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CO2 laser: my number one popular laser 二氧化碳激光:我最喜欢的激光
Shanghai International Conference on Laser Medicine and Surgery Pub Date : 2005-07-25 DOI: 10.1117/12.639089
N. Nimsakul
{"title":"CO2 laser: my number one popular laser","authors":"N. Nimsakul","doi":"10.1117/12.639089","DOIUrl":"https://doi.org/10.1117/12.639089","url":null,"abstract":"The author with long experiences in using many kinds of laser since 1977, gives overall evaluation of hard ware and soft ware development and applications, and comes to the conclusion that CO2 laser is the number one popular laser in his practice.","PeriodicalId":325950,"journal":{"name":"Shanghai International Conference on Laser Medicine and Surgery","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-07-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114871454","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Treatment of condylomata acuminata with Ho:YAG laser Ho:YAG激光治疗尖锐湿疣
Shanghai International Conference on Laser Medicine and Surgery Pub Date : 2005-07-25 DOI: 10.1117/12.639247
Hongmin Shi, Jing Zhu, Meijue Zhang
{"title":"Treatment of condylomata acuminata with Ho:YAG laser","authors":"Hongmin Shi, Jing Zhu, Meijue Zhang","doi":"10.1117/12.639247","DOIUrl":"https://doi.org/10.1117/12.639247","url":null,"abstract":"Objective: The purpose of this study to evaluate the effectiveness of Ho: YAG laser irradiation in treatment of condylomata acuminata. Methods: 1025 patients of condylomata acuminata, in which the lesions of 620 patients were interior of different lacuna, the lesions in 79 patients were huge (the diameter of lesion is over than 5cm), and 26 patients were pregnant, were treated with Ho:YAG laser (0.5-0.8J/pulse, 5-15 pulses/sec) to melt all the lesions. Results: All lesions in 1025 patients were removed after one laser treatment. The recrudescent and regenerative lesions could be removed completely after repeated treatment. No scarring and stricture on the peristome of the urethra was observed. No abortion, premature delivery and other syndrome were occurred among the total 26 pregnant patients. Conclusion: The technique of treatment of condylomata acuminata with Ho:YAG laser is an effective and safe therapeutics with the characteristic of better function of the homeostasis, shorter period of the concrescence and easy to operate.","PeriodicalId":325950,"journal":{"name":"Shanghai International Conference on Laser Medicine and Surgery","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-07-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127463583","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Research of ALA combined with HpD-PDT which induced S180 ascitic tumor cells, death, or apoptosis on cytology ALA联合HpD-PDT诱导S180腹水肿瘤细胞死亡或凋亡的细胞学研究
Shanghai International Conference on Laser Medicine and Surgery Pub Date : 2005-07-25 DOI: 10.1117/12.639225
Jing Zhu, Min Yan, Hui-guo Zhang, Enling Li, Hongyu Luo
{"title":"Research of ALA combined with HpD-PDT which induced S180 ascitic tumor cells, death, or apoptosis on cytology","authors":"Jing Zhu, Min Yan, Hui-guo Zhang, Enling Li, Hongyu Luo","doi":"10.1117/12.639225","DOIUrl":"https://doi.org/10.1117/12.639225","url":null,"abstract":"Objective: To ascertain the adequate dosage of ALA combined with HpD-PDT which induced tumor cell death or apoptosis on cytology. And to study the different effect of ALA-PDT and HPD-PDT used only. Methods: Rat ascitic tumor cells(S180) were randomly divided into several groups and incubated with ALA (20μg/ml, 40μg/ml, 80μg/ml, 160μg/ml), HPD (2.5μg/ml, 5μg/ml, 10μg/ml) and their combination dosages. 630nm light (total output 2W) was delivered to tumor cells at a constant fluence rate: 200mw/cm2 and a constant irradiated time period: 20 minutes. We set 3 groups (no photosensitizers or no irradiation or neither) to be the control groups. We used inversion microscopy to observe the morphological change of tumor cells and flow cytometry technology to detect the death or apoptosis of tumor cells during the experiment. Results: After irradiated with 630nm light on 20 minutes, S180 tumor cells incubated with the combination dosage of ALA 40μg/ml and HPD2.5μg/ml were induced highest rate of apoptosis. The rate of cells' early apoptosis was 2.54%, while the late apoptosis was 95.10% Conclusion: The combination dosage of ALA 40μg/ml and HPD2.5μg/ml (25% of constant dosage) used in the PDT treatment was the most adequate dosage on cytology.","PeriodicalId":325950,"journal":{"name":"Shanghai International Conference on Laser Medicine and Surgery","volume":"63 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-07-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126661925","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
The analysis on effect of oral mucoid cyst treated by Ho:YAG laser Ho:YAG激光治疗口腔粘液囊肿的疗效分析
Shanghai International Conference on Laser Medicine and Surgery Pub Date : 2005-07-25 DOI: 10.1117/12.639373
Lin Zhou, Jing Zhou, Hongmin Shi
{"title":"The analysis on effect of oral mucoid cyst treated by Ho:YAG laser","authors":"Lin Zhou, Jing Zhou, Hongmin Shi","doi":"10.1117/12.639373","DOIUrl":"https://doi.org/10.1117/12.639373","url":null,"abstract":"Objective: To observe the Effect of Oral Mucoid Cyst Treated by Ho:YAG Laser. Methods: The patients suffering from oral mucoid cyst were treated by Ho:YAG laser, which energy per pulse is 0.5j, pulse per second 5~15Hz, average power 2.5~7.5w. Result: Among all the patients were cured for one time. Conclusion: The technique of treatment of oral mucoid cyst with Ho:YAG laser is an effect and safe thearapeutics with the characteristics of excellent homeostasis, improved visualization, minimal thermal damage to surrounding tissue, shorter period of recovery and easy to operate. The total effect of Ho:YAG laser is better than CO2 laser and Nd:YAG laser.","PeriodicalId":325950,"journal":{"name":"Shanghai International Conference on Laser Medicine and Surgery","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-07-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128486051","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
The clinical application of laser in otorhinolaryngology 激光在耳鼻喉科的临床应用
Shanghai International Conference on Laser Medicine and Surgery Pub Date : 2005-07-25 DOI: 10.1117/12.639306
Guozhen Meng, Zhao Meng, Zhi Hua Zhang
{"title":"The clinical application of laser in otorhinolaryngology","authors":"Guozhen Meng, Zhao Meng, Zhi Hua Zhang","doi":"10.1117/12.639306","DOIUrl":"https://doi.org/10.1117/12.639306","url":null,"abstract":"Objective: The paper presented the current application of laser in Otolaryngology in our hospital. Methods: We have applied the carbon dioxide, the YAG, the He-Ne and the Ho:YAG lasers to coagulate or vaporize treated Otolaryngology disease. Results: After treatment, we have a satisfying result. Conclusion: The paper presented the current application of laser respectively in otology, rhinology and pharynolaryngology and some representative of the treated diseases. It also demonstrated that long-term effectiveness of some diseases, such as allergic rhinitis and laryngeal stenosis treated by laser was not satisfying and further studies were expected, laser excision of tonsile was only used in the cases which traditional tonsillectomy was not available. Therefore, to improve clinical laser application greatly, further more research works and cooprations between investors of laser instrument and surgeons of oto-laryngology were necessary. Theory and Clinics of laser application should be improved also.","PeriodicalId":325950,"journal":{"name":"Shanghai International Conference on Laser Medicine and Surgery","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-07-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129464032","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Metabolism of oral ALA combined small dose HPD in the small rat glioma 口服ALA联合小剂量HPD在小鼠胶质瘤中的代谢
Shanghai International Conference on Laser Medicine and Surgery Pub Date : 2005-07-25 DOI: 10.1117/12.639242
Yu Wang, Jing Zhu, Hui-guo Zhang, Ming Yan, Liping Lu
{"title":"Metabolism of oral ALA combined small dose HPD in the small rat glioma","authors":"Yu Wang, Jing Zhu, Hui-guo Zhang, Ming Yan, Liping Lu","doi":"10.1117/12.639242","DOIUrl":"https://doi.org/10.1117/12.639242","url":null,"abstract":"Objective: Research on the metabolism of oral ALA combined small dose HPD in the small rat glioma to find the optimal oral dose and diagnostic time for the ALA-photodynamic diagnosis and therapy of brain glioma. Methods: Measure the fluorescence spectra of tumor in the treatment groups and control group and of brain tissue of no-tumor group with different doses of ALA taken orally combined injected small dose HPD and different time before and after take ALA when irradiated by laser. We analyzed the spectrum of fluorescence of every groups with optical multichannel analyzer (OMA) and compared it each other. Result: The maximum ratio (Itumor/Inomal) of fluorescence was obtained at 60mg/kg of ALA taken orally and 6-8h after ALA taken. Conclusion: The optimal oral dose is 60mg/kg of ALA and the optimal measure time is 6-8 hours after ALA taken.","PeriodicalId":325950,"journal":{"name":"Shanghai International Conference on Laser Medicine and Surgery","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-07-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115028151","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Advances in endonasal low intensity laser irradiation therapy 鼻内低强度激光治疗的研究进展
Shanghai International Conference on Laser Medicine and Surgery Pub Date : 2005-07-25 DOI: 10.1117/12.639314
Jianling Jiao, T. Liu, Jiang Liu, Li-ping Cui, Song-hao Liu
{"title":"Advances in endonasal low intensity laser irradiation therapy","authors":"Jianling Jiao, T. Liu, Jiang Liu, Li-ping Cui, Song-hao Liu","doi":"10.1117/12.639314","DOIUrl":"https://doi.org/10.1117/12.639314","url":null,"abstract":"Endonasal low intensity laser therapy (ELILT) began in China in 1998. Now in China it is widely applied to treat hyperlipidemia and brain diseases such as Alzheimer's disease, Parkinson's disease, insomnia, poststroke depression, intractable headache, ache in head or face, cerebral thrombosis, acute ischemic cerebrovascular disease, migraine, brain lesion and mild cognitive impairment. There are four pathways mediating EILILT, Yangming channel, autonomic nervous systems and blood cells. Two unhealth acupoints of Yangming channal inside nose might mediate the one as is low intensity laser acupuncture. Unbalance autonomic nervous systems might be modulated. Blood cells might mediate the one as is intravascular low intensity laser therapy. These three pathways are integrated in ELILT so that serum amyloid β protein, malformation rate of erythrocyte, CCK-8, the level of viscosity at lower shear rates and hematocrit, or serum lipid might decrease, and melanin production, SOD activity or β endorphin might increase after ELILT treatment. These results indicate ELILT might work, but it need to be verified by randomized placebo-controlled trial.","PeriodicalId":325950,"journal":{"name":"Shanghai International Conference on Laser Medicine and Surgery","volume":"40 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-07-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121846393","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 4
The influence of 630nm semiconductor laser irradiation on rat S180 ascitic tumor cells without photosensitizers 630nm半导体激光照射对无光敏剂大鼠S180腹水肿瘤细胞的影响
Shanghai International Conference on Laser Medicine and Surgery Pub Date : 2005-07-25 DOI: 10.1117/12.639207
Min Yan, Jing Zhu, Hui-guo Zhang, Enling Li, Hongyu Luo
{"title":"The influence of 630nm semiconductor laser irradiation on rat S180 ascitic tumor cells without photosensitizers","authors":"Min Yan, Jing Zhu, Hui-guo Zhang, Enling Li, Hongyu Luo","doi":"10.1117/12.639207","DOIUrl":"https://doi.org/10.1117/12.639207","url":null,"abstract":"Objective: To study the influence of 630nm semiconductor laser irradiation on rat ascetic tumor cells without photosensitizers. Methods: In this work, rat ascitic tumor cells (S180) were incubation with no photosensitizers. 630nm light (total output 2W) was delivered to tumor cells at different fluence rate: 100, 200, 250mw/cm2 . According to each fluence rate, S180 tumor cells were divided into 5 groups, which were irradiated with various time periods: 20, 15, 10, 5, 3min. In all cases, S180 tumor cells were taken photos. We use the morphology and flow cytometry technique to investigate the apoptosis of tumor cells during the experiment. Results: 1. No obvious morphological difference between test groups and control groups at various time periods during the experiment. 2. No obvious cell apoptosis difference between test groups and control groups using FCM. Conclusion: After irradiated with 630nm semiconductor laser light, rat ascitic tumor cells (S180) with no photosensitizers incubation were not obviously killed or induced apoptosis.","PeriodicalId":325950,"journal":{"name":"Shanghai International Conference on Laser Medicine and Surgery","volume":"38 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-07-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122284155","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Biological effects on canine bladder by Nd:YAP laser: an experimental study Nd:YAP激光对犬膀胱生物效应的实验研究
Shanghai International Conference on Laser Medicine and Surgery Pub Date : 2005-07-01 DOI: 10.1117/12.639206
Hui-guo Zhang, Meijue Zhang, Jing Zhu
{"title":"Biological effects on canine bladder by Nd:YAP laser: an experimental study","authors":"Hui-guo Zhang, Meijue Zhang, Jing Zhu","doi":"10.1117/12.639206","DOIUrl":"https://doi.org/10.1117/12.639206","url":null,"abstract":"Objective: To observe the difference of biological effects on canine bladder by Nd:YAP laser with different power and different irradiation time. Methods: The canine bladder was irradiated with different power and different irradiation time. The effects of ablation and thermal coagulation in different laser settings were observed. The damage scale was evaluated macroscopically, with microscope and with electroscope. Results: The thermal coagulation effects is mostly and ablation effects is subordinate on the canine bladder by irradiation of Nd:YAP laser on. Pathology vision shows the thermal coagulation dose on perforation is 10W, 6s, 20W, 4s; 30W, 3s; 40W, 2s; 50-60W, 1s; the dose of whole audience wear through is 10W, 6s; 20W, 4s; 30W, 3s; 40W, 2s; 50-60W, 1s. Conclusions: The thermal coagulation effects is mostly and ablation effects is subordinate on biological effect of Nd:YAP laser on canine bladder. The better safety dose is power 10W, duration time less than 6s; power 20W, duration time less than 4s. power 30W, time less than 3s. power 40W, time less than 2s. The ablation and thermal coagulation effects of Nd:YAP laser on canine bladder is homocercal of power and time.","PeriodicalId":325950,"journal":{"name":"Shanghai International Conference on Laser Medicine and Surgery","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130887741","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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