abstract：:In this study, we examined short-term strength and histology of experimental argon and CO2 laser-welded and control-sutured enterotomies in a rabbit model. Longitudinal 1.0-cm enterotomies were closed with the argon laser at 0.5 (n = 10) or 1.0 (n = 10) W power and a spot diameter of 2.8 mm resulting in energy fluence...

journal_title：Lasers in surgery and medicine

authors： Vlasak JW,Kopchok GE,White RA

更新日期：1988-01-01 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：: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：:We present results of a series of laser spectroscopic measurements on in vitro samples of cardiovascular tissue. These include laser Raman scattering, Fourier transform infrared, plasma emission and fluorescence, and electron paramagnetic resonance spectroscopy. The results of these spectroscopic measurements are disc...

journal_title：Lasers in surgery and medicine

authors： Clarke RH,Isner JM,Gauthier T,Nakagawa K,Cerio F,Hanlon E,Gaffney E,Rouse E,DeJesus S

更新日期：1988-01-01 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：:The transport of biologically active material during laser cutting with CO2 and Er lasers is demonstrated. This transport mechanism removes particles from the surface of gelatin, agar, and liver samples into the depth of the laser-formed craters. The transport phenomenon is explained by a contraction and condensation ...

journal_title：Lasers in surgery and medicine

authors： Frenz M,Mathezloic F,Stoffel MH,Zweig AD,Romano V,Weber HP

更新日期：1988-01-01 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

authors： Lichtiger M,Russin DJ

更新日期：1987-01-01 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

authors： Whipple TL,Marotta JJ,May TC,Caspari RB,Meyers JF

更新日期：1987-01-01 00:00:00

abstract：:This study characterizes the special properties of hematoporphyrin derivative (HpD) (Photofrin I) and Photofrin II with respect to the absorption and fluorescence spectra of the subfractions of the compounds in both solution and cells. In addition, data are presented demonstrating variation in the spectral amplitudes ...

journal_title：Lasers in surgery and medicine

authors： Sun CH,Duzman E,Mellott J,Liaw LH,Berns MW

更新日期：1987-01-01 00:00:00

abstract：:The use of pulsed laser radiation to recanalize occluded biliary endoprostheses was examined. In vitro measurements demonstrated that a repetitively pulsed organic dye laser transmitted through a small diameter quartz fiber can recanalize an occluded stent in less than 10 sec without causing visible damage to the sten...

journal_title：Lasers in surgery and medicine

authors： Nishioka NS,Kelsey PB,Kibbi AG,Mihm MC Jr,Anderson RR

更新日期：1987-01-01 00:00:00

abstract：:Hyperthermia induced by a microwave source (2,450 MHz) was used alone and in combination with photodynamic therapy (PDT) to treat the SMT-F, EMT-6, and RIF animal tumors in vivo. PDT was administered using either Photofrin I or II as the photosensitizer and an argon-pumped tunable dye laser (630 nm) as the light sourc...

journal_title：Lasers in surgery and medicine

authors： Waldow SM,Henderson BW,Dougherty TJ

更新日期：1987-01-01 00:00:00

abstract：:During a ten-year period 642 abdominal hollow organ resections have been performed by means of a new, original technique--that is, CO2 laser irradiation combined with specially designed instrumentation. This resulted in a remarkable decrease in postoperative morbidity and mortality. The article describes the laser pro...

journal_title：Lasers in surgery and medicine

authors： Skobelkin OK,Breckov EI,Bashilov VP,Korepanov VI,Litwin GD,Smoljaninov MV,Malyshev BN,Salyuk VA

更新日期：1987-01-01 00:00:00

abstract：:This study examined both the effect of variations in optical fiber tip and in light wavelength on laser-induced hyperthermia in rat brain. Normal rat brains were exposed to argon laser light (454-514.5 nm) delivered through an intracerebral end-emitting (bare-tipped) or a diffusion-emitting (sapphire-tipped) optical f...

journal_title：Lasers in surgery and medicine

authors： Elias Z,Powers SK,Atstupenas E,Brown JT

更新日期：1987-01-01 00:00:00

abstract：:The distribution of light in laser-irradiated biological medium is computed using four different procedures. Values computed with Beer's law of attenuation, Kubelka-Munk theory, the diffusion approximation, and a seven-flux model are compared. The proper conditions for using each model are discussed. ...

journal_title：Lasers in surgery and medicine

authors： Welch AJ,Yoon G,van Gemert MJ

更新日期：1987-01-01 00:00:00

abstract：:Current laser dentistry since our initial studies in 1964 is reviewed. Three areas are considered: routine dental office practice, tooth restoration, and oral surgery. For tooth restoration and oral surgery, CO2 and neodymium:YAG lasers are used and lasers are used in photodynamic therapy for oral cancer. Dental offic...

journal_title：Lasers in surgery and medicine

authors： Goldman L,Goldman B,Van Lieu N

更新日期：1987-01-01 00:00:00

abstract：:Since the first use of lasers in ophthalmology in the early 1960s, applications for the medical laser have been found in many medical specialties. Despite their increasing usefulness, lasers have been reported to induce injuries. Few studies have tried to quantify the number of injuries caused by the clinical use of l...

journal_title：Lasers in surgery and medicine

authors： Rodriguez JG,Sattin RW

更新日期：1987-01-01 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

authors： Washida H,Watanabe H,Sakagami H,Sasaki S,Daikuzono N

更新日期：1987-01-01 00:00:00

abstract：:Progress in the young field of laser recanalization of occluded arteries and applications in cardiovascular disease to which many investigators have contributed is briefly summarized. Specific problems remaining to be solved are set forth. In conclusion, the author makes a cautious prediction of success for the percut...

journal_title：Lasers in surgery and medicine

authors： Choy DS

更新日期：1986-01-01 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

authors： Hobby LW

更新日期：1986-01-01 00:00:00

abstract：:Previous investigators, using relatively high irradiance levels, have been unable to demonstrate viable tissue in the plume during carbon dioxide laser vaporization. Our study was undertaken to reinvestigate this possibility, particularly at the lower irradiance levels that are currently in clinical use. Fresh post-mo...

journal_title：Lasers in surgery and medicine

authors： Walker NP,Matthews J,Newsom SW

更新日期：1986-01-01 00:00:00

abstract：:The CO2 laser has provided the otolaryngologist/head and neck surgeon with a valuable addition in the diagnosis and treatment of malignant disease of the oral cavity. It is also helpful in the treatment of the premalignant clinical leukoplakias of the oral cavity. Carcinoma in situ has been diagnosed and treated succe...

journal_title：Lasers in surgery and medicine

authors： Duncavage JA,Ossoff RH

更新日期：1986-01-01 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：:For our study of the effect of low energy laser irradiation (LELI) on living tissue we used HeNe laser on rats. The exponential absorption was reaffirmed in the living tissues overlying the sciatic nerve. An optimal range of energy between 3.5 and 7 J--associated with energy concentration of 4-10 J/cm2 delivered trans...

journal_title：Lasers in surgery and medicine

authors： Nissan M,Rochkind S,Razon N,Bartal A

更新日期：1986-01-01 00:00:00

abstract：:A technique for partial nephrectomy using a combination of an Ultrasonic Surgical Aspirator and a neodymium:YAG laser provided better hemostasis and decreased total operative time compared to standard methods. Delayed hemorrhage was not seen, and thermal damage to the remaining renal parenchyma was minimal. ...

journal_title：Lasers in surgery and medicine

authors： Landau ST,Wood TW,Melzer RB,Lee RG,Smith JA Jr

更新日期：1986-01-01 00:00:00

abstract：:The in vivo biological activity of uroporphyrin I has been studied by determining the amount of necrosis produced in murine tumors exposed to various total doses of light at 615 nm. Similarly, the in vitro photosensitizing activity of uroporphyrin I was examined by measuring the percentage of cells killed in a cell cu...

journal_title：Lasers in surgery and medicine

authors： Nelson JS,Sun CH,Berns MW

更新日期：1986-01-01 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：:Patients with malignant obstructive airway lesions often present with total or segmental atelectasis of lung. In spite of prompt initiation of palliative external radiation alone, some patients were unable to complete the planned course of radiation therapy. Since May 1983, 17 patients with malignant obstructive endob...

journal_title：Lasers in surgery and medicine

authors： Jain PR,Dedhia HV,Lapp NL,Thompson AB,Frich JC Jr

更新日期：1985-01-01 00:00:00

abstract：:The fourth harmonic wavelength (266 nm) of a neodymium YAG laser was used to cut precise grooves on the surface of the human cornea. Well-controlled cuts were made using the laser operating at 1.3 kHz. The width of the grooves was 2-3 micron. The depth could be controlled by varying the amount of laser exposure. ...

journal_title：Lasers in surgery and medicine

authors： Berns MW,Gaster RN

更新日期：1985-01-01 00:00:00

abstract：:The potential problem of rethrombosis after laser recanalization was studied in 16 thrombus-occluded canine femoral arteries. Balloon de-endothelialization and thrombin-human blood injection produced adherent, completely occlusive thrombi 4.13 +/- 1.54 cm in length; laser exposure of the thrombi occurred at 18.35 +/- ...

journal_title：Lasers in surgery and medicine

authors： Marco J,Silvernail PJ,Fournial G,Choy DS,Fajadet J,Case RB

更新日期：1985-01-01 00:00:00

abstract：:Histological investigation of the dog's myocardium performed 7 and 25 days after irradiation with different doses of Nd-YAG laser show that the damage zone has the shape of a hollow sphere with minor changes in cardiomyocytes in the central part of the sphere. The small blood vessels in the irradiated zone remained un...

journal_title：Lasers in surgery and medicine

authors： Obelienius V,Knepa A,Lubite Y,Ambartzumian R,Isakov V,Koshelev E,Markin E

更新日期：1985-01-01 00:00:00

abstract：:Laser physiology has shown that while wound healing is generally excellent after laser impaction, it nevertheless is delayed. It is thought that this factor may be important in the treatment of hypertrophic and keloid scars. These scars have been treated in a variety of ways with the laser, and the results, which have...

journal_title：Lasers in surgery and medicine

authors： Henderson DL,Cromwell TA,Mes LG

更新日期：1984-01-01 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 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

authors： Lobraico RV

更新日期：1984-01-01 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：:Photodynamic therapy (PDT), or photoradiation therapy (PRT), utilizing hematoporphyrin derivative (HPD) as photosensitizer and an argon-dye laser system as the light source, was used alone and in combination with localized microwave hyperthermia (2450 MHz) to treat axillary tumors of the SMT-F mammary carcinoma in mic...

journal_title：Lasers in surgery and medicine

authors： Waldow SM,Henderson BW,Dougherty TJ

更新日期：1984-01-01 00:00:00

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

authors： Chavoin JP,Costagliola M,Laffitte F,Vachaud M

更新日期：1983-01-01 00:00:00

abstract：:The use of lasers as surgical tools may open up new possibilities for the treatment of atherosclerotic occlusive vascular disease. However, basic information regarding the effect of laser radiation to the lumen of normal blood vessels is needed prior to clinical application. This work investigates the nature of the CO...

journal_title：Lasers in surgery and medicine

authors： Treat MR,Weld FM,White JV,Forde KA,Fenoglio JJ,L'Esperance F,Voorhees AB

更新日期：1983-01-01 00:00:00

abstract：:Rapidly expanding laser technology has created a void in surgical instrumentation when the carbon dioxide laser is applied to intra-abdominal microlaser fertility-promoting procedures. By using proper instruments, the laser microsurgeon will be able to enhance his surgical technique as well as reduce his frustrations....

journal_title：Lasers in surgery and medicine

authors： McLaughlin DS

更新日期：1983-01-01 00:00:00

abstract：:Methods used to revascularize ischemic myocardium have included arterial reconstruction, coronary artery bypass grafting, providing direct circulation from the intraventricular chamber, and techniques to promote collateral circulation. Ventricular channels from the epicardial surface through the endocardium are readil...

journal_title：Lasers in surgery and medicine

authors： Mirhoseini M,Fisher JC,Cayton M

更新日期：1983-01-01 00:00:00

abstract：:CO2, Nd:YAG, and argon lasers have been used for 5 years for experimental and clinical procedures at the National Cancer Institute of Milan under the auspices of the National Research Council. Experimental data regarding tumor cell spread through lymphatic and hematic channels and cell viability in the fumes after CO2...

journal_title：Lasers in surgery and medicine

authors： Emanuelli H,Bandieramonte G,Marchesini R,Fava G,Rodari A,Colombo MP,Costa A,Spinelli P,Zunino F,Chiesa F,Cascinelli N,Andreola S,Pariente R,Canti GF

更新日期：1983-01-01 00:00:00