MedStar Authors catalog › Details for: Examination of the Early Diagnostic Applicability of Active Dynamic Thermography for Burn Wound Depth Assessment and Concept Analysis.
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Examination of the Early Diagnostic Applicability of Active Dynamic Thermography for Burn Wound Depth Assessment and Concept Analysis.

by Prindeze, Nicholas J; Mino, Matthew J; Mauskar, Neil A; Travis, Taryn E; Paul, Dereck W; Moffatt, Lauren T; Shupp, Jeffrey W.
Citation: Journal of Burn Care & Research. 36(6):626-35, 2015 Nov-Dec..Journal: Journal of burn care & research : official publication of the American Burn Association.Published: 2015ISSN: 1559-047X.Full author list: Prindeze NJ; Fathi P; Mino MJ; Mauskar NA; Travis TE; Paul DW; Moffatt LT; Shupp JW.UI/PMID: 25412050.Subject(s): Animals | Biopsy, Needle | Burns/di [Diagnosis] | *Burns/pa [Pathology] | Burns/th [Therapy] | Disease Models, Animal | *Early Diagnosis | Immunohistochemistry | Injury Severity Score | *Laser-Doppler Flowmetry/mt [Methods] | Male | Random Allocation | Sensitivity and Specificity | Skin/bs [Blood Supply] | Swine | *Thermography/mt [Methods] | *Wound Healing/ph [Physiology]Institution(s): MedStar Washington Hospital CenterDepartment(s): Surgery/Burn ServicesActivity type: Journal Article.Medline article type(s): Journal Article | Research Support, Non-U.S. Gov'tOnline resources: Click here to access online Digital Object Identifier: (Click here) Abbreviated citation: J Burn Care Res. 36(6):626-35, 2015 Nov-Dec.Local Holdings: Available online through MWHC library: 2006 - present, Available in print through MWHC library: 2006 - present.Abstract: Despite advances in perfusion imaging, burn wound imaging technology continues to lag behind that of other fields. Quantification of blood flow is able to predict time for healing, but clear assessment of burn depth is still questionable. Active dynamic thermography (ADT) is a noncontact imaging modality capable of distinguishing tissue of different thermal conductivities. Utilizing the abnormal heat transfer properties of the burn zones, we examined whether ADT was useful in the determination of burn depth in a model of early burn wound evaluation. Duroc pigs (castrated male; n = 3) were anesthetized, and two burns were created with an aluminum billet at 3 and 12 seconds. These contact times resulted in superficial partial and deep partial thickness burn wounds, respectively. ADT and laser Doppler imaging (LDI) imaging were performed every 30 minutes postburn for a total of five imaging sessions ending 150 minutes postburn. For ADT, imaging excitation was performed for 42-120 seconds with dual quartz-infrared lamps, and subsequent infrared image capture was performed for 300 seconds. MATLAB-assisted image analysis was performed to determine burn zone region of interest thermal relaxation and characteristic patterns. LDI was performed with a moorLDI system, and biopsies were captured for histology following the 150-minute imaging session. Both ADT and LDI imaging modalities are able to detect different physical properties at 30, 60, 90 120, and 150 minutes postburn with statistical significance (P < 0.05). Resultant ADT cooling curves characterize greater differences with greater stimulation and a potentially more identifiable differential cooling characteristic. Histological analysis confirmed burn depth. This preliminary work confirms that ADT can measure burn depth and is deserving of further research either as a stand-alone imaging technology or in combination with a device to assess perfusion.

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