{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,30]],"date-time":"2026-09-30T00:46:02Z","timestamp":1790729162294,"version":"4.1.0"},"reference-count":25,"publisher":"Wiley","issue":"2","license":[{"start":{"date-parts":[[2020,7,20]],"date-time":"2020-07-20T00:00:00Z","timestamp":1595203200000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Skin Research and Technology"],"published-print":{"date-parts":[[2021,3]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:sec><jats:title>Background<\/jats:title><jats:p>Hair loss is a common problem in dermatological patients. Its diagnosis is based on selected non\u2010invasive and invasive tests. Searching for new diagnostic methods, especially non\u2010invasive ones, aims to accelerate the correct diagnosis in the least invasive way possible. The aim of our study was to establish the characteristics of ultrasound images in healthy individuals and to compare them to selected trichoscopic parameters.<\/jats:p><\/jats:sec><jats:sec><jats:title>Materials and methods<\/jats:title><jats:p>Eighteen healthy adults (10 women and 8 men) underwent trichoscopy and high\u2010frequency ultrasound (HF\u2010USG) with 20\u00a0MHz DermaScan transducer on the parietal region of the scalp. Selected parameters were compared in relation to sex and the research method used.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>HF\u2010USG of the parietal area in all examined patients revealed hyperechogenic entrance echo and less echogenic layer corresponding to the dermis with well\u2010defined hypoechoic follicular structures (FS). The number of hair units in trichoscopy and the number of FS in HF\u2010USG did not differ significantly, while the differences in the studied distances between structures were statistically significant. The width of FS in HF\u2010USG was significantly higher than hair shafts thickness in trichoscopy.<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusions<\/jats:title><jats:p>HF\u2010USG (20MHz) due to the possibility of visualization of FS can be a valuable complement to the range of non\u2010invasive diagnostic procedures used in evaluation of the scalp.<\/jats:p><\/jats:sec>","DOI":"10.1111\/srt.12930","type":"journal-article","created":{"date-parts":[[2020,7,21]],"date-time":"2020-07-21T05:45:15Z","timestamp":1595310315000},"page":"201-207","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":12,"title":["High\u2010frequency ultrasonography of the scalp \u2010 Comparison of ultrasound and trichoscopic images in healthy individuals"],"prefix":"10.1111","volume":"27","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-7914-8694","authenticated-orcid":false,"given":"Dominik","family":"Mikiel","sequence":"first","affiliation":[{"name":"Department of Dermatology Poznan University of Medical Sciences Poznan Poland"},{"name":"Department of Skin Diseases Provincial Hospital in Poznan Poznan Poland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-9531-7358","authenticated-orcid":false,"given":"Adriana","family":"Pola\u0144ska","sequence":"additional","affiliation":[{"name":"Department of Dermatology and Venerology Poznan University Of Medical Sciences Poznan Poland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ryszard","family":"\u017baba","sequence":"additional","affiliation":[{"name":"Department of Dermatology and Venerology Poznan University Of Medical Sciences Poznan Poland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Zygmunt","family":"Adamski","sequence":"additional","affiliation":[{"name":"Department of Dermatology Poznan University of Medical Sciences Poznan Poland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Aleksandra","family":"Da\u0144czak\u2010Pazdrowska","sequence":"additional","affiliation":[{"name":"Department of Dermatology Poznan University of Medical Sciences Poznan Poland"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2020,7,20]]},"reference":[{"key":"e_1_2_5_2_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.jaad.2014.04.070"},{"key":"e_1_2_5_3_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.jaad.2014.05.008"},{"key":"e_1_2_5_4_1","doi-asserted-by":"publisher","DOI":"10.1007\/s00403-016-1657-4"},{"key":"e_1_2_5_5_1","doi-asserted-by":"publisher","DOI":"10.5114\/ada.2017.72457"},{"key":"e_1_2_5_6_1","first-page":"1","article-title":"Ultrasound characteristics of the hair follicles and tracts, sebaceous glans, montgomery glands, apocrine glands and arrestor pili muscles","volume":"9999","author":"Wortsman X","year":"2018","journal-title":"J Ultrasound Med"},{"key":"e_1_2_5_7_1","doi-asserted-by":"publisher","DOI":"10.7863\/ultra.33.7.1265"},{"key":"e_1_2_5_8_1","doi-asserted-by":"publisher","DOI":"10.1259\/bjr\/22636640"},{"key":"e_1_2_5_9_1","doi-asserted-by":"publisher","DOI":"10.1038\/sj.jidsymp.5650051"},{"key":"e_1_2_5_10_1","first-page":"14","article-title":"Trichoscopy (hair and scalp videodermoscopy) in the healthy female. 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