High frequency ultrasound - atopic dermatitis staging
Description
The data set includes images of 78 patients diagnosed with AD following Hanifin and Rajka criteria, who were admitted due to their exacerbation to the Department of Dermatology Poznan University of Medical Sciences. The HFUS data were acquired using DermaScan C ver. C (Dermascan C; Hadsund, Denmark), equipped with a 20 MHz linear probe. Color-coded B-mode images were obtained within the antecubital fossa (as a representative region) in all subjects. The axial and lateral resolutions were 80 and 200 um, respectively. The clinical evaluation (dermatologist with 15-years experience) was based on the IGA score within the antecubital fossa, being the predilection site for AD. The IGA scale is 5 point validated scale composed of morpholigical descripion of the severity of skin lesions: 0—Not affected 1—Little affected 2—Mild 3—Moderate 4—Severe The data were manually labeled (the IGA scores were provided) by two experts (over 15 years of experience in HFUS imaging in dermatology), who analyzed them three and two times, respectively. The first label is provided by Expert 1 and is based on the visual assessment of the affected skin area and interview during the patient’s visits (before and after treatment) - the gold standard in AD diagnosis, and HFUS images in unclear cases. The resulting labels are ground truth in our experiments. The remaining four labels are provided by Expert 1 (Exp1) and Expert 2 (Exp2), who were blinded without observation of the patient’s clinical state. The experts assessed each image at a two-week interval (14 March and 28 March - Expert 1, 16 March and 30 March) . The repository contains: Image Data Folder: This folder includes High-Frequency Ultrasound (HFUS) images. Image filenames follow the format: patientID_studyID.png. Metadata.xls: This file contains expert evaluations using the Investigator Global Assessment (IGA) recorded at multiple time points, along with annotations indicating whether clinical improvement was observed over time. The dataset is connected with the work: Czajkowska, J., Polańska, A., Slian, A. et al. The usefulness of automated high frequency ultrasound image analysis in atopic dermatitis staging. Sci Rep 15, 163 (2025). https://doi.org/10.1038/s41598-024-84051-6 All the experiments were performed following the protocol approved by the Bioethics Committee at the Poznan University of Medical Sciences, under the reference number 299/11 on 14th April 2011. Informed consent was obtained from all subjects involved in the study.
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Institutions
- Uniwersytet Medyczny imienia Karola Marcinkowskiego w Poznaniu
- Politechnika Slaska