Related Experiment Video
Updated: May 19, 2026
Laser Doppler Perfusion Imaging in the Mouse Hindlimb
Published on: April 18, 2021
Friction burns in children: does laser Doppler imaging have a role?
Seema Menon1, Diane Ward, John G Harvey
1Burns Unit and The Children's Hospital Burns Research Institute, The Children's Hospital at Westmead, Sydney Medical School, The University of Sydney, New South Wales, Australia.
Insights
Laser Doppler imaging (LDI) is less reliable for predicting pediatric friction burn healing outcomes compared to other burn types. This study found LDI accuracy was only 64% for friction burns.
Area of Science:
- Medical imaging
- Burn research
- Pediatric surgery
Background:
- Laser Doppler imaging (LDI) is a common tool for predicting pediatric burn wound outcomes.
- Previous studies focused on scald, contact, or flame burns, with limited research on friction burns.
Purpose of the Study:
- To evaluate the predictive value of LDI for pediatric friction burns.
- To compare LDI's effectiveness in friction burns versus other burn mechanisms.
Main Methods:
- Retrospective review of LDI scans for pediatric friction burns over two years.
- Analysis of 36 patients (mean age 3.6 years) to assess LDI prediction accuracy.
Main Results:
- LDI accurately predicted outcomes in 64% (23/36) of pediatric friction burns.
- In 13 cases, LDI predictions were inaccurate, with delayed healing or unexpected need for skin grafting.
- Discrepancies arose from correlating LDI flux with clinical appearance or inaccurate time-to-healing estimates.
Conclusions:
- Laser Doppler imaging appears less reliable for predicting pediatric friction burn outcomes compared to other burn types.
- Physical differences in friction burns may explain LDI's reduced accuracy.
- Further research is needed to understand LDI's limitations in friction burn assessment.
Abstract:
Laser Doppler imaging (LDI) has been increasingly used to predict pediatric burn wound outcome. A majority of these wounds are scald, contact, or flame burns. No study has specifically evaluated the use of LDI in pediatric friction burns. Our objective was to critically evaluate LDI assessment of pediatric friction burns to determine its predictive value with this mechanism of injury. We conducted a retrospective review of all LDI scans performed on pediatric friction burns during a 2-year period. We identified 36 patients with a mean age of 3.6 years (range, 19 months to 15 years). LDI accurately predicted burn wound outcome in 23 (64%) cases. In 13 cases, LDI did not correctly predict burn wound outcome. Eight were expected to heal within 14 days, but six of those eight took an average of 20.3 days to heal (range, 18-29 days), and the other two required skin grafting. Of the remaining five incorrect predictions, four were caused by an inability to correlate the flux scan with the clinical appearance of the burn, and one was thought to take more than 21 days to heal but healed within this period. Our data suggest that LDI appears to be a less reliable tool in predicting the outcome of friction burns when compared to other mechanisms of burn injury in children. This may reflect the physical differences in the mechanism of friction burns as opposed to other forms of thermal injury.
