scholarly journals Depth determination of chromophores in human skin by pulsed photothermal radiometry

1996 ◽  
Vol 35 (19) ◽  
pp. 3379 ◽  
Author(s):  
Thomas E. Milner ◽  
Derek J. Smithies ◽  
Dennis M. Goodman ◽  
Alice Lau ◽  
J. Stuart Nelson
Keyword(s):  
Human Skin ◽  
Photothermal Radiometry ◽  
Pulsed Photothermal Radiometry ◽  
Depth Determination

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 Noninvasive Monitoring of Dynamical Processes in Bruised Human Skin Using Diffuse Reflectance Spectroscopy and Pulsed Photothermal Radiometry

Sensors ◽  
2021 ◽  
Vol 21 (1) ◽  
pp. 302
Author(s):  
Ana Marin ◽  
Nina Verdel ◽  
Matija Milanič ◽  
Boris Majaron
Keyword(s):  
Human Skin ◽  
Diffuse Reflectance ◽  
Diffuse Reflectance Spectroscopy ◽  
Healing Process ◽  
Reflectance Spectroscopy ◽  
Visible Spectral Range ◽  
Photothermal Radiometry ◽  
Model Parameters ◽  
Dynamical Processes ◽  
Pulsed Photothermal Radiometry

We have augmented a recently introduced method for noninvasive analysis of skin structure and composition and applied it to monitoring of dynamical processes in traumatic bruises. The approach combines diffuse reflectance spectroscopy in visible spectral range and pulsed photothermal radiometry. Data from both techniques are analyzed simultaneously using a numerical model of light and heat transport in a four-layer model of human skin. Compared to the earlier presented approach, the newly introduced elements include two additional chromophores (β-carotene and bilirubin), individually adjusted thickness of the papillary dermal layer, and analysis of the bruised site using baseline values assessed from intact skin in its vicinity. Analyses of traumatic bruises in three volunteers over a period of 16 days clearly indicate a gradual, yet substantial increase of the dermal blood content and reduction of its oxygenation level in the first days after injury. This is followed by the emergence of bilirubin and relaxation of all model parameters towards the values characteristic for healthy skin approximately two weeks after the injury. The assessed parameter values and time dependences are consistent with existing literature. Thus, the presented methodology offers a viable approach for objective characterization of the bruise healing process.

Determination of optical properties of turbid media using pulsed photothermal radiometry

1992 ◽  
Vol 37 (6) ◽  
pp. 1203-1217 ◽  
Author(s):  
S A Prahl ◽  
I A Vitkin ◽  
U Bruggemann ◽  
B C Wilson ◽  
R R Anderson
Keyword(s):  
Optical Properties ◽  
Photothermal Radiometry ◽  
Turbid Media ◽  
Pulsed Photothermal Radiometry
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