Noninvasive clinical assessment of port-wine stain birthmarks using current and future optical imaging technology: A review

Arsalan Mazhar
Oxford Brookes University
Binna Choi
University of New South Wales
Sumeya Sharif
Columbus State Community College
Port-wine stain birthmarks are one class of benign congenital vascular malformation. Laser therapy is the most successful treatment modality of PWS. Unfortunately, this approach has limited efficacy, with only 10% of patients experiencing complete blanching of the PWS. To address this problem, several research groups have developed technologies and methods designed to study treatment outcome and improve treatment efficacy. This article reviews seven optical imaging techniques currently in use or under development to assess treatment efficacy, focusing on: reflectance spectrophotometers/tristimulus colorimeters; laser Doppler flowmetry and laser Doppler imaging; cross-polarized diffuse reflectance colour imaging system; reflectance confocal microscopy; optical coherence tomography; spatial frequency domain imaging; and laser speckle imaging. © 2012 The Authors. BJD © 2012 British Association of Dermatologists 2012.
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