TRICHOSCOPY IN CLINICAL STUDIES THE CHALLENGES OFSTANDARDIZATION: A SCOPE REVIEW.

Abstract

The standardization of trichoscopy images, with regard to compatibility of before and after images is a challenge. Faced with this problem, the objective of this study was to investigate the methodologies used by researchers in clinical studies in the area of trichoscopy. The methodology of this review was developed in acordance with the purposes of the scoping review. To this end, the keywords 'trichoscopy' and *hair were queried in the databases Scopus. Web of Science and Embase. Studies published on from 2019 to December 2023. Among the 4.088 studies found. 341 were duplicates, 3,742 did not fully meet the objective of this refiew. Thus. 5 studies were selected and 4 were submitted for consideration in this study. scope. According to the analysis of the studies, the compatibility of images trichoscopy in clinical studies depends on techniques developed by researchers, which are not very diverse, but innovative. The software TricholAB appears to be a promising tool, but with high investment, which makes access for researchers and universities difficult. Already the standardized grid by Starace et al (2019. 2020 and 2021): and Alessandrini et al (2021), needs to be further explored and explained so that other researchers can benefit from using this model. It is also suggested to apply of tests based on Kasprzak's FMaps concept. Sicinska and Tosti (2019) to prove the effectiveness of the grid. Since the challenge of compatibility of before and after trichoscopy images is a real problem, it is suggested development of other standardization models. Likewise, it is possible that some studies were not included in this review, therefore it is suggested the continuity of this research.