Optical coherence tomography for longitudinal monitoring of vasculature in scars treated with laser fractionation

Peijun Gong, Shaghayegh Es'Haghian, K.A. Harms, A. Murray, Suzanne Rea, Brendan Kennedy, Fiona Wood, David Sampson, Robert Mclaughlin

Research output: Contribution to journalArticlepeer-review

40 Citations (Scopus)

Abstract

© 2016 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.This study presents the first in vivo longitudinal assessment of scar vasculature in ablative fractional laser treatment using optical coherence tomography (OCT). A method based on OCT speckle decorrelation was developed to visualize and quantify the scar vasculature over the treatment period. Through reliable co-location of the imaging field of view across multiple imaging sessions, and compensation for motion artifact, the study was able to track the same scar tissue over a period of several months, and quantify changes in the vasculature area density. The results show incidences of occlusion of individual vessels 3 days after the first treatment. The subsequent responses ~20 weeks after the initial treatment show differences between immature and mature scars. Image analysis showed a distinct decrease (25 ± 13%, mean ± standard deviation) and increase (19 ± 5%) of vasculature area density for the immature and mature scars, respectively. This study establishes the feasibility of OCT imaging for quantitative longitudinal monitoring of vasculature in scar treatment. En face optical coherence tomography vasculature images pre-treatment (top) and ~20 weeks after the first laser treatment (bottom) of a mature burn scar. Arrows mark the same vessel pattern.
Original languageEnglish
Pages (from-to)626-636
Number of pages11
JournalJournal of Biophotonics
Volume9
Issue number6
Early online date11 Aug 2015
DOIs
Publication statusPublished - 1 Jun 2016

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