Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Experiment Videos

Histologic effect of a variable pulsed Er:YAG laser.

J M Pozner1, D J Goldberg

  • 1Division of Dermatology, New Jersey Medical School, Newark, USA.

Dermatologic Surgery : Official Publication for American Society for Dermatologic Surgery [Et Al.]
|August 12, 2000
PubMed
Summary

Newer dual-mode Er:YAG lasers offer precise ablation control similar to short-pulsed lasers. However, thermal effects from longer pulses may not consistently match settings after the first pass, impacting clinical use.

Related Concept Videos

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Increased risk of non-fatal overdose associated with non-prescribed benzodiazepine use in Scotland, UK.

The International journal on drug policy·2023
Same author

MR elastography-based staging of liver fibrosis in Fontan procedure associated liver disease is confounded by effects of venous congestion.

Clinical radiology·2022
Same author

Liver function tests in primary care provide a key opportunity to diagnose and engage patients with hepatitis C.

Epidemiology and infection·2022
Same author

National population prevalence of antibodies to SARS-CoV-2 among pregnant women in Scotland during the second wave of the COVID-19 pandemic: a prospective national serosurvey.

Public health·2021
Same author

National population prevalence of antibodies to SARS-CoV-2 in Scotland during the first and second waves of the COVID-19 pandemic.

Public health·2021
Same author

Complex differences in infection rates between ethnic groups in Scotland: a retrospective, national census-linked cohort study of 1.65 million cases.

Journal of public health (Oxford, England)·2021

Area of Science:

  • Dermatology
  • Laser Physics
  • Histopathology

Background:

  • Carbon dioxide (CO2) lasers cause significant thermal damage during laser resurfacing.
  • Short-pulsed Er:YAG lasers offer precise ablation depth control with minimal thermal damage.
  • Combined short-pulsed/long-pulsed Er:YAG lasers aim to provide both ablation control and adjustable thermal damage.

Purpose of the Study:

  • To correlate histologic effects of ablative and thermally damaging Er:YAG laser modes with machine settings.
  • To evaluate the precision of dual-mode Er:YAG laser parameters in achieving desired tissue effects.

Main Methods:

  • In situ laser irradiation of abdominoplasty specimens using various Er:YAG laser settings.
  • Histologic analysis of laser-treated tissue by a blinded dermatopathologist.

Related Experiment Videos

  • Measurement of ablation and thermal damage depths to compare with laser settings.

    • Main Results:

    • Short-pulsed Er:YAG laser ablation depths correlated well with chosen settings.
    • Longer-pulsed Er:YAG laser thermal damage showed correlation only on the first pass.
    • Repeated passes with variable pulse widths resulted in poor correlation between settings and histologic ablation/thermal damage depths.

    Conclusions:

    • Dual-mode Er:YAG lasers provide histologic ablation control comparable to short-pulsed lasers.
    • Longer Er:YAG pulses can achieve thermal effects similar to CO2 lasers.
    • While initial passes correlate well, subsequent passes with longer pulses show diminished correlation between settings and histologic outcomes, impacting clinical application.