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Experimental study of multiple-intermittent cryogen spurts and laser pulses for the treatment of port wine stain birthmarks
 

Summary: Experimental study of multiple-intermittent cryogen spurts and
laser pulses for the treatment of port wine stain birthmarks
Guillermo Aguilar1,2
, Bernard Choi1
, John A. Viator1
, Dan Andersen3
, and J. Stuart Nelson1,2
1
Beckman Laser Institute, University of California, Irvine, CA 92612
2
Department of Biomedical Engineering, University of California, Irvine, CA 92612
3
Lumenis Inc., 2400 Condensa St., Santa Clara, CA 95051
ABSTRACT
Cryogen spray cooling (CSC) is used to minimize the risk of epidermal damage during pulsed laser treatment of
port wine stain (PWS) birthmarks. Unfortunately, the current approach to CSC does not provide the necessary
epidermal protection for all patients, particularly those with darker skin types. Therefore, alternative approaches
need to be sought to improve PWS laser therapy.
On a previous numerical study we showed that using multiple-intermittent CSC spurts and laser pulses could
permit, under certain conditions, the use of higher laser doses while providing sufficient epidermal protection. In

  

Source: Aguilar, Guillermo - Department of Mechanical Engineering, University of California at Riverside

 

Collections: Engineering