keyword
MENU ▼
Read by QxMD icon Read
search

Excimer laser

keyword
https://www.readbyqxmd.com/read/28219793/excimer-laser-facilitated-stent-expansion-the-effect-of-contrast-enhancement
#1
Andreas Y Andreou, Theodoros Kyriakou, Chrysostomos Mavroudis
No abstract text is available yet for this article.
February 17, 2017: Hellenic Journal of Cardiology: HJC, Hellēnikē Kardiologikē Epitheōrēsē
https://www.readbyqxmd.com/read/28207886/connective-tissue-growth-factor-is-not-necessary-for-haze-formation-in-excimer-laser-wounded-mouse-corneas
#2
Xiaodi Feng, Liya Pi, Sriniwas Sriram, Gregory S Schultz, Daniel J Gibson
We sought to determine if connective tissue growth factor (CTGF) is necessary for the formation of corneal haze after corneal injury. Mice with post-natal, tamoxifen-induced, knockout of CTGF were subjected to excimer laser phototherapeutic keratectomy (PTK) and the corneas were allowed to heal. The extent of scaring was observed in non-induced mice, heterozygotes, and full homozygous knockout mice and quantified by macrophotography. The eyes from these mice were collected after euthanization for re-genotyping to control for possible Cre-mosaicism...
2017: PloS One
https://www.readbyqxmd.com/read/28195498/quantitative-imaging-of-ozone-vapor-using-photofragmentation-laser-induced-fluorescence-lif
#3
Kajsa Larsson, Dina Hot, Andreas Ehn, Andreas Lantz, Wubin Weng, Marcus Aldén, Joakim Bood
In the present work, the spectral properties of gaseous ozone (O3) have been investigated aiming to perform quantitative concentration imaging of ozone by using a single laser pulse at 248 nm from a KrF excimer laser. The O3 molecule is first photodissociated by the laser pulse into two fragments, O and O2. Then the same laser pulse electronically excites the O2 fragment, which is vibrationally hot, whereupon fluorescence is emitted. The fluorescence intensity is found to be proportional to the concentration of ozone...
January 1, 2017: Applied Spectroscopy
https://www.readbyqxmd.com/read/28192589/a-critical-evaluation-of-refractive-outcomes-following-lasik-for-moderate-to-high-astigmatism-using-two-excimer-laser-platforms
#4
Sudi Patel, Maja Bohac, Alma Biscevic, Mateja Koncarevic, Marija Anticic, Nikica Gabric
PURPOSE: To calculate the surgically induced astigmatism (SIA) following LASIK and identify any association between SIA and the target induced astigmatism (TIA) at 1 year postoperatively. METHODS: The SIA was calculated using the TIA and residual astigmatism values for [A] myopic astigmatism and [B] mixed astigmatism treated with either the [I] WaveLight Allegretto EyeQ 400-Hz (Alcon Laboratories, Inc. Fort Worth, TX) or [II] Schwind Amaris 750S (Schwind eye-tech-solutions, Kleinostheim, Germany) platforms...
February 1, 2017: Journal of Refractive Surgery
https://www.readbyqxmd.com/read/28192587/advanced-surface-ablation-with-a-new-software-for-the-reduction-of-ablation-irregularities
#5
Paolo Vinciguerra, Fabrizio I Camesasca, Riccardo Vinciguerra, Samuel Arba-Mosquera, Ingrid Torres, Emanuela Morenghi, J Bradley Randleman
PURPOSE: To compare visual outcomes and postoperative aberrations after surface ablation performed with a 750-Hz versus a 1,050-Hz excimer laser coupled with an ablation software designed to reduce corneal surface irregularity. METHODS: Retrospective comparative trial of myopic eyes that had refractive surgery consecutively treated with transepithelial advanced surface ablation with a 750-Hz excimer laser (750 group) versus a 1,050-Hz excimer laser coupled with the Smart Pulse Technology ablation software (SPT group)...
February 1, 2017: Journal of Refractive Surgery
https://www.readbyqxmd.com/read/28187472/-epi-bowman-keratectomy-clinical-evaluation-of-a-new-method-of-surface-ablation
#6
S Taneri, S Kießler, A Rost, T Schultz, M Elling, B Dick
Purpose A new device for epithelial abrasion before excimer laser surface ablation or corneal cross-linking (CXL) has recently been introduced (Epi-Clear™, Orca Surgical, Kiryat-Shmona, Israel). We have reviewed the literature on the clinical results, potential benefits and drawbacks of this instrument, compared to other methods of epithelial removal. Method Literature search for "Epi-Bowman Keratectomy", "Epi-clear", and "Epikeratome" yielded 1 peer-review publication, 1 non-peer-review publication, 18 posters and presentations at international conferences (European Society of Cataract and Refractive Surgeons [ESCRS] and American Society of Cataract and Refractive Surgery [ASCRS]) on the use of the Epi-Clear™ device before surface ablation, 2 posters on the use of Epi-Clear before corneal crosslinking and 1 presentation on the experimental use of Epi-Clear for removal of a pterygium...
February 10, 2017: Klinische Monatsblätter Für Augenheilkunde
https://www.readbyqxmd.com/read/28187180/comparative-evaluation-of-visual-outcomes-and-corneal-asphericity-after-laser-assisted-in-situ-keratomileusis-with-the-six-dimension-amaris-excimer-laser-system
#7
JunJie Piao, Ying-Jun Li, Woong-Joo Whang, Mihyun Choi, Min Ji Kang, Jee Hye Lee, Geunyoung Yoon, Choun-Ki Joo
PURPOSE: To compare the visual and refractive outcomes after laser-assisted in situ keratomileusis (LASIK) surgery for correction of myopia or myopic astigmatism using a six-dimensional Amaris excimer laser. METHODS: In this retrospective cohort study, we enrolled 47 eyes of 28 patients (age: 19-36 years) with myopia or myopic astigmatism. We used the Custom Ablation Manager protocol and performed ablations with the SCHWIND AMARIS system. LASIK flaps were cut with an iFS Advanced Femtosecond Laser...
2017: PloS One
https://www.readbyqxmd.com/read/28177598/surface-engineering-of-polycrystalline-silicon-for-long-term-mechanical-stress-endurance-enhancement-in-flexible-low-temperature-poly-si-thin-film-transistors
#8
Bo-Wei Chen, Ting-Chang Chang, Yu-Ju Hung, Shin-Ping Huang, Hua-Mao Chen, Po-Yung Liao, Yu-Ho Lin, Hui-Chun Huang, Hsiao-Cheng Chiang, Chung-I Yang, Yu-Zhe Zheng, Ann-Kuo Chu, Hung-Wei Li, Chih-Hung Tsai, Hsueh-Hsing Lu, Terry Tai-Jui Wang, Tsu-Chiang Chang
Surface morphology in polycrystalline silicon (poly-Si) film is an issue regardless of whether conventional excimer laser annealing (ELA) or the newer metal-induced lateral crystallization (MILC) process is used. This paper investigates the stress distribution while undergoing long-term mechanical stress and the influence of stress on electrical characteristics. Our simulated results show that the non-uniform stress in the gate insulator is more pronounced near the polysilicon/gate insulator edge and at the two sides of the polysilicon protrusion...
February 8, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28168735/does-imiquimod-pretreatment-optimize-308-nm-excimer-laser-uvb-therapy-in-psoriasis-patients
#9
Joselin D Tacastacas, Patricia Oyetakin-White, David C Soler, Andrew Young, Sarah Groft, Kord Honda, Kevin D Cooper, Thomas S McCormick
Psoriasis continues to be a debilitating skin disease affecting 1-3% of the United States population. Although the effectiveness of several current biologic therapies have described this pathology as a IL-23, TNF-α and Th17-mediated disease, less invasive approaches are still in use and in need of refinement. One of these is the usage of narrow band-UVB (NB-UVB) therapy to deplete specifically intra-epidermal CD3(+) , CD4(+) and CD8(+) cells to clear psoriatic plaques. In order to improve NB-UVB therapy, we sought to determine whether skin pre-treatment with the TLR7 agonist imiquimod (IMQ) would help increase the efficiency of the former at resolving psoriatic plaques...
February 7, 2017: Photodermatology, Photoimmunology & Photomedicine
https://www.readbyqxmd.com/read/28151939/role-of-percent-peripheral-tissue-ablated-on-refractive-outcomes-following-hyperopic-lasik
#10
George Fatseas, Fiona Stapleton, Patrick Versace
OBJECTIVES: To determine the effect of hyperopic laser in situ keratomileusis (H-LASIK) on corneal integrity, by investigating relationships between proportionate corneal tissue ablated and refractive outcomes at 3 months. METHODS: 18 eyes of 18 subjects treated with H-LASIK by Technolas 217c Excimer Laser were included in the study. Orbscan II Topography System was used to determine corneal volume and pachymetry 3mm temporally (3T). The volume of corneal tissue ablated was determined from the laser nomogram...
2017: PloS One
https://www.readbyqxmd.com/read/28137751/lead-extraction-with-high-frequency-laser-sheaths-a-single-centre-experience
#11
Simon Pecha, Matthias Linder, Nils Gosau, Liesa Castro, Julia Vogler, Stephan Willems, Hermann Reichenspurner, Samer Hakmi
OBJECTIVES: Extraction of chronically implanted cardiac implantable electrophysiological devices leads can be difficult. Excimer laser-assisted extraction with 40 Hz sheaths has shown good results in challenging cases. In 2012, a new 80 Hz high-frequency laser sheath became available that delivers twice as many pulses per second. Here, we report our clinical experience with the new GlideLight 80 Hz laser sheath. METHODS: Between January 2012 and August 2016, 292 leads were treated in 151 patients using 80 Hz GlideLight laser sheath...
January 30, 2017: European Journal of Cardio-thoracic Surgery
https://www.readbyqxmd.com/read/28124404/vacuum-ultraviolet-photon-mediated-production-of-18-f-f2
#12
Anna Krzyczmonik, Thomas Keller, Anna Kirjavainen, Sarita Forsback, Olof Solin
The chemistry of F2 and its derivatives are amenable to facile aliphatic or aromatic substitution, as well as electrophilic addition. The main limitation in the use of [(18) F]F2 for radiopharmaceutical synthesis is the low specific activity achieved by the traditional methods of production. The highest specific activities, 55 GBq/µmol, for [(18) F]F2 have been achieved so far by using electrical discharge in the post-target production of [(18) F]F2 gas from [(18) F]CH3 F. We demonstrate that [(18) F]F2 is produced by illuminating a gas mixture of neon/F2 /[(18) F]CH3 F with vacuum ultraviolet (VUV) photons generated by an excimer laser...
January 25, 2017: Journal of Labelled Compounds & Radiopharmaceuticals
https://www.readbyqxmd.com/read/28117346/holographic-image-generation-with-a-thin-film-resonance-caused-by-chalcogenide-phase-change-material
#13
Seung-Yeol Lee, Yong-Hae Kim, Seong-M Cho, Gi Heon Kim, Tae-Youb Kim, Hojun Ryu, Han Na Kim, Han Byeol Kang, Chi-Young Hwang, Chi-Sun Hwang
The development of digital holography is anticipated for the viewing of 3D images by reconstructing both the amplitude and phase information of the object. Compared to analog holograms written by a laser interference, digital hologram technology has the potential to realize a moving 3D image using a spatial light modulator. However, to ensure a high-resolution 3D image with a large viewing angle, the hologram panel requires a near-wavelength scale pixel pitch with a sufficient large numbers of pixels. In this manuscript, we demonstrate a digital hologram panel based on a chalcogenide phase-change material (PCM) which has a pixel pitch of 1 μm and a panel size of 1...
January 24, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28114695/-functional-results-and-graft-failure-after-repeat-keratoplasty
#14
S Blug, B Seitz, A Langenbucher, N Szentmáry
Background and Purpose Keratoplasty is the oldest and most successful transplantation method in man. Despite the immunological privilege of the cornea, the graft fails in up to 10 % of patients, depending on corneal disease, quality of donor tissue and patient compliance, and repeat keratoplasty may then be necessary. The aim of this study was to verify factors which affect the functional result and graft survival after repeat keratoplasty. Patients and Methods In this single centre, consecutive retrospective case series, patients were included who were treated at Department of Ophthalmology, Saarland University Medical Centre with repeat keratoplasty between January 1st 2001 and December 31st 2010...
January 23, 2017: Klinische Monatsblätter Für Augenheilkunde
https://www.readbyqxmd.com/read/28101037/successful-restoration-of-visual-acuity-with-an-extended-range-of-vision-intraocular-lens-after-multifocal-laser-ablation
#15
Sondra Black
As our baby boomer population is aging and developing cataracts, so are our post-LASIK patients. These patients underwent LASIK surgery as they wished to be spectacle-free and are hoping to remain so after intraocular lens (IOL) surgery. Unfortunately, very little information is available regarding the suitability of presbyopia correcting IOLs for post-LASIK patients. This case represents successful implantation of an extended range of vision IOL in a 59-year-old patient who underwent multifocal ablation excimer laser surgery 12 years before...
September 2016: Case Reports in Ophthalmology
https://www.readbyqxmd.com/read/28099283/the-characteristics-of-excimer-laser-refractive-surgery-candidates
#16
Hassan Hashemi, Mehdi Khabazkhoob, Reza Pakzad, Abbasali Yekta, Marzieh Nojomi, Payam Nabovati
PURPOSE: To determine the demographic and refractive characteristics of excimer laser refractive surgery candidates in Iran. METHODS: This was a cross-sectional study between 2010 and 2014. All information was collected from 28 centers randomly selected from 12 provinces. Then, for each season of the year, one week was chosen through simple random selection, and within each week, 3 days were again chosen randomly. All excimer laser surgical procedures performed during these 3 days were identified by training staff, and data were extracted from patient charts...
January 17, 2017: Eye & Contact Lens
https://www.readbyqxmd.com/read/28089779/percutaneous-coronary-intervention-of-chronically-occluded-saphenous-vein-grafts-using-excimer-laser-atherectomy-as-an-adjuvant-therapy
#17
Mohsen Mohandes, Sergio Rojas, Mauricio Torres, Cristina Moreno, Francisco Fernández, Jordi Guarinos, Alfredo Bardají
We present two cases with chronic total occlusion of the saphenous vein graft in two patients with a history of previous bypass surgery with unfavorable anatomic features for recanalization of the native coronary artery. In the first case, two dedicated attempts for recanalization of chronic total occlusion of the native artery failed and in the second case there was not an adequate visualization of the native vessel beyond the occlusion point, not even by contralateral injection. Excimer laser atherectomy was used in both cases as an adjuvant therapy during recanalization of the saphenous vein graft in combination with a distal protection device in order to reduce distal embolization...
December 27, 2016: Cardiovascular Revascularization Medicine: Including Molecular Interventions
https://www.readbyqxmd.com/read/28068442/oct-study-of-the-femtosecond-laser-opaque-bubble-layer
#18
Gustavo K Marino, Marcony R Santhiago, Steven E Wilson
PURPOSE: To characterize the location and regularity of the opaque bubble layer (OBL) in the corneal stroma after femtosecond laser-assisted LASIK (FS-LASIK) flap generation. METHODS: In this prospective study, 30 eyes of 15 patients who had FS-LASIK surgery for myopia, astigmatism, and/or hyperopia were included. Screen captures were obtained at the end of the flap creation and the eyes with hard type OBL were immediately imaged with anterior segment optical coherence tomography...
January 1, 2017: Journal of Refractive Surgery
https://www.readbyqxmd.com/read/28068440/a-prospective-study-to-compare-visual-outcomes-between-wavefront-optimized-and-topography-guided-ablation-profiles-in-contralateral-eyes-with-myopia
#19
Rohit Shetty, Rushad Shroff, Kalyani Deshpande, Roshan Gowda, Sumeet Lahane, Chaitra Jayadev
PURPOSE: To analyze refractive outcomes of wavefront-optimized (WFO) ablation and topography-guided custom ablation (TCAT) profiles using the Allegretto Wave excimer laser platform (Alcon Laboratories, Inc., Fort Worth, TX) in the treatment of myopia. METHODS: Sixty eyes of 30 patients who underwent LASIK were included in this prospective interventional study. WFO ablation was performed in one eye (WFO group) and TCAT in the fellow eye (TCAT group). The WaveLight FS200 femtosecond laser (Alcon Laboratories, Inc...
January 1, 2017: Journal of Refractive Surgery
https://www.readbyqxmd.com/read/28024631/gold-nanoparticle-filled-biodegradable-photopolymer-scaffolds-induced-muscle-remodeling-in-vitro-and-in-vivo-findings
#20
Adam Zsedenyi, Balazs Farkas, Gaser N Abdelrasoul, Ilaria Romano, Edina Gyukity-Sebestyen, Katalin Nagy, Maria Harmati, Gabriella Dobra, Sandor Kormondi, Gabor Decsi, Istvan Balazs Nemeth, Alberto Diaspro, Fernando Brandi, Szabolcs Beke, Krisztina Buzas
Therapeutic stem cell transplantation bears the promise of new directions in organ and tissue replacement, but a number of its difficulties and perils are also well known. Our goal was to develop a method of transplantation by which the transplanted cells remain confined to the transplantation site and induce favorable processes. With the help of mask-projection excimer laser stereolithography, 3D hybrid nanoscaffolds were fabricated from biodegradable, photocurable PPF:DEF resin with incorporated gold nanoparticles (Au NPs)...
March 1, 2017: Materials Science & Engineering. C, Materials for Biological Applications
keyword
keyword
71796
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"