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 this scaling law was determined at 832 nm.
STUDY DESIGN/MATERIALS AND METHODS:Space resolved transmittance measurements of a laser beam at 832 nm through water solutions of IP and ink were performed and compared with the corresponding results of Monte Carlo simulations.
RESULTS:The comparison provides a quadratic dependence of mu'(s) on the volume-to-volume scatterer concentration, C(IP), in the range of C(IP) values (0.0024 journal_name journal_title authors doi subject pub_date pages issue eissn issn journal_volume pub_type
abstract::We describe our experience and the problems we encountered organizing an autonomous surgical unit in which the equipment and organization enable three lasers to be used in may different applications in medicine and surgery. The three lasers--CO2, Nd:YAG, and argon--may now be used by all the departments concerned with...
journal_title:Lasers in surgery and medicine
pub_type: 杂志文章
doi:10.1002/lsm.1900030102
更新日期:1983-01-01 00:00:00
abstract:BACKGROUND AND OBJECTIVES:Noninvasive bipolar and monopolar radiofrequency (RF) deep dermal heating devices have previously been described. A novel minimally invasive RF device employing a bipolar microneedle electrode system is introduced and its resultant thermal effects on human skin in vivo were characterized for t...
journal_title:Lasers in surgery and medicine
pub_type: 杂志文章
doi:10.1002/lsm.20687
更新日期:2009-02-01 00:00:00
abstract::Interstitial thermotherapy using Nd:YAG-laser induced hyperthermia is a new stereotactic method for the treatment of brain tumors in poorly accessible regions. To provide a basis for the underlying tissue alterations, we have analyzed the spatial and temporal pattern of interstitial laser hyperthermia lesions in the n...
journal_title:Lasers in surgery and medicine
pub_type: 杂志文章
doi:10.1002/lsm.1900130212
更新日期:1993-01-01 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
pub_type: 杂志文章
doi:10.1002/lsm.23090
更新日期:2019-05-08 00:00:00
abstract:BACKGROUND AND OBJECTIVE:High-power laser has recently become a physical stimulus for bone regeneration. Little is known about how high-power laser irradiation affects osteoblast differentiation. This study investigated osteoblast responses to high-power laser and combined irradiation with BMP-2 treatment. STUDY DESIG...
journal_title:Lasers in surgery and medicine
pub_type: 杂志文章
doi:10.1002/lsm.20870
更新日期:2010-08-01 00:00:00
abstract::Our experiments on transmitting high-power excimer laser pulses through optical fibers and our investigations on excimer laser ablation of hard tissue show the feasibility of using the excimer laser as an additional instrument in general and accident surgery involving minimal invasive surgery. By combining XeCl-excime...
journal_title:Lasers in surgery and medicine
pub_type: 杂志文章
doi:10.1002/lsm.1900110612
更新日期:1991-01-01 00:00:00
abstract:BACKGROUND AND OBJECTIVES:Photodynamic therapy (PDT) may be a less invasive treatment for lung cancer. Our newly developed surface layer-preserving PDT (SPPDT) technique enables us to irradiate deep tumor while preserving the overlying tissue. The aim of this basic study was to verify that the SPPDT technique might be ...
journal_title:Lasers in surgery and medicine
pub_type: 杂志文章
doi:10.1002/lsm.22046
更新日期:2012-08-01 00:00:00
abstract:BACKGROUND AND OBJECTIVES:Recently developed laser lipolysis systems have been disappointing because they require more time to remove the same amount of fat than other liposuction methods. A new Nd:YAG laser has been introduced that uses the 1,444 nm wavelength, better absorbed by fat. STUDY DESIGN/MATERIALS AND METHO...
journal_title:Lasers in surgery and medicine
pub_type: 杂志文章
doi:10.1002/lsm.20786
更新日期:2009-12-01 00:00:00
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
pub_type: 杂志文章
doi:10.1002/(SICI)1096-9101(1996)19:4<413::AID-LSM5>3.
更新日期:1996-01-01 00:00:00
abstract::This canine study (n = 6) evaluated the acute and chronic effects of Nd:YAG laser prostatectomy using a Prolase II fiber. The Prolase II device consists of a 1,000 microns quartz fiber which directs a cone of Nd:YAG laser energy, at 45 degrees to the axis of the fiber, into the prostatic urethra under direct visual gu...
journal_title:Lasers in surgery and medicine
pub_type: 杂志文章
doi:10.1002/lsm.1900150304
更新日期:1994-01-01 00:00:00
abstract:OBJECTIVES:Photodynamic therapy (PDT) is an effective cancer treatment that uses photosensitizers, light, and oxygen to destroy malignant cells. Porphyrins, and in particular the cationic derivatives, are the most investigated photosensitizers for PDT. In this context, it is important to study new methodologies to deve...
journal_title:Lasers in surgery and medicine
pub_type: 杂志文章
doi:10.1002/lsm.22824
更新日期:2018-07-01 00:00:00
abstract::Percutaneous endoscopic approaches to cholelithiasis would be facilitated by methods for welding gallbladder tissues. We evaluated the bursting pressure and histologic appearance of canine gallbladder tissue welded with a thulium-holmium-chromium:YAG (THC:YAG) laser producing a 2.15 microns pulsed output. The tissue a...
journal_title:Lasers in surgery and medicine
pub_type: 杂志文章
doi:10.1002/lsm.1900090211
更新日期:1989-01-01 00:00:00
abstract::The author's experience in the use of the argon laser in the treatment of superficial vascular lesions in children is reviewed. Deteriorating portwine stains, strawberry hemangiomas, other hemangiomas, telangiectasias, and other lesions are discussed. Their natural histories are discussed. Details are given regarding ...
journal_title:Lasers in surgery and medicine
pub_type: 杂志文章
doi:10.1002/lsm.1900060106
更新日期:1986-01-01 00:00:00
abstract::A synthetic contact sapphire endoprobe attached to the quartz fiber of a neodymium:yttrium aluminum garnet (Nd:YAG) laser had been used in the transurethral treatment of bladder tumors. A total of 68 operations have been carried out in 48 patients. The contact probe was placed directly into the tumor under direct visi...
journal_title:Lasers in surgery and medicine
pub_type: 杂志文章
doi:10.1002/lsm.1900070616
更新日期:1987-01-01 00:00:00
abstract:BACKGROUND AND OBJECTIVES:Sutures are currently the gold standard for wound closure but they are still unable to seal tissue and may induce scarring or inflammation. Biocompatible glues, based on polysaccharides such as chitosan, are a possible alternative to conventional wound closure. In this study, the adhesion of l...
journal_title:Lasers in surgery and medicine
pub_type: 杂志文章
doi:10.1002/lsm.20418
更新日期:2007-01-01 00:00:00
abstract:BACKGROUND AND OBJECTIVE:The metabolic flexibility is often impaired in diseases associated with obesity, and many studies are based on the hypothesis that dysfunction in peripheral tissues such as skeletal muscle, liver and adipose tissue represent the etiology of development of metabolic inflexibility. Experimental e...
journal_title:Lasers in surgery and medicine
pub_type: 杂志文章,随机对照试验
doi:10.1002/lsm.22395
更新日期:2015-10-01 00:00:00
abstract::Photodynamic therapy (PDT) is a promising approach to the treatment of cancer. Preferential retention of the photosensitizer by malignant tissue has been considered a hallmark of this treatment modality. However, photosensitivity can be observed in normal, non-neoplastic tissues, and the present study investigated the...
journal_title:Lasers in surgery and medicine
pub_type: 杂志文章
doi:10.1002/lsm.1900110110
更新日期:1991-01-01 00:00:00
abstract:BACKGROUND AND OBJECTIVES:Smear layer removal with EDTA from root canal walls allows greater cleaning and disinfection of root canals. However, because Er:YAG laser acts on the removal of the smear layer, the objective of investigation was to analyze in vitro the effect of Er:YAG laser on dentin root canal wall permeab...
journal_title:Lasers in surgery and medicine
pub_type: 杂志文章
doi:10.1002/(sici)1096-9101(2000)26:3<277::aid-lsm5>3.
更新日期:2000-01-01 00:00:00
abstract:BACKGROUND AND OBJECTIVE:The aim was to investigate the bactericidal effect of the 1,064 nm Nd:YAG laser on Staphylococcus epidermidis. MATERIAL AND METHODS:S. epidermidis was inoculated on agar plates and then exposed to pulsed laser light in three different modes: with an uninterrupted train of pulses, or with two d...
journal_title:Lasers in surgery and medicine
pub_type: 杂志文章
doi:10.1002/1096-9101(2000)27:4<336::aid-lsm6>3.0.co;2
更新日期:2000-01-01 00:00:00
abstract::The advantages of the laser have been extolled in the literature but, in contrast, there is a paucity of information on the hazards involved in its surgical use. Recognition and prevention of risks is a mandatory requirement. The experience by encounter is described with counsel as to the prerequisite of taking precau...
journal_title:Lasers in surgery and medicine
pub_type: 杂志文章
doi:10.1002/lsm.1900040207
更新日期:1984-01-01 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
pub_type: 杂志文章
doi:10.1002/lsm.22701
更新日期:2017-12-01 00:00:00
abstract:BACKGROUND:Femtosecond (fs) Laser Ionisation Mass Spectrometry (fs-LIMS) on colon tissues are described and investigated using ionization/fragmentation processes in details to present a new application in this study. Linear Time of Flight (L-TOF) mass analyzer was utilized to investigate paraffin-embedded human tissue ...
journal_title:Lasers in surgery and medicine
pub_type: 杂志文章
doi:10.1002/lsm.23033
更新日期:2019-04-01 00:00:00
abstract::The acute or emergency treatment of traumatic tattoos has been based on the principles of immediate and thorough removal of all particles. The delayed treatment of traumatic tattoos has classically been with overgrafting or dermabrasion. We developed an animal model for traumatic tattoos. Two levels of wounds were mad...
journal_title:Lasers in surgery and medicine
pub_type: 杂志文章
doi:10.1002/lsm.1900100208
更新日期:1990-01-01 00:00:00
abstract::Previous reports of effects of CO2 laser energy on human fibrocartilage suggest thermal injury extends to a depth of approximately 70 microns from the target surface with power settings of 35 W and exposure times of 0.5 seconds. The present study was undertaken to look for more subtle evidence of thermal alteration of...
journal_title:Lasers in surgery and medicine
pub_type: 杂志文章
doi:10.1002/lsm.1900070209
更新日期:1987-01-01 00:00:00
abstract:BACKGROUND AND OBJECTIVE:Local recurrence after surgical resection for breast cancer is a significant problem and is often not controlled by radiation or chemotherapy treatments. Local recurrence is thought to be, at least in part, due to residual disease, and/or due to the contamination of the surgical field during re...
journal_title:Lasers in surgery and medicine
pub_type: 杂志文章
doi:10.1002/lsm.1900170406
更新日期:1995-01-01 00:00:00
abstract::Diagnostic endoscopy has generally been done under intravenous sedation. Diazepam and meperidine are the two most frequent drugs used. Even though these drugs produce sedation, analgesia, and amnesia, they do not provide a quiet field. Therapeutic laser endoscopy requires a quiet field. We conclude that an anesthesiol...
journal_title:Lasers in surgery and medicine
pub_type: 杂志文章
doi:10.1002/lsm.1900070311
更新日期:1987-01-01 00:00:00
abstract:BACKGROUND AND OBJECTIVES:Photo-aging in Chinese often presents with benign pigmentary lesions. Q-switched lasers for pigmentary lesions in Asians had reported a risk of post-inflammatory hyperpigmentation (PIH) up to 25%. Longer pulse widths in the millisecond domains were advocated with reduced risk of PIH. Recently,...
journal_title:Lasers in surgery and medicine
pub_type: 杂志文章
doi:10.1002/lsm.22443
更新日期:2016-01-01 00:00:00
abstract::This article reviews the principle uses of ophthalmic lasers, providing historical background with an emphasis on new applications and areas of investigation. Ophthalmic photocoagulation was the first medical laser application and has restored or maintained vision in millions of people. More recently, photodisruption ...
journal_title:Lasers in surgery and medicine
pub_type: 杂志文章,评审
doi:10.1002/lsm.1900170203
更新日期:1995-01-01 00:00:00
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
pub_type: 杂志文章
doi:10.1002/lsm.23289
更新日期:2020-06-23 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
pub_type: 临床试验,杂志文章
doi:10.1002/lsm.10066
更新日期:2002-01-01 00:00:00