Computational model to evaluate port wine stain depth profiling using pulsed photothermal radiometry

Computational model to evaluate port wine stain depth profiling using pulsed photothermal radiometry.

We report on development of an optical-thermal model to evaluate the use of pulsed photothermal radiometry (PPTR) for depth profiling of port wine stain (PWS) skin. In the model, digitized histology sections of a PWS biopsy were used as the input skin geometry. Laser induced temperature profiles were reconstructed from simulated PPTR signals by applying an iterative, non-negatively constrained ...

Accurate measurement of blood vessel depth in port wine stained human skin in vivo using pulsed photothermal radiometry.

We report on application of pulsed photothermal radiometry (PPTR) to determine the depth of port wine stain (PWS) blood vessels in human skin. When blood vessels are deep in the PWS skin (>100 microm), conventional PPTR depth profiling can be used to determine PWS depth with sufficient accuracy. When blood vessels are close or partially overlap the epidermal melanin layer, a modified PPTR techn...

Synergistic photodynamic and photothermal treatment of port-wine stain?

Real-time photothermal imaging and response in pulsed dye laser treatment for port wine stain patients.

BACKGROUND This study was performed to assess the photothermal response of highly focused laser energy using infrared thermal imaging instrument to detect and assess the actual temperature distribution during flash lamp pumped pulsed dye laser (FLPPDL) treatment for port wine stain (PWS) patients and avoiding its complications. METHODS A retrospective review of 40 patients with PWS birthmark ...

A Comparison of Acquired Port-wine Stain with Congenital Port-wine Stain Using an Image Analyzer.

BACKGROUND Recent reports have proposed that there were no differences between acquired port-wine stain (APWS) and congenital port-wine stain (CPWS) except the onset of disease. Pulsed dye laser (PDL) therapy is regarded as the treatment of choice in PWS. Although in some articles, APWS might have shown a better response to PDL than CPWS, this is still controversial. It has been assumed however...