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Related Experiment Videos

Trichoscan: what is new?

Rolf Hoffmann1

  • 1Dermaticum, Practice for Dermatology, Freiburg, Germany. rolf.hoffmann@dermaticum.de

Dermatology (Basel, Switzerland)
|June 29, 2005
PubMed
Summary
This summary is machine-generated.

A new tool, Trichoscan, accurately measures hair growth and treatment response for androgenetic alopecia (AGA). This method combines microscopy and digital analysis, proving effective in a minoxidil treatment study.

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Area of Science:

  • Dermatology
  • Trichology
  • Medical Imaging Analysis

Background:

  • Androgenetic alopecia (AGA) treatment is lengthy, making outcome measurement challenging.
  • A sensitive tool is needed to monitor hair loss and treatment efficacy.

Purpose of the Study:

  • To develop and validate the Trichoscan system for precise human hair measurement.
  • To assess Trichoscan's utility in monitoring AGA treatment response.

Main Methods:

  • Trichoscan combines epiluminescence microscopy and digital image analysis.
  • It measures hair density, diameter, growth rate, and hair types (vellus/terminal).
  • Intraclass correlation coefficients (ICC) demonstrated high operator reliability (91-97%).

Main Results:

Related Experiment Videos

  • A 6-month study on 9 men with frontal balding using 5% minoxidil showed significant increases.
  • After 3 months: hair density increased by +21.3 hairs/cm² (p=0.047) and cumulative thickness by +0.61 mm (p=0.008).
  • After 6 months: hair density increased by +34 hairs/cm² (p=0.011) and cumulative thickness by +0.88 mm (p=0.010).

Conclusions:

  • Trichoscan is a reliable and sensitive tool for hair growth analysis in AGA.
  • It facilitates clinical studies comparing treatments and evaluating hair-promoting substances.
  • Potential applications include studying hypertrichosis and hirsutism treatments.