Background: The high-energy pulsed carbon dioxide (CO2) laser has proven useful for skin resurfacing. The modality can be less penetrating than chemical peels and more accurate than dermabrasion.
Objective: To demonstrate the additional benefit of dermal remodeling (selective dermaplasty) of skin lesions, scars, grafts, folds, and eyelids.
Methods: The collimated and the computerized pattern generator handpieces were used with the high-energy pulsed CO2 laser at 250-350 mJ to remodel tissue. Usually three or four passes were adequate to vaporize tissue and shrink collagen.
Results: A rejuvenated earlobe, eyelid, or forehead was produced in a predictable fashion. The tissue irregularities of scars, dog-ears, or trap-door deformities were reduced and remodeled.
Conclusion: Dermal remodeling (selective dermaplasty) with the high-energy pulsed CO2 laser has proved a useful tool to remodel the skin. Areas such as the earlobe, the forehead, the eyelids, or skin lesions can be vaporized to develop a more youthful appearance. We find this a useful addition to the armamentarium of the cosmetic dermatologist.
Download full-text PDF |
Source |
---|---|
http://dx.doi.org/10.1111/j.1524-4725.1998.tb04049.x | DOI Listing |
Phys Rev Lett
December 2024
Stanford University, Department of Mechanical Engineering, Stanford, California 94305, USA.
The extreme electric fields created in high-intensity laser-plasma interactions could generate energetic ions far more compactly than traditional accelerators. Despite this promise, laser-plasma accelerator experiments have been limited to maximum ion energies of ∼100 MeV/nucleon. The central challenge is the low charge-to-mass ratio of ions, which has precluded one of the most successful approaches used for electrons: laser wakefield acceleration.
View Article and Find Full Text PDFThrough the investigation of spectral characteristics, the evolution of cluster proportions and the cross-relaxation process in Tm:CaF crystals as a function of Tm doping concentration has been clarified. A quantitative model has been established to describe the relationship between these factors. At low concentrations (0.
View Article and Find Full Text PDFThe ever-increasing energy/power of modern laser sources is inevitably leading to new challenges and opportunities. One of them is the problem of spectral broadening of high-energy femtosecond pulses and their subsequent compression in time in, e.g.
View Article and Find Full Text PDFSci Rep
January 2025
IBM T. J. Watson Research Center, Yorktown Heights, NY, 10598, USA.
The development of high-brightness electron sources is critical to state-of-the-art electron accelerator applications like X-ray free electron laser (XFEL) and ultra-fast electron microscopy. Cesium telluride is chosen as the electron source material for multiple cutting-edge XFEL facilities worldwide. This manuscript presents the first demonstration of the growth of highly crystalized and epitaxial cesium telluride thin films on 4H-SiC and graphene/4H-SiC substrates with ultrasmooth film surfaces.
View Article and Find Full Text PDFJ Med Imaging (Bellingham)
January 2025
U.S. Food and Drug Administration, Office of Science and Engineering Labs, Division of Imaging, Diagnostics, and Software Reliability, Silver Spring, Maryland, United States.
Purpose: We evaluate the impact of charge summing correction on a cadmium telluride (CdTe)-based photon-counting detector in breast computed tomography (CT).
Approach: We employ a custom-built laboratory benchtop system using the X-THOR FX30 0.75-mm CdTe detector (Varex Imaging, Salt Lake City, Utah, United States) with a pixel pitch of 0.
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!