Theoretical evaluation of pulsed photothermal radiometry (PPTR) for depth profiling of port wine stain skin

2003 ◽  
Author(s):  
Bernard Choi ◽  
Boris Majaron ◽  
J. S. Nelson
Keyword(s):  
Depth Profiling ◽  
Photothermal Radiometry ◽  
Port Wine Stain ◽  
Port Wine ◽  
Theoretical Evaluation ◽  
Pulsed Photothermal Radiometry

scholarly journals Pulsed photothermal radiometry of port-wine-stain lesions

1993 ◽  
Vol 32 (13) ◽  
pp. 2439 ◽  
Author(s):  
Steven L. Jacques ◽  
J. Stuart Nelson ◽  
William H. Wright ◽  
Thomas E. Milner
Keyword(s):  
Photothermal Radiometry ◽  
Port Wine Stain ◽  
Port Wine ◽  
Pulsed Photothermal Radiometry

Imaging of Port Wine Stain Lesions Using a Multi-Sensor Photoacoustic Probe

2004 ◽  
Author(s):  
John S. Viator ◽  
Steven L. Jacques ◽  
Guillermo Aguilar
Keyword(s):  
Human Skin ◽  
Acoustic Waves ◽  
Basal Layer ◽  
Depth Profiling ◽  
Spatial Relationship ◽  
Skin Surface ◽  
Port Wine Stain ◽  
Port Wine ◽  
Nanosecond Pulses ◽  
Visible Reflectance

Successful treatment of port wine stain (PWS) birthmarks in human skin utilizes cryogen spray cooling (CSC) in conjunction with laser treatment. CSC pre-cools the epidermis to protect it from subsequent laser irradiation which raises the temperature of both the epidermis and the deeper PWS. As the epidermal temperature is depressed by cryogen, damage to the skin surface is minimized while the PWS reaches temperatures sufficient to permanently damage the lesion. In order to optimize cooling and laser heating dosages and to properly guide laser therapy, the spatial relationship of epidermal melanin and PWS must be known. Photoacoustic depth profiling of human skin uses low energy, nanosecond pulses of laser light to induce acoustic waves in optically absorbing media, such as blood and melanin. We used a 532 nm Nd:YAG laser to measure total epidermal melanin content in human skin, comparing the results with visible reflectance spectroscopy. Furthermore, we performed numerical simulations of photoacoustic generation in skin, showing that a hemisperical acoustic sensor array could be used to reconstruct the rete pattern of epidermal melanin in the basal layer. Finally, we built a hemispherical probe for use in future experiments for imaging of human skin.

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

2004 ◽  
Vol 9 (5) ◽  
pp. 961 ◽  
Author(s):  
Bincheng Li ◽  
Boris Majaron ◽  
John A. Viator ◽  
Thomas E. Milner ◽  
Zhongping Chen ◽  
...  
Keyword(s):  
Blood Vessel ◽  
Human Skin ◽  
Photothermal Radiometry ◽  
Port Wine ◽  
Pulsed Photothermal Radiometry

scholarly journals Pulsed photothermal radiometry of port-wine stains

1993 ◽  
Author(s):  
Thomas E. Milner ◽  
J. Stuart Nelson ◽  
N. Q. Tran ◽  
Abraham Katzir ◽  
Lars O. Svaasand ◽  
...  
Keyword(s):  
Photothermal Radiometry ◽  
Port Wine ◽  
Port Wine Stains ◽  
Pulsed Photothermal Radiometry

Pulsed photothermal radiometry for depth profiling of layered media

1987 ◽  
Vol 51 (25) ◽  
pp. 2076-2078 ◽  
Author(s):  
Frederick H. Long ◽  
R. Rox Anderson ◽  
Thomas F. Deutsch
Keyword(s):  
Depth Profiling ◽  
Layered Media ◽  
Photothermal Radiometry ◽  
Pulsed Photothermal Radiometry
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