{"title":"矢量化面部紧肤:利用高强度、高频率、平行超声波束的 Thermal Thread Technique™ 研究。","authors":"Kentaro Oku MD","doi":"10.1002/lsm.23771","DOIUrl":null,"url":null,"abstract":"<div>\n \n \n <section>\n \n <h3> Background</h3>\n \n <p>Facial skin tightening with wrinkle/fine line reduction is a highly demanded procedure in the aesthetic field. Although there are studies focused on the types of energy sources, the total amount of thermal energy, and the affected depth, there have been no reports examining the relationship between the shape of thermal energy and the directivity of skin tightening. We have developed a specific method to apply thermal energy to the dermis in continuous parallel lines, resembling a thread, perpendicular to the Relaxed Skin Tension Lines (RSTL) for vectorized collagen contraction using synchronous ultrasound parallel beam technology.</p>\n </section>\n \n <section>\n \n <h3> Objective</h3>\n \n <p>To evaluate the safety, tightening capability, and directivity of the Thermal Thread Technique™ utilizing a high-intensity, high-frequency, parallel ultrasound beam.</p>\n </section>\n \n <section>\n \n <h3> Materials and Methods</h3>\n \n <p>A total of 34 cases, both males and females aged between 30 and 70 years with Fitzpatrick skin types 2–4, exhibiting mild to moderate skin laxity, participated. All subjects received one treatment using the Thermal Thread Technique™ utilizing high-intensity, high-frequency parallel ultrasound beam to cover the full face and submental area. 3D clinical images were captured before, 8 weeks, and 24 weeks after the treatment. A quantitative image analysis of captured 3D images was performed to objectively measure the direction and distance of contraction.</p>\n </section>\n \n <section>\n \n <h3> Results</h3>\n \n <p>The average contraction distance from baseline (0 mm) to 8 weeks and 24 weeks posttreatment were 1.91 ± 0.61 mm (<i>p</i> < 0.001) and 1.96 ± 0.67 mm (<i>p</i> < 0.001) respectively. Regarding the contraction direction at 24 weeks posttreatment, the angle formed between the contraction direction and the base axis, which is perpendicular to the RSTL, was + 9.85° ± 32.94°. Out of 34 cases, 28 met the criteria with the angle within ±22.5° of the base axis (<i>p</i> < 0.001). The average pain score on a 0–5 scale (0 being no pain, and 5 being maximum pain) was 2.63 ± 0.78. No side effects were reported during the treatment or observation period.</p>\n </section>\n \n <section>\n \n <h3> Conclusion</h3>\n \n <p>The Thermal Thread Technique™ utilizing a high-intensity, high-frequency, parallel ultrasound beam was proven to be clinically safe and effective for vectorized facial skin tightening.</p>\n </section>\n </div>","PeriodicalId":17961,"journal":{"name":"Lasers in Surgery and Medicine","volume":"56 4","pages":"355-360"},"PeriodicalIF":2.2000,"publicationDate":"2024-02-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/lsm.23771","citationCount":"0","resultStr":"{\"title\":\"Vectorized facial skin tightening: A study on the Thermal Thread Technique™ utilizing high-intensity, high-frequency, parallel ultrasound beam\",\"authors\":\"Kentaro Oku MD\",\"doi\":\"10.1002/lsm.23771\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div>\\n \\n \\n <section>\\n \\n <h3> Background</h3>\\n \\n <p>Facial skin tightening with wrinkle/fine line reduction is a highly demanded procedure in the aesthetic field. Although there are studies focused on the types of energy sources, the total amount of thermal energy, and the affected depth, there have been no reports examining the relationship between the shape of thermal energy and the directivity of skin tightening. We have developed a specific method to apply thermal energy to the dermis in continuous parallel lines, resembling a thread, perpendicular to the Relaxed Skin Tension Lines (RSTL) for vectorized collagen contraction using synchronous ultrasound parallel beam technology.</p>\\n </section>\\n \\n <section>\\n \\n <h3> Objective</h3>\\n \\n <p>To evaluate the safety, tightening capability, and directivity of the Thermal Thread Technique™ utilizing a high-intensity, high-frequency, parallel ultrasound beam.</p>\\n </section>\\n \\n <section>\\n \\n <h3> Materials and Methods</h3>\\n \\n <p>A total of 34 cases, both males and females aged between 30 and 70 years with Fitzpatrick skin types 2–4, exhibiting mild to moderate skin laxity, participated. All subjects received one treatment using the Thermal Thread Technique™ utilizing high-intensity, high-frequency parallel ultrasound beam to cover the full face and submental area. 3D clinical images were captured before, 8 weeks, and 24 weeks after the treatment. A quantitative image analysis of captured 3D images was performed to objectively measure the direction and distance of contraction.</p>\\n </section>\\n \\n <section>\\n \\n <h3> Results</h3>\\n \\n <p>The average contraction distance from baseline (0 mm) to 8 weeks and 24 weeks posttreatment were 1.91 ± 0.61 mm (<i>p</i> < 0.001) and 1.96 ± 0.67 mm (<i>p</i> < 0.001) respectively. Regarding the contraction direction at 24 weeks posttreatment, the angle formed between the contraction direction and the base axis, which is perpendicular to the RSTL, was + 9.85° ± 32.94°. Out of 34 cases, 28 met the criteria with the angle within ±22.5° of the base axis (<i>p</i> < 0.001). The average pain score on a 0–5 scale (0 being no pain, and 5 being maximum pain) was 2.63 ± 0.78. No side effects were reported during the treatment or observation period.</p>\\n </section>\\n \\n <section>\\n \\n <h3> Conclusion</h3>\\n \\n <p>The Thermal Thread Technique™ utilizing a high-intensity, high-frequency, parallel ultrasound beam was proven to be clinically safe and effective for vectorized facial skin tightening.</p>\\n </section>\\n </div>\",\"PeriodicalId\":17961,\"journal\":{\"name\":\"Lasers in Surgery and Medicine\",\"volume\":\"56 4\",\"pages\":\"355-360\"},\"PeriodicalIF\":2.2000,\"publicationDate\":\"2024-02-27\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"https://onlinelibrary.wiley.com/doi/epdf/10.1002/lsm.23771\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Lasers in Surgery and Medicine\",\"FirstCategoryId\":\"3\",\"ListUrlMain\":\"https://onlinelibrary.wiley.com/doi/10.1002/lsm.23771\",\"RegionNum\":3,\"RegionCategory\":\"医学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"DERMATOLOGY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Lasers in Surgery and Medicine","FirstCategoryId":"3","ListUrlMain":"https://onlinelibrary.wiley.com/doi/10.1002/lsm.23771","RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"DERMATOLOGY","Score":null,"Total":0}
Vectorized facial skin tightening: A study on the Thermal Thread Technique™ utilizing high-intensity, high-frequency, parallel ultrasound beam
Background
Facial skin tightening with wrinkle/fine line reduction is a highly demanded procedure in the aesthetic field. Although there are studies focused on the types of energy sources, the total amount of thermal energy, and the affected depth, there have been no reports examining the relationship between the shape of thermal energy and the directivity of skin tightening. We have developed a specific method to apply thermal energy to the dermis in continuous parallel lines, resembling a thread, perpendicular to the Relaxed Skin Tension Lines (RSTL) for vectorized collagen contraction using synchronous ultrasound parallel beam technology.
Objective
To evaluate the safety, tightening capability, and directivity of the Thermal Thread Technique™ utilizing a high-intensity, high-frequency, parallel ultrasound beam.
Materials and Methods
A total of 34 cases, both males and females aged between 30 and 70 years with Fitzpatrick skin types 2–4, exhibiting mild to moderate skin laxity, participated. All subjects received one treatment using the Thermal Thread Technique™ utilizing high-intensity, high-frequency parallel ultrasound beam to cover the full face and submental area. 3D clinical images were captured before, 8 weeks, and 24 weeks after the treatment. A quantitative image analysis of captured 3D images was performed to objectively measure the direction and distance of contraction.
Results
The average contraction distance from baseline (0 mm) to 8 weeks and 24 weeks posttreatment were 1.91 ± 0.61 mm (p < 0.001) and 1.96 ± 0.67 mm (p < 0.001) respectively. Regarding the contraction direction at 24 weeks posttreatment, the angle formed between the contraction direction and the base axis, which is perpendicular to the RSTL, was + 9.85° ± 32.94°. Out of 34 cases, 28 met the criteria with the angle within ±22.5° of the base axis (p < 0.001). The average pain score on a 0–5 scale (0 being no pain, and 5 being maximum pain) was 2.63 ± 0.78. No side effects were reported during the treatment or observation period.
Conclusion
The Thermal Thread Technique™ utilizing a high-intensity, high-frequency, parallel ultrasound beam was proven to be clinically safe and effective for vectorized facial skin tightening.
期刊介绍:
Lasers in Surgery and Medicine publishes the highest quality research and clinical manuscripts in areas relating to the use of lasers in medicine and biology. The journal publishes basic and clinical studies on the therapeutic and diagnostic use of lasers in all the surgical and medical specialties. Contributions regarding clinical trials, new therapeutic techniques or instrumentation, laser biophysics and bioengineering, photobiology and photochemistry, outcomes research, cost-effectiveness, and other aspects of biomedicine are welcome. Using a process of rigorous yet rapid review of submitted manuscripts, findings of high scientific and medical interest are published with a minimum delay.