection and classification of aspiration is a critical component of videofluoroscopic swallowing evaluation, the most commonly utilized instrumental method for dysphagia diagnosis and treatment. Currently published literature indicates that interjudge reliability for the identification of aspiration ranges from poor to fairly good depending on the amount of training provided to clinicians. The majority of extant studies compared judgments among clinicians. No studies included judgments made during the use of a postural compensatory strategy. The purpose of this study was to examine the accuracy of judgments made by speech-language pathologists (SLPs) practicing in hospitals compared with unblinded expert judges when identifying aspiration and using the 8-point Penetration/Aspiration Scale. Clinicians received extensive training for the detection of aspiration and minimal training on use of the Penetration/Aspiration Scale. Videofluoroscopic data were collected from 669 patients as part of a large, randomized clinical trial and include judgments of 10,200 swallows made by 76 clinicians from 44 hospitals in 11 states. Judgments were made on swallows during use of dysphagia compensatory strategies: chin-down posture with thin liquids and head-neutral posture with thickened liquids (nectar-thick and honey-thick consistencies). The subject population included patients with Parkinson's disease and/or dementia. Kappa statistics indicate high accuracy for all interventions by SLPs for identification of aspiration (all κ > 0.86) and variable accuracy (range = 69-76%) using the Penetration/Aspiration Scale when compared to expert judges. It is concluded that while the accuracy of identifying the presence of aspiration by SLPs is excellent, more extensive training and/or image enhancement is recommended for precise use of the Penetration/Aspiration Scale.

Original languageEnglish (US)
Pages (from-to)211-217
Number of pages7
JournalDysphagia
Volume24
Issue number2
DOIs
StatePublished - Jun 2009

Keywords

  • Accuracy
  • Aspiration
  • Clinical trial
  • Deglutition
  • Deglutition disorders
  • Penetration/Aspiration Scale

ASJC Scopus subject areas

  • Otorhinolaryngology
  • Gastroenterology
  • Speech and Hearing

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