Monte Carlo simulations for EndoBronchial Photodynamic Therapy: the influence of variations in optical and geometrical properties and of realistic and eccentric light sources.

abstract：:Using an optically shielded fiber optic laser catheter, the amount of gas produced when firing an argon ion laser into 0.9% saline solution or blood alone and into atheromatous aorta in either a blood or 0.9% saline medium was quantitated. Energies from 0.25 to 4 joules (J) were used at powers of 2, 5, and 8 W. We fou...

journal_title：Lasers in surgery and medicine

authors： Davis GS,Bott-Silverman C,Goormastic M,Gerrity RG,Kittrell C,Feld M,Kramer JR

更新日期：1988-01-01 00:00:00

abstract：BACKGROUND AND OBJECTIVE:In coupling laser with micromanipulator through fiberoptics, the resulting diameter of the spot is limited by the laws of geometrical optics, because of the high numerical aperture (N.A.) of fiberoptic radiation. A new method for the reduction of spot size diameter is suggested. STUDY DESIGN/M...

journal_title：Lasers in surgery and medicine

authors： Logunov SL,Lemberg VG

更新日期：1995-01-01 00:00:00

abstract：BACKGROUND AND OBJECTIVE:Oral mucositis is a dose-limiting and painful side effect of radiotherapy (RT) and/or chemotherapy in cancer patients. The purpose of the present study was to analyze the effect of different protocols of laser phototherapy (LPT) on the grade of mucositis and degree of pain in patients under RT....

journal_title：Lasers in surgery and medicine

authors： Simões A,Eduardo FP,Luiz AC,Campos L,Sá PH,Cristófaro M,Marques MM,Eduardo CP

更新日期：2009-04-01 00:00:00

abstract：BACKGROUND:Primary cutaneous amyloidosis (PCA) comprises three main forms: macular, lichen, and nodular amyloidosis. The current available treatments are quite disappointing. OBJECTIVES:Assess and compare the clinical and histological changes induced by different modes of Fractional CO2 laser in treatment of PCA. PAT...

journal_title：Lasers in surgery and medicine

authors： Esmat SM,Fawzi MM,Gawdat HI,Ali HS,Sayed SS

更新日期：2015-07-01 00:00:00

abstract：:Ablative lasers (CO2 and Er:YAG) provide the greatest improvement in photoaging, but significant adverse effects limit their use. Nonablative lasers have reduced adverse effects, but limited efficacy. Fractional photothermolysis (FP) produces arrays of microscopic thermal wounds called microscopic treatment zones (MTZ...

journal_title：Lasers in surgery and medicine

authors： Geronemus RG

更新日期：2006-03-01 00:00:00

abstract：BACKGROUND AND OBJECTIVES:The purpose of this in vitro study is to evaluate the use of the KTP (potassium-titanyl-phosphate) 532 nm laser for future use in endovaporization of large choroidal melanomas. STUDY DESIGN/MATERIALS AND METHODS:A KTP 532 nm green laser coupled to a 0.3 mm fiberoptic probe was used to perform...

journal_title：Lasers in surgery and medicine

authors： Mattes D,Reich EM,Muellner K,Langmann G

更新日期：2005-01-01 00:00:00

abstract：BACKGROUND:Acne scarring is a common disfiguring sequela of acne vulgaris which can lead to serious psychosocial problems and have a negative effect on patients' quality of life. Although a variety of approaches can be used to treat atrophic acne scars, disadvantages such as long-healing time, dyspigmentation, infectio...

journal_title：Lasers in surgery and medicine

authors： Lan T,Xiao Y,Tang L,Hamblin MR,Yin R

更新日期：2018-10-01 00:00:00

abstract：BACKGROUND AND OBJECTIVES:To analyze the impact of humidity and temperature on excimer laser ablation of polyethylene terephthalate (PET), polymethylmethacrylate (PMMA) and porcine corneal tissue, and an ablation model to compensate for the temperature and humidity changes on ablation efficiency. STUDY DESIGN/MATERIAL...

journal_title：Lasers in surgery and medicine

authors： Verma S,Kehrer T,Hesser J,Arba Mosquera S

更新日期：2020-09-01 00:00:00

abstract：BACKGROUND AND OBJECTIVE:Lasers are used for caries removal in enamel and dentin, but are currently limited in their ability to remove sound tooth structure. In this study plasma interaction regimes are investigated as the principal factor determining the ablation characteristics. STUDY DESIGN/MATERIALS AND METHODS:Th...

journal_title：Lasers in surgery and medicine

authors： Neev J,Pham K,Lee JP,White JM

更新日期：1996-01-01 00:00:00

abstract：BACKGROUND AND OBJECTIVES:Variable square pulse (VSP) Er:YAG laser should be quicker than older Er:YAG lasers. The objectives were: (1) comparison of VSP laser and mechanical handpiece efficacy for apicectomy and (2) determination of optimal pulse width/energy/frequency combination. STUDY DESIGN/MATERIALS AND METHODS:...

journal_title：Lasers in surgery and medicine

authors： Grgurević J,Grgurević L,Miletić I,Karlović Z,Krmek SJ,Anić I

更新日期：2005-06-01 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：:Laser recanalization using metal capped fibers occurs by thermal vaporization of occluding plaque. However, little is known about the effects of blood and flow on the temperature of the laser probe or the arterial wall during lasing. To study this, probe and arterial wall temperatures were measured while a metal cappe...

journal_title：Lasers in surgery and medicine

authors： Silverman SH,Khoury AI,Abela GS,Seeger JM

更新日期：1988-01-01 00:00:00

abstract：:Since most techniques of refractive surgery currently in use or being developed have the potential for significant side effects, there is a need for investigating alternative procedures. We herein report on the use of a pulsed CO2 laser beam delivered through a pair of complementary axicons to produce a ring of stroma...

journal_title：Lasers in surgery and medicine

authors： Chandonnet A,Bazin R,Sirois C,Bélanger PA

更新日期：1992-01-01 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：:Thermal cameras are used in research laboratories to measure tissue temperature during laser irradiation. This study was an evaluation of the accuracy of a 3-5 microns thermal camera and two 8-12 microns cameras in detecting the maximum temperatures of small targets. The size of the targets was within the range of las...

journal_title：Lasers in surgery and medicine

authors： Torres JH,Springer TA,Welch AJ,Pearce JA

更新日期：1990-01-01 00:00:00

abstract：:A 1-J/cm2 dose of single laser-irradiation applied on primary human embryo fibroblast culture was not followed either by functional or micromorphological alterations of cell surfaces. This dose, however, applied four times with 24-hour intervals changed the functional conditions as well as surface charges of cell memb...

journal_title：Lasers in surgery and medicine

authors： Kubasova T,Kovács L,Somosy Z,Unk P,Kókai A

更新日期：1984-01-01 00:00:00

abstract：BACKGROUND AND OBJECTIVES:The risk of adverse skin effects following light-based hair removal is greater in pigmented skin based on the theory of selective photothermolysis. Thus sunlight-induced pigment i.e., facultative pigmentation, increases the risk of adverse skin effects, perhaps disproportionately. The aim of t...

journal_title：Lasers in surgery and medicine

authors： Thaysen-Petersen D,Lin JY,Nash J,Beerwerth F,Wulf HC,Philipsen PA,Haedersdal M

更新日期：2014-02-01 00:00:00

abstract：BACKGROUND AND OBJECTIVE:Alternative treatments are needed to achieve consistent and more complete port wine stain (PWS) removal, especially in darker skin types; photodynamic therapy (PDT) is a promising alternative treatment. To this end, we previously reported on Talaporfin Sodium (TS)-mediated PDT. It is essential ...

journal_title：Lasers in surgery and medicine

authors： Moy WJ,Yao J,de Feraudy SM,White SM,Salvador J,Kelly KM,Choi B

更新日期：2017-10-01 00:00:00

abstract：BACKGROUND AND OBJECTIVES:Microwave treatment is an effective non-invasive treatment option for primary axillary hyperhidrosis (PAH), but the treatment parameters vary and no histopathological studies have been performed to validate clinical outcomes. This study investigated its efficacy and safety and histopathologica...

journal_title：Lasers in surgery and medicine

authors： Kaminaka C,Mikita N,Inaba Y,Kunimoto K,Okuhira H,Jinnin M,Kao B,Tanino R,Tanioka K,Shimokawa T,Yamamoto Y

更新日期：2019-09-01 00:00:00

abstract：:Hematoporphyrin derivative (HpD) is a photoactive, oncophilic substance that produces cutaneous photosensitivity as its only significant side effect. Twenty-three patients who received systemic HpD and the usual light-avoidance precautions were studied prospectively to determine the incidence and severity of cutaneous...

journal_title：Lasers in surgery and medicine

authors： Wooten RS,Smith KC,Ahlquist DA,Muller SA,Balm RK

更新日期：1988-01-01 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:Whether light emitting diode (LED) irradiation has effects on "beta-amyloid (A beta) induced apoptosis," a leading hypothesis of the cause of Alzheimer's disease (AD), or not? STUDY DESIGN/MATERIALS AND METHODS:Monolayer cell cultures of PC12 were subjected to A beta or/and LED irradiation at...

journal_title：Lasers in surgery and medicine

authors： Duan R,Zhu L,Liu TC,Li Y,Liu J,Jiao J,Xu X,Yao L,Liu S

更新日期：2003-01-01 00:00:00

abstract：:A study was conducted to compare the compressive strength, diametral tensile strength, transverse flexural strength, and flexural modulus of a microfilled and a small particle composite resin restorative material following argon laser and conventional visible light polymerization techniques. All physical properties ex...

journal_title：Lasers in surgery and medicine

authors： Kelsey WP 3rd,Blankenau RJ,Powell GL,Barkmeier WW,Cavel WT,Whisenant BK

更新日期：1989-01-01 00:00:00

abstract：BACKGROUND AND OBJECTIVES:Nanotechnology may increase the speed of penetration into the skin. This study evaluated the efficacy, safety, and pharmacokinetics of a novel topical anesthetic nanocapsule formulation (2 g) containing 2.5% lidocaine and 2.5% prilocaine (nanorap-test formulation) compared to placebo (control ...

journal_title：Lasers in surgery and medicine

authors： Gobbato C,Gobbato A,Magalhães TB,Mendes GD,Ilha JO,Moreno RA,Antunes NJ,De Nucci G

更新日期：2019-09-01 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：OBJECTIVE:The aim of this study was to evaluate the effect of relatively novel approach of application of polychromatic light waves on flap survival of experimental musculocutaneous flap model and to investigate efficacy of this modality as a delay procedure to increase vascularization of zone 4 of transverse rectus ab...

journal_title：Lasers in surgery and medicine

authors： Calis M,Demirtas TT,Sert G,Irmak G,Gumusderelioglu M,Turkkani A,Çakar AN,Ozgur F

更新日期：2019-08-01 00:00:00

abstract：BACKGROUND AND OBJECTIVES:Primary blast injury is produced by shock waves. Blast injuries to lungs are extremely critical threats to survival, but their etiology is largely undefined. The majority of animal models for these injuries use explosive or complex experimental settings, limiting the laboratory study of blast ...

journal_title：Lasers in surgery and medicine

authors： Satoh Y,Sato S,Saitoh D,Tokuno S,Hatano B,Shimokawaji T,Kobayashi H,Takishima K

更新日期：2010-04-01 00:00:00

abstract：BACKGROUND AND OBJECTIVES:During transmyocardial laser revascularization (TMLR), multiple microembolic signals (MES) can be detected in cerebral arteries. We sought to characterize composition and clinical relevance of these MES and to evaluate strategies to reduce cerebral microembolization during TMLR. STUDY DESIGN/...

journal_title：Lasers in surgery and medicine

authors： Gerriets T,Grossherr M,Misfeld M,Nees U,Reusche E,Stolz E,Sievers HH,Kaps M,Kraatz EG

更新日期：2004-01-01 00:00:00

abstract：INTRODUCTION:Patient demand for non-surgical, non-invasive, and no-downtime wrinkle reduction treatment procedures has grown dramatically over the past decade as new treatments and technologies have been introduced. This study was performed in order to evaluate the safety and efficacy of the TriPollar radiofrequency (R...

journal_title：Lasers in surgery and medicine

authors： Shapiro SD,Eros Y,Abrahami Y,Leviav A

更新日期：2012-08-01 00:00:00

abstract：BACKGROUND AND OBJECTIVES:Efficacy of topical anesthetics can be enhanced by pretreatment of the skin with ablative fractional lasers. However, little is known about the role of parameters such as laser modality and laser density settings in this technique. Aims of this study were to compare the efficacy of pretreatmen...

journal_title：Lasers in surgery and medicine

authors： Meesters AA,Nieboer MJ,Kezic S,de Rie MA,Wolkerstorfer A

更新日期：2018-10-01 00:00:00