Publications & book chapters

Publications on TrichoScan®

Eren, S., Beyer, K. & Olejarczyk-Ekman, I.

TrichoScan: computergestützte Haaranalyse für Diagnostik und Verlauf.

Dermatologie 2026 March 31. doi: 10.1007/s00105-026-05659-5. Link

Ästhetische Dermatologie und Dermatochirurgie.

Supplement Dermatologie, March 2026, page 37. Download

Lüdtke H., Hoffmann R., Ellwanger, U.

Ein Überblick über 25 Jahre: KI-gestützte Haaranalyse mittels »Deep Learning« –jetzt ohne Färben.

Derm Praktische Dermatologie 2/2025 191-9 Link Download

Lili Legiawati, Irma Bernadette S Sitohang, Shannaz Nadia Yusharyahya, Sondang P Sirait, Endi Novianto, Em Yunir, Brigitta Cindy Lauren, Nadhira Permata Hakiki, Faizal Dzaky Rahmadika

The comparison of metabolic syndrome parameters, trichoscopic and trichoscan characteristics in androgenetic alopecia (AGA) and early-onset androgenetic alopecia (early-onset AGA)

Arch Dermatol Res. 2024 Aug 29;316(8):581. doi: 10.1007/s00403-024-03297-2. Link

Kubra Nur Ozcan, Serpil Sener, Nihal Altunisik, Dursun Turkmen

Platelet rich plasma application by dermapen microneedling and intradermal point-by-point injection methods, and their comparison with clinical findings and trichoscan in patients with androgenetic alopecia

Dermatol Ther. 2022 Jan;35(1):e15182. doi: 10.1111/dth.15182. Link

A Bilgiç Temel, K H Gülkesen, Ö Dicle

Automated digital image analysis (TrichoScan) in male patients with androgenetic alopecia; comparison with manual marking of hairs on trichoscopic images

Skin Res Technol. 2018 Aug;24(3):515-516. doi: 10.1111/srt.12449. Link

Blume-Peytavi U, Issiakhem Z, Gautier S, Kottner J, Wigger-Alberti W, Fischer T, Hoffmann R, Tonner F, Bouroubi A, Voisard JJ

Efficacy and safety of a new 5% minoxidil formulation in male androgenetic alopecia: A randomized, placebo-controlled, double-blind, noninferiority study.

J Cosmet Dermatol. 2018 Apr 16. doi: 10.1111/jocd.12541. Link

R. Hoffmann, H. Lüdtke.

Trichoscan®.

In: FM Camacho, A Tosti (eds); Montagna Trichology Diseases of the pilosebaceus follicle, Vol I (2016), Page 177-183 Download

R. Hoffmann, H. Lüdtke, M. Hoffman-Wecker, B. J. Hughes-Formella.

Digital imaging for measuring of hair growth on the human scalp.

In: E. Berardesca et al. (eds); Non Invasive Diagnostic Techniques in Clinical Dermatology (2014), Page 413-422

J Gassmueller, E Rowold, T Frase and B Hughes-Formella

Validation of TrichoScan ® technology as a fully-automated tool for evaluation of hair growth parameters.

Eur J Dermatol (2009) Feb (12): 224-31 Download

J Gassmueller, R Hoffmann and A Webster

Topical fulvestrant solution has no effect on male and postmenopausal female androgenetic alopecia: results from two randomized, proof-of-concept studies.

British Journal of Dermatology (2008) 158, 109–115

R Hoffmann

A 4-month, open-label study evaluating the efficacy of eflornithine 11.5% cream in the treatment of unwanted facial hair in women using TrichoScan.

Eur J Dermatol (2008) 18 (1): 65-70 Download

R Hoffmann (comment to Van Neste)

TrichoScan, a GCP-validated tool to measure hair growth.

JEADV (2008) 22, 101–136

N Lengg, Heidecker B, Seifert B, RM Trüeb

Dietary supplement increases anagen hair rate in women with telogen effluvium: results of a double-blind, placebo-controlled trial.

Therapy (2007) 4, 59–65

D Van Neste, RM Trüeb

Critical study of hair growth analysis with computer-assisted methods.

JEADV (2006) 20, 578–583

U Blume-Peytavi, C Kunte, A Krisp, N Garcia Bartels, U Ellwanger, R Hoffmann

Comparison of the efficacy and safety of topical minoxidil and topical alfatradiol in the treatment of androgenetic alopecia in women.

JDDG (2007) 5 (5): 391-395 Download

R Hoffmann and D Van Neste

Recent Findings with Computerized Methods for Scalp Hair Growth Measurements.

J Investig Dermatol Symp Proc 2005 Dec;10(3):285-8.

R Hoffmann

TrichoScan: What Is New?

Dermatology (2005) 211:54–62

A J Chamberlain and R Dawber

Methods of evaluating hair growth.

Australasian Journal of Dermatology (2003) 44:10–18

R Hoffmann

TrichoScan: A Novel Tool For The Analysis of Hair Growth in vivo.

J Investig Dermatol Symp Proc. 2003 Jun;8(1):109-15.

R Hoffmann

TrichoScan: Ein neues Werkzeug für die digitale Haarzählung.

Hautarzt (2002) 53:798–804 Download

R Hoffmann

TrichoScan: combining epiluminescence microscopy with digital image analysis for the measurement of hair growth in vivo.

Eur J Dermatol (2001) 11: 362-368 Download