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Updated: Jul 19, 2026
08:32
Adapting Human Videofluoroscopic Swallow Study Methods to Detect and Characterize Dysphagia in Murine Disease Models
Published on: March 1, 2015
Radiation dose in videofluoroscopic swallow studies
Ivan Zammit-Maempel1, Claire-Louise Chapple, Paula Leslie
1Department of Clinical Radiology, Freeman Hospital, High Heaton, Newcastle upon Tyne, NE7 7DN, UK. ivan.zammit@nuth.nhs.uk
Dysphagia
|October 7, 2006
Summary
Videofluoroscopy (VFSS) is crucial for assessing swallowing disorders. This study found that VFSS can be performed with minimal radiation doses, establishing a benchmark for safe diagnostic procedures.
Area of Science:
- Radiology
- Medical Imaging
- Swallowing Disorders
Background:
- Videofluoroscopy is essential for diagnosing swallowing disorders.
- Limited data exists on radiation doses for videofluoroscopy.
- No national diagnostic reference level is established in the UK.
Purpose of the Study:
- To assess radiation doses in videofluoroscopy examinations.
- To establish a benchmark for radiation exposure during videofluoroscopy.
- To demonstrate that videofluoroscopy can be performed with minimal radiation.
Main Methods:
- Recorded screening times for 230 patients over 45 months.
- Calculated median screening time and dose-area product.
- Compared findings with regional data.
Main Results:
- Median screening time was 171 seconds.
- Median dose-area product was 1.4 Gy cm(2), below the northern England third quartile.
- Effective dose for typical videofluoroscopy is 0.2 mSv.
Conclusions:
- Videofluoroscopy is the optimal tool for assessing oropharyngeal swallow biomechanics.
- This study presents the largest dataset on videofluoroscopy swallow studies.
- Videofluoroscopy can be safely performed with minimal radiation exposure.
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