Argon laser treatment of superficial vascular lesions in children.

abstract：BACKGROUND AND OBJECTIVE:The heat balance equation is central to modeling laser vaporization of tissue. Because about 70% of tissue is water, energy loss due to water vaporization becomes an important consideration in modeling. In this study, the rate and pattern of water vaporization from various animal tissues studie...

journal_title：Lasers in surgery and medicine

authors： Ramachandran T,Sreenivasan K,Sivakumar R

更新日期：1996-01-01 00:00:00

abstract：:Laser photocoagulation has proven to be valuable in the treatment of port-wine stains. In this application, the minimal blanching technique is used as an indicator of suitable dosage since it has been demonstrated that the immediate appearance a white mark is required to achieve permanent blanching a few months later....

journal_title：Lasers in surgery and medicine

authors： Mordon S,Beacco C,Rotteleur G,Brunetaud JM

更新日期：1993-01-01 00:00:00

abstract：BACKGROUND AND OBJECTIVE:We reported the use of Holmium-YAG laser in the management of a foreign body impacted in the esophagus. STUDY DESIGN/PATIENTS AND METHODS:Esophagoscopy was performed on a man with a denture impacted in the esophagus. The denture was disimpacted into the stomach and fractured with Holmium-YAG l...

journal_title：Lasers in surgery and medicine

authors： Lam YH,Ng EK,Chung SC,Li AK

更新日期：1997-01-01 00:00:00

abstract：BACKGROUND AND OBJECTIVES:Carbon dioxide (CO(2)) laser resurfacing is primarily performed on photodamaged facial skin where patients are further exposed to ultraviolet radiation (UVR) postoperatively. We examined whether pre- and postoperative UVR influences the development of CO(2) laser-induced side effects. STUDY D...

journal_title：Lasers in surgery and medicine

authors： Hedelund L,Haedersdal M,Egekvist H,Heidenheim M,Hans CW,Poulsen T

更新日期：2005-02-01 00:00:00

abstract：BACKGROUND AND OBJECTIVE:In previous investigations, small variations in the energy densities of low level light therapy (LLLT) were found to produce significant differences in the proliferation of resting T-lymphocytes in vitro. Pulsing these cells with mitogen in addition to laser therapy produced inhibitory effects ...

journal_title：Lasers in surgery and medicine

authors： Agaiby AD,Ghali LR,Wilson R,Dyson M

更新日期：2000-01-01 00:00:00

abstract：BACKGROUND AND OBJECTIVE:Although the empirical characteristics of ArF excimer laser corneal ablation have been well documented, the exact ablation mechanisms are not well understood. The present paper reports a quantitative analysis of corneal ablation plumes using in situ time resolved laser light scattering and Rama...

journal_title：Lasers in surgery and medicine

authors： Hahn DW,Ediger MN,Pettit GH

更新日期：1995-01-01 00:00:00

abstract：BACKGROUND AND OBJECTIVES:Hypervascular skin lesions (HVSL) are treated with medical lasers characterized by a variety of parameters such as wavelength lambda, pulse duration t(p), and radiant exposure E that can be adjusted for different pathology and blood vessel size. Treatment parameters have been optimized assumin...

journal_title：Lasers in surgery and medicine

authors： Kimel S,Choi B,Svaasand LO,Lotfi J,Viator JA,Nelson JS

更新日期：2005-04-01 00:00:00

abstract：:To date, there are two fairly well-established alternatives for laser-induced shock-wave lithotripsy in clinical practice. The Q-switched Nd:YAG laser is distinguished by the high-stone selectivity of its coupler systems. The necessity of a coupler system and its fairly small conversion rate of light energy into mecha...

journal_title：Lasers in surgery and medicine

authors： Thomas S,Pensel J,Engelhardt R,Meyer W,Hofstetter AG

更新日期：1988-01-01 00:00:00

abstract：:partial ciliary processes argon laser photocoagulation (PCLP) in the management of glaucoma has been the subject of a carefully conducted, prospective 5+-year clinical trial in 22 eyes of 20 patients. The mean intraocular pressure (IOP) +/- SD was significantly lower (15.5 +/- 3.6 mm Hg) than before the procedure (29....

journal_title：Lasers in surgery and medicine

authors： Lee PF,Shihab Z,Eberle M

更新日期：1980-01-01 00:00:00

abstract：BACKGROUND AND OBJECTIVE:Objectively measure and compare postoperative collagen thermal damage and subsequent new collagen synthesis after cutaneous laser resurfacing using two carbon dioxide laser systems. STUDY DESIGN/MATERIALS AND METHODS:We created 240 resurfacing wounds on eight piglets with scanned and short-pul...

journal_title：Lasers in surgery and medicine

authors： Kuo T,Speyer MT,Ries WR,Reinisch L

更新日期：1998-01-01 00:00:00

abstract：BACKGROUND AND OBJECTIVES:Terawatt (TW) lasers have become commonplace since the development of the chirped-pulse amplification method using Ti:sapphire and Nd:glass laser rods. We have measured the minimum visible lesion (MVL) thresholds for porcine1The animals involved in this study were procured, maintained, and use...

journal_title：Lasers in surgery and medicine

authors： Kumru SS,Cain CP,Noojin GD,Cooper MF,Imholte ML,Stolarski DJ,Cox DD,Crane CC,Rockwell BA

更新日期：2005-07-01 00:00:00

abstract：BACKGROUND AND OBJECTIVES:As a potential therapy for malignant glioma, we tested the phthalocyanine photosensitizer Pc 4 for: (1) rapid clearance from the vasculature, (2) specificity for glioma, and (3) tumoricidal photosensitizing capability. STUDY DESIGN/MATERIALS AND METHODS:Parenchymal injection of U87 cells into...

journal_title：Lasers in surgery and medicine

authors： George JE 3rd,Ahmad Y,Varghai D,Li X,Berlin J,Jackowe D,Jungermann M,Wolfe MS,Lilge L,Totonchi A,Morris RL,Peterson A,Lust WD,Kenney ME,Hoppel CL,Sun J,Oleinick NL,Dean D

更新日期：2005-06-01 00:00:00

abstract：BACKGROUND AND OBJECTIVE:The purpose of this investigation was to evaluate: 1. thermal events during laser irradiation @2.1 microns of the pulp; 2. whether these effects are adequately modeled using an empty pulp chamber/root canal. STUDY DESIGN/MATERIALS AND METHODS:In extracted human teeth, pulpal access was prepare...

journal_title：Lasers in surgery and medicine

authors： Chang JC,Wilder-Smith P

更新日期：1998-01-01 00:00:00

abstract：BACKGROUND AND OBJECTIVE:Wound-healing delays caused by lateral thermal damage to tissue remain a drawback of CO(2) surgical lasers. This study compares the thermal damage and wound-healing properties of a 7.5-micros pulsed CO(2) laser with scalpel and continuous wave (CW) CO(2) laser incisions. STUDY DESIGN/MATERIALS...

journal_title：Lasers in surgery and medicine

authors： Sanders DL,Reinisch L

更新日期：2000-01-01 00:00:00

abstract：BACKGROUND AND OBJECTIVES:Porcine skin is a widely used model in diffusion studies, but its usefulness for laser-assisted drug delivery (LADD) has not been evaluated in comparison with human skin. This study compared porcine and human skin in ex vivo LADD diffusion studies. STUDY DESIGN/MATERIALS AND METHODS:Ex vivo a...

journal_title：Lasers in surgery and medicine

authors： Rosenberg LK,Bagger C,Janfelt C,Haedersdal M,Olesen UH,Lerche CM

更新日期：2020-11-08 00:00:00

abstract：:Heat-induced oxygen tension changes in RIF-1 tumors in C3H male mice were analyzed in an attempt to correlate these changes with tumor response to Nd:YAG laser heating. A low power, microprocessor-controlled Nd:YAG laser was used to superficially heat 250-300 mm3 tumors to base temperatures of 44, 45, 46, or 48 degree...

journal_title：Lasers in surgery and medicine

authors： Fahy AK,Waldow SM

更新日期：1993-01-01 00:00:00

abstract：:The healing of standardized fracture of rabbit radius was expedited as a result of treatment with low-power CO2 laser irradiation. Observation with transmission electron microscope revealed the following favorable effects of CO2 laser irradiation: The red blood cells were induced to disintegrate, thus promoting the ab...

journal_title：Lasers in surgery and medicine

authors： Tang XM,Chai BP

更新日期：1986-01-01 00:00:00

abstract：:New instruments to facilitate laser operations are presented. These devices are based on the Kocher bronchocoele sound and are useful as dissecting tools and optical backstops to prevent iatrogenic injury. ...

journal_title：Lasers in surgery and medicine

authors： Lanzafame RJ

更新日期：1990-01-01 00:00:00

abstract：:The effects of laser energy on articular cartilage were studied utilizing the neodymium YAG laser. Partial-thickness cartilage defects were surgically attempted in the femoral condyles of knee joints in guinea pigs. The defects were exposed to laser energy of varying intensities [group I, 25 J (5 W X 5 sec); group II,...

journal_title：Lasers in surgery and medicine

authors： Schultz RJ,Krishnamurthy S,Thelmo W,Rodriguez JE,Harvey G

更新日期：1985-01-01 00:00:00

abstract：BACKGROUND AND OBJECTIVES:To determine the true efficacy of the 308-nm excimer laser for the treatment of vitiligo, while taking into account confounding factors such as anatomic site of treatment, age, sex, skin type, MED, and duration of evolution of the vitiligo. STUDY DESIGN/MATERIALS AND METHODS:Thirty-five patie...

journal_title：Lasers in surgery and medicine

authors： Ostovari N,Passeron T,Zakaria W,Fontas E,Larouy JC,Blot JF,Lacour JP,Ortonne JP

更新日期：2004-01-01 00:00:00

abstract：BACKGROUND AND OBJECTIVE:Despite laser applications targetted toward tonsillar tissue, there has been no characterization of underlying optical and thermal events during laser irradiation of tonsillar tissue. STUDY DESIGN/MATERIALS AND METHODS:The optical properties of canine and human tonsils were determined at 805 n...

journal_title：Lasers in surgery and medicine

authors： Shah RK,Nemati B,Wang LV,Shapshay SM

更新日期：2001-01-01 00:00:00

abstract：BACKGROUND AND OBJECTIVE:Postoperative scarring after thyroidectomy is a problem for both patients and clinicians. Recently, both non-ablative and ablative fractional laser (NFL and AFL) systems have attracted attention as potential therapies for the revision of thyroidectomy scars. The present split-scar study was des...

journal_title：Lasers in surgery and medicine

authors： Shin JU,Gantsetseg D,Jung JY,Jung I,Shin S,Lee JH

更新日期：2014-12-01 00:00:00

abstract：BACKGROUND AND OBJECTIVES:CO2 laser cordectomy has been the workhorse of laser surgery for early glottic squamous cell carcinoma (GSCC) since the early 1970s. During the last decades, potassium titanyl phosphate (KTP) laser surgery for early GSCC gained popularity, introducing the tumor ablation technique. Yet, there a...

journal_title：Lasers in surgery and medicine

authors： Lahav Y,Cohen O,Shapira-Galitz Y,Halperin D,Shoffel-Havakuk H

更新日期：2020-09-01 00:00:00

abstract：BACKGROUND AND OBJECTIVE:Verteporfin is a new photosensitizer with short-term skin photosensitivity. The objective of this preclinical study was to find the light dose that effectively ablates canine esophageal mucosa when delivered 30 minutes after Verteporfin injection. STUDY DESIGN/MATERIALS AND METHODS:Verteporfin...

journal_title：Lasers in surgery and medicine

authors： Panjehpour M,DeNovo RC,Petersen MG,Overholt BF,Bower R,Rubinchik V,Kelly B

更新日期：2002-01-01 00:00:00

abstract：BACKGROUND AND OBJECTIVE:Moraxella catarrhalis is a significant cause of pediatric otitis media (OM), which is the most prevalent bacterial infection in children and primary reason for antibiotic administration in this population. Moreover, biofilm formation has been implicated as a primary mechanism of chronic or recu...

journal_title：Lasers in surgery and medicine

authors： Luke-Marshall NR,Mang TS,Hansen LA,Campagnari AA

更新日期：2014-11-01 00:00:00

abstract：:Er-YAG (2.9 microns, 200 microseconds pulsewidth) and Ho-YAG (2.12 microns, 250 microseconds pulsewidth) lasers were used to irradiate bovine crystalline lenses. Mass ablated increased with increasing fluence for both lasers and was greater for the Er-YAG than the Ho-YAG laser at all fluences. The mass loss vs. fluenc...

journal_title：Lasers in surgery and medicine

authors： Ross BS,Puliafito CA

更新日期：1994-01-01 00:00:00

abstract：BACKGROUND AND OBJECTIVE:The main factors in photodynamic therapy (PDT) are: photosensitizer retention, photon absorption, and oxygen supply. Each factor has its unique set of problems that poses limitation to the treatment. Both light delivery and oxygen supply are significant bottlenecks in PDT. Vascular closure duri...

journal_title：Lasers in surgery and medicine

authors： Yang L,Wei Y,Xing D,Chen Q

更新日期：2010-09-01 00:00:00

abstract：BACKGROUND AND OBJECTIVES:Helicobacter pylori (HP) is an endemic pathogenic bacterium causing gastritis and gastroduodenal ulceration in humans and is linked to the development of gastric malignancies. These first human in vivo studies investigated the photoeradication of HP using laser and white light. STUDY DESIGN/M...

journal_title：Lasers in surgery and medicine

authors： Wilder-Smith CH,Wilder-Smith P,Grosjean P,van den Bergh H,Woodtli A,Monnier P,Dorta G,Meister F,Wagnières G

更新日期：2002-01-01 00:00:00

abstract：BACKGROUND:Photodynamic therapy (PDT) using topical aminolevulinic acid (ALA) depends on local drug uptake, metabolism to porphyrins, and depth of light penetration using different wavelengths. Topical ALA-PDT has limited depth of drug penetration. We studied induced porphyrin distribution and PDT after intradermal ALA...

journal_title：Lasers in surgery and medicine

authors： Sakamoto FH,Doukas AG,Farinelli WA,Tannous Z,Su Y,Smith NA,Zurakowski D,Anderson RR

更新日期：2011-09-01 00:00:00

abstract：:We examined the biostimulating effects of helium-neon laser radiation (HeNe; 632.8 nm), pulsed infrared laser radiation (IR; 904 nm), and the two combined on skin wound healing in New Zealand white rabbits. Seventy-two rabbits received either 1) no exposure, 2) 1.65 J/cm2 HeNe, 3) 8.25 J/cm2 pulsed IR, or 4) both HeNe...

journal_title：Lasers in surgery and medicine

authors： Braverman B,McCarthy RJ,Ivankovich AD,Forde DE,Overfield M,Bapna MS

更新日期：1989-01-01 00:00:00