Current status of infrared fiber optics for medical laser power delivery.

abstract：BACKGROUND AND OBJECTIVES:Hereditary hemorrhagic telangiectasia (HHT) is a hereditary condition that is associated with arteriovenous malformations. A common site for these malformations is the nasal mucosa, which is associated with severe epistaxis and debilitation for affected patients. We evaluated the efficacy and ...

journal_title：Lasers in surgery and medicine

authors： Bertlich M,Kashani F,Weiss BG,Wiebringhaus R,Ihler F,Freytag S,Gires O,Kühnel T,Haubner F

更新日期：2020-06-23 00:00:00

abstract：BACKGROUND AND OBJECTIVES:Laser light of various wavelengths is being used for surgical procedures in otolaryngology. Apart from well-known fiber guided laser systems such as Nd:YAG- and Ho:YAG-lasers, newly developed diode-laser systems of different wavelengths have recently become popular in surgery. In order to comp...

journal_title：Lasers in surgery and medicine

authors： Janda P,Sroka R,Mundweil B,Betz CS,Baumgartner R,Leunig A

更新日期：2003-01-01 00:00:00

abstract：BACKGROUND AND OBJECTIVES:For Asian skin, recent "non-ablative" skin rejuvenation techniques have become the focus of attention for darker complected patients. In our earlier research, we have shown that intense pulsed light (IPL) technology can be applied to Asian skin with a high degree of safety and efficacy. In thi...

journal_title：Lasers in surgery and medicine

authors： Negishi K,Wakamatsu S,Kushikata N,Tezuka Y,Kotani Y,Shiba K

更新日期：2002-01-01 00:00:00

abstract：BACKGROUND AND OBJECTIVE:In endodontics, a major diagnostic challenge is the accurate assessment of pulp status. In this study, we designed and characterized a fiber-based laser speckle imaging system to study pulsatile blood flow in the tooth. STUDY DESIGN/MATERIALS AND METHODS:To take transilluminated laser speckle ...

journal_title：Lasers in surgery and medicine

authors： Regan C,Yang BY,Mayzel KC,Ramirez-San-Juan JC,Wilder-Smith P,Choi B

更新日期：2015-08-01 00:00:00

abstract：BACKGROUND AND OBJECTIVE:The nonablative application of holmium:yttrium-aluminum-garnet (Ho:YAG) laser energy to the joint capsule of patients with glenohumeral instability has been found to shrink capsular tissue and to help stabilize the joint. The purpose of this study was to evaluate the effect of nonablative laser...

journal_title：Lasers in surgery and medicine

authors： Hayashi K,Nieckarz JA,Thabit G 3rd,Bogdanske JJ,Cooley AJ,Markel MD

更新日期：1997-01-01 00:00:00

abstract：BACKGROUND AND OBJECTIVES:To demonstrate that high color fidelity light-emitting diode (LED) sources are preferred by dermatologists for the evaluation of patients during standard-of-care, outpatient visits when compared to low color fidelity LED sources similar to fluorescent lighting. STUDY DESIGN/MATERIALS AND METH...

journal_title：Lasers in surgery and medicine

authors： Juhasz M,Pham C,Allen R,Harper A,Siminovitch M,Brase W,Linden K,Zachary C,Atanaskova Mesinkovska N

更新日期：2020-11-08 00:00:00

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 OBJECTIVES:To evaluate the effect of Er:YAG and Nd:YAG laser on radicular dentine permeability when using distilled and deionized water and 1% NaClO as irrigating solutions. STUDY DESIGN/MATERIALS AND METHODS:Thirty human maxillary canines were divided randomly into six groups. The root canals were inst...

journal_title：Lasers in surgery and medicine

authors： Brugnera A Jr,Zanin F,Barbin EL,Spanó JC,Santana R,Pécora JD

更新日期：2003-01-01 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：BACKGROUND AND OBJECTIVE:Dynamics of cryogen spray deposition, water condensation and frost formation is studied in relationship to cooling rate and efficiency of cryogen spray cooling (CSC) in combination with laser dermatologic surgery. STUDY DESIGN/MATERIALS AND METHODS:A high-speed video camera was used to image t...

journal_title：Lasers in surgery and medicine

authors： Majaron B,Kimel S,Verkruysse W,Aguilar G,Pope K,Svaasand LO,Lavernia EJ,Nelson JS

更新日期：2001-01-01 00:00:00

abstract：BACKGROUND AND OBJECTIVE:Photodynamic therapy (PDT) has become one of the emerging options in management of cancer and other diseases. The major goal of PDT is to kill cancer cell without causing any adverse effect to the normal cells. PDT in combination of different therapeutic agents is being evaluated to improve the...

journal_title：Lasers in surgery and medicine

authors： Ahn JC,Biswas R,Chung PS

更新日期：2012-12-01 00:00:00

abstract：OBJECTIVE:Dental composite restorative materials are color matched to the tooth and are difficult to remove by mechanical means without excessive removal or damage to peripheral enamel and dentin. Lasers are ideally suited for selective ablation to minimize healthy tissue loss when replacing existing restorations, seal...

journal_title：Lasers in surgery and medicine

authors： Chan KH,Hirasuna K,Fried D

更新日期：2011-09-01 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：:A laser endoscope was devised using optic fibers in order to provide a means of visualization and removal of atheromatous plaques from arteries in cadavers and experimental animals. Atheromatous plaques were satisfactorily lased off in a few seconds, although contraction of lased vessels was observed. A self-focusing ...

journal_title：Lasers in surgery and medicine

authors： Ward H

更新日期：1984-01-01 00:00:00

abstract：:The effects of picosecond laser-induced optical breakdown on tissue were investigated using high-intensity 40 ps Nd:YAG laser pulses at 1.06 microns. Tissue damage was evaluated using the corneal endothelium in vitro as a model system. Systematic studies were performed to determine the scaling of the tissue damage and...

journal_title：Lasers in surgery and medicine

authors： Zysset B,Fujimoto JG,Puliafito CA,Birngruber R,Deutsch TF

更新日期：1989-01-01 00:00:00

abstract：BACKGROUND AND OBJECTIVES:To investigate the morphology of cementum and root dentin after Er:YAG laser irradiation with and without water coolant, compared to that after CO(2) laser irradiation and an untreated surface. STUDY DESIGN/MATERIALS AND METHODS:Ten extracted healthy human teeth were used. Er:YAG and CO(2) la...

journal_title：Lasers in surgery and medicine

authors： Sasaki KM,Aoki A,Ichinose S,Ishikawa I

更新日期：2002-01-01 00:00:00

abstract：BACKGROUND AND OBJECTIVES:Many studies of laser-induced thermal decomposition of dental enamel have demonstrated a reduction in the rate of acid dissolution, size of artificial caries-like lesions, and acid reactivity. Additionally, studies have correlated the loss of carbonate from dental enamel with a reduction in ac...

journal_title：Lasers in surgery and medicine

authors： Zuerlein MJ,Fried D,Featherstone JD

更新日期：1999-01-01 00:00:00

abstract：BACKGROUND AND OBJECTIVES:Intralipid (IP) is a scatterer extensively used in the building of phantoms for Biomedical Optics measurements. Recently, deviations from the linearity have been shown for the concentration scaling law of the scattering coefficient of IP water solutions at visible wavelengths. In this work thi...

journal_title：Lasers in surgery and medicine

authors： Autiero M,Liuzzi R,Riccio P,Roberti G

更新日期：2005-06-01 00:00:00

abstract：BACKGROUND AND OBJECTIVES:It is established that both pulsed Nd:YAG (1,064 nm) and continuous diode (810 nm) dental lasers kill pathogenic bacteria (laser antisepsis), but a quantitative method for determining clinical dosimetry does not exist. The purpose of this study was to develop a method to quantify the efficacy ...

journal_title：Lasers in surgery and medicine

authors： Harris DM,Yessik M

更新日期：2004-01-01 00:00:00

abstract：BACKGROUND AND OBJECTIVES:Non-invasive laser skin treatment modalities are generally designed to protect the epidermis by cooling and limiting the laser energy deposition in accordance with skin type. We explore a treatment modality that uses a 2,940 nm Er:YAG laser with high tissue absorption to ablate an array of cha...

journal_title：Lasers in surgery and medicine

authors： Tanghetti E,Mirkov M,Sierra RA

更新日期：2017-01-01 00:00:00

abstract：:For laser angioplasty probes, the thermal properties of the probes will primarily determine their mechanism of action. We examined the absorption, temperature increase, and probe degradation of transparent contact probes (hemispherical contact probe and ball-shaped fibers) and metal laser probes coupled to a continuou...

journal_title：Lasers in surgery and medicine

authors： Verdaasdonk RM,Holstege FC,Jansen ED,Borst C

更新日期：1991-01-01 00:00:00

abstract：BACKGROUND AND OBJECTIVE:Light dosimetry for endobronchial photodynamic therapy is not very advanced to date. This study investigates the dependency of the fluence rate distribution in the bronchial wall on several parameters. STUDY DESIGN/MATERIALS AND METHODS:A Monte Carlo model is employed for the illumination of a...

journal_title：Lasers in surgery and medicine

authors： Murrer LH,Marijnissen HP,Star WM

更新日期：1998-01-01 00:00:00

abstract：BACKGROUND AND OBJECTIVE:Knowledge about optical parameters and the resultant light distribution in laser-treated tissue is important for predicting the effects of laser-induced thermotherapy of liver metastases (LITT). MATERIALS AND METHODS:The absorption and scattering coefficients as well as the anisotropy factors ...

journal_title：Lasers in surgery and medicine

authors： Germer CT,Roggan A,Ritz JP,Isbert C,Albrecht D,Müller G,Buhr HJ

更新日期：1998-01-01 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:Reflectance confocal microscopy (RCM) is a developing approach for noninvasive detection of oral lesions with label-free contrast and cellular-level resolution. For access into the oral cavity, confocal microscopes are being configured with small-diameter telescopic probes and small objective lenses. However...

journal_title：Lasers in surgery and medicine

authors： Peterson G,Zanoni DK,Ardigo M,Migliacci JC,Patel SG,Rajadhyaksha M

更新日期：2019-05-08 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：BACKGROUND AND OBJECTIVES:Optical microangiography (OMAG) is a noninvasive technique capable of imaging 3D microvasculature. OMAG-based optical lymphangiography has been developed for 3D visualization of lymphatic vessels without the need for exogenous contrast agents. In this study, we utilize the optical lymphangiogr...

journal_title：Lasers in surgery and medicine

authors： Qin W,Baran U,Wang R

更新日期：2015-10-01 00:00:00

abstract：BACKGROUND AND OBJECTIVE:The clinical application of laser-assisted vascular anastomosis is afflicted by unreliable and low bonding strengths as well as tedious handling during microvascular surgery. The challenge to be met arises from the flow-off of the chromophore during soldering that changes the absorption and sta...

journal_title：Lasers in surgery and medicine

authors： Schönfeld A,Kabra ZM,Constantinescu M,Bosshardt D,Stoffel MH,Peters K,Frenz M

更新日期：2017-12-01 00:00:00

abstract：OBJECTIVES:Laser lithotripsy, often used during ureteronephroscopy (URNS), requires the Ho:YAG optical fiber transmit energy via total internal reflection (TIR). In critical lower pole deflections, energy may refract into the cladding causing fiber failure and scope damage. New optical fiber technology aims to have inc...

journal_title：Lasers in surgery and medicine

authors： Forbes CM,Rebullar KA,Teichman JMH

更新日期：2018-10-01 00:00:00

abstract：:Low power laser irradiation has been reported to cause biological effects due to the photochemical and/or photophysical action of the radiation. This study determined quantitatively if transcutaneous low power laser irradiation can affect the regeneration of the rat facial nerve. The facial nerve was crushed unilatera...

journal_title：Lasers in surgery and medicine

authors： Anders JJ,Borke RC,Woolery SK,Van de Merwe WP

更新日期：1993-01-01 00:00:00