High-Frequency Ultrasonography And Scoring Of Acne At 20 And 50 Mhz

Effective management of acne vulgaris requires accurate assessment. High-frequency ultrasonography (HF-USG) provides an objective and non-invasive evaluation in comparison with naked-eye evaluation or pathological examination. To explore the ultrasonographic features of acne vulgaris and assess the role of HF-USG in the classification of acne. a prospective study was performed in acne patients in the period of August to November 2019. This study was approved by the Medical Ethics Committee of Perking Union Medical College Hospital. The inclusion criteria were lacking topical treatment for one month and systemic therapy for six months before the consultation. The patients were clinically classified in their severity by two experienced dermatologists independently. The severest lesion of each patient examined by HF-USG at 20 MHz and 50 MHz, and then evaluated by two physicians. Statistical analysis used Chi-square and Kappa tests and significance was set at p <0.01.