Evaluation of a Novel Microfocused Ultrasound with Three-Dimensional Digital Imaging for Facial Tightening: A Prospective, Randomized, Controlled Trial

作者：Zhu, Jiafang; Han, Yue; Liu, Ying; Chang, Rui; Gao, Wei; Gong, Xia; Zhu, Yijia; Shang, Ying; Shen, Lingyue; Yu, Wenxin; Lyu, Dongze^*; Lin, Xiaoxi^*

来源：Dermatology and Therapy, 2024, 14(1): 233-249.

DOI：10.1007/s13555-023-01078-9

• Facial contours
• Microfocused ultrasound
• MicroUltra
• Tightening
• Tissue remodeling
• Volumetric measurement

Background: The excellent efficacy is mitigated by the limited safety profile of microfocused ultrasound procedures.ObjectiveWe sought to assess the safety and tightening efficacy of a novel microfocused ultrasound.Methods: The randomized middle and lower face and submental region of the participants were treated with the novel device using the following transducers: M4.5, D4.5, M3.0, and D3.0. Improvement in paired comparison of pretreatment and posttreatment photographs, three-dimensional (3D) volumetric assessments, skin thickness measured by B-ultrasonography, and skin photoaging parameters were evaluated. Adverse events and patient satisfaction were also recorded.Results: A total of 20 participants (20 female) were enrolled. Fourteen of 20 participants (70%) were judged to show clinically significant facial tightening during 3-month follow-up (P < 0.05). The mean volumetric change in the lower face, as quantitatively assessed after 3 months was -0.29 mL compared with +0.42 mL on the control side (P < 0.05). The VAS pain score was 3.00 +/- 1.19 without any oral or intramuscular anesthesia.Conclusions: A small sample size, lack of clinical scales, and impersonalized treatment parameters. The novel microfocused ultrasound appears to be a safe and effective modality for lower-face tightening.

• 单位
  上海交通大学; 南方医科大学