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Dacryoscintigraphy is a safe and effective imaging test for evaluating the nasolacrimal system in children with epiphora. This physiological test provides valuable functional information with a low radiation dose, aiding clinical management.
Area of Science:
- Ophthalmology
- Nuclear Medicine
- Pediatric Imaging
Background:
- Epiphora, or excessive tearing, is a common condition in pediatric patients.
- Accurate diagnosis of nasolacrimal system dysfunction is crucial for appropriate management.
- Existing diagnostic methods may have limitations in providing functional information or involve higher radiation exposure.
Abstract:
Dacryoscintigraphy was performed in 34 pediatric patients aged between 13 months and 20 years. Twenty-six were 12 years of age or younger. The study is easy to perform and provides useful information regarding the function of the nasolacrimal system. The radiation dose to the lens of the eye, estimated to be 4-14m rads/100 uCi of technetium pertechnetate, is considerably less than that of a skull x-ray or dacryocystography. Of the 74 nasolacrimal systems studied, the findings were in agreement with the clinical observations and other methods of testing in 63. In nine instances, the findings altered the clinical management while the results were inconclusive or misleading in the remaining two. Dacryoscintigraphy was found to be a useful physiological test in the evaluation of children with epiphora.