keyword
MENU ▼
Read by QxMD icon Read
search

eye reconstruction

keyword
https://www.readbyqxmd.com/read/29327365/millimeter-spatial-resolution-in-vivo-sodium-mri-of-the-human-eye-at-7-t-using-a-dedicated-radiofrequency-transceiver-array
#1
Daniel Wenz, Andre Kuehne, Till Huelnhagen, Armin M Nagel, Helmar Waiczies, Oliver Weinberger, Celal Oezerdem, Oliver Stachs, Soenke Langner, Erdmann Seeliger, Bert Flemming, Russell Hodge, Thoralf Niendorf
PURPOSE: The aim of this study was to achieve millimeter spatial resolution sodium in vivo MRI of the human eye at 7 T using a dedicated six-channel transceiver array. We present a detailed description of the radiofrequency coil design, along with electromagnetic field and specific absorption ratio simulations, data validation, and in vivo application. METHODS: Electromagnetic field and specific absorption ratio simulations were performed. Transmit field uniformity was optimized by using a multi-objective genetic algorithm...
January 12, 2018: Magnetic Resonance in Medicine: Official Journal of the Society of Magnetic Resonance in Medicine
https://www.readbyqxmd.com/read/29325183/validation-of-the-modified-surgeon-periorbital-rating-of-edema-and-ecchymosis-spree-questionnaire-a-prospective-analysis-of-facial-plastic-and-reconstructive-surgery-procedures
#2
Jeremie D Oliver, Deanna Menapace, Ahmed Younes, Chelsey Recker, Grant Hamilton, Oren Friedman
Although periorbital edema and ecchymosis are commonly encountered after facial plastic and reconstructive surgery procedures, there is currently no validated grading scale to qualify these findings. In this study, the modified "Surgeon Periorbital Rating of Edema and Ecchymosis (SPREE)" questionnaire is used as a grading scale for patients undergoing facial plastic surgery procedures. This article aims to validate a uniform grading scale for periorbital edema and ecchymosis using the modified SPREE questionnaire in the postoperative period...
January 11, 2018: Facial Plastic Surgery: FPS
https://www.readbyqxmd.com/read/29313062/art-or-science-an-evidence-based-approach-to-human-facial-beauty-a-quantitative-analysis-towards-an-informed-clinical-aesthetic-practice
#3
REVIEW
Harpal Harrar, Simon Myers, Ali M Ghanem
BACKGROUND: Patients often seek guidance from the aesthetic practitioners regarding treatments to enhance their 'beauty'. Is there a science behind the art of assessment and if so is it measurable? Through the centuries, this question has challenged scholars, artists and surgeons. AIMS AND OBJECTIVES: This study aims to undertake a review of the evidence behind quantitative facial measurements in assessing beauty to help the practitioner in everyday aesthetic practice...
January 8, 2018: Aesthetic Plastic Surgery
https://www.readbyqxmd.com/read/29309971/effect-of-cognitive-challenge-on-the-postural-control-of-patients-with-acl-reconstruction-under-visual-and-surface-perturbations
#4
Alexis Lion, Paul Gette, Christophe Meyer, Romain Seil, Daniel Theisen
Our study aimed to evaluate the effect of cognitive challenge on double-leg postural control under visual and surface perturbations of patients with anterior cruciate ligament reconstruction (ACLR) cleared to return to sport. Double-leg stance postural control of 19 rehabilitated patients with ACLR (age: 24.8 ± 6.7 years, time since surgery: 9.2 ± 1.6 months) and 21 controls (age: 24.9 ± 3.7 years) was evaluated in eight randomized situations combining two cognitive (with and without silent backward counting in steps of seven), two visual (eyes open, eyes closed) and two surface (stable support, foam support) conditions...
December 15, 2017: Gait & Posture
https://www.readbyqxmd.com/read/29305980/predictive-performance-and-inter-laboratory-reproducibility-in-assessing-eye-irritation-potential-of-water-and-oil-soluble-mixtures-using-the-short-time-exposure-test-method
#5
Takayuki Abo, Allison Hilberer, Christine Behle-Wagner, Mika Watanabe, David Cameron, Annette Kirst, Yuko Nukada, Takuo Yuki, Daisuke Araki, Hitoshi Sakaguchi, Hiroshi Itagaki
The Short Time Exposure (STE) test method is an alternative method for assessing eye irritation potential using Statens Seruminstitut Rabbit Cornea cells and has been adopted as test guideline 491 by the Organisation for Economic Co-operation and Development. Its good predictive performance in identifying the Globally Harmonized System (GHS) No Category (NC) or Irritant Category has been demonstrated in evaluations of water-soluble substances, oil-soluble substances, and water-soluble mixtures. However, the predictive performance for oil-soluble mixtures was not evaluated...
January 3, 2018: Toxicology in Vitro: An International Journal Published in Association with BIBRA
https://www.readbyqxmd.com/read/29285417/agreement-in-cone-density-derived-from-gaze-directed-single-images-versus-wide-field-montage-using-adaptive-optics-flood-illumination-ophthalmoscopy
#6
Avenell L Chew, Danuta M Sampson, Irwin Kashani, Fred K Chen
Purpose: We compared cone density measurements derived from the center of gaze-directed single images with reconstructed wide-field montages using the rtx1 adaptive optics (AO) retinal camera. Methods: A total of 29 eyes from 29 healthy subjects were imaged with the rtx1 camera. Of 20 overlapping AO images acquired, 12 (at 3.2°, 5°, and 7°) were used for calculating gaze-directed cone densities. Wide-field AO montages were reconstructed and cone densities were measured at the corresponding 12 loci as determined by field projection relative to the foveal center aligned to the foveal dip on optical coherence tomography...
December 2017: Translational Vision Science & Technology
https://www.readbyqxmd.com/read/29283945/computer-assisted-volumetric-analysis-and-quantitatively-anophthalmic-orbit-reconstruction-with-dorsalis-pedis-flap-and-bone-graft
#7
Li-Ying Cheng, Wei-Wei Bian, Xiao-Ming Sun, Zhe-Yuan Yu, Ying Zhang, Lu Zhang, Yu-Guang Zhang, Rong Jin
Current approaches to orbit reconstruction are based on the assumption of facial symmetry and surgeons' experiences, and the reconstructed orbits are not precise. Through computer-assisted volumetric quantitative analysis, the volume of the bony orbit, and the volume of the soft tissues in both the anophthalmic orbit and the contralateral orbit are calculated in 39 anophthalmic patients. The rib graft is used for orbit reconstruction; the dosalis pedis flap and lipo-injection were used for soft tissue reconstruction and skin socket reconstruction...
December 27, 2017: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/29275554/-estimation-of-external-features-of-eyes-for-the-adult-male-of-han-nationality-in-northeast-china-based-on-the-characteristics-of-skull
#8
G Y Xu, L Tian, J H Zhang
OBJECTIVES: To explore the correlation between the imaging parameters of skull and the external features of eyes. METHODS: Positive images of the head face and the frontal and lateral X-ray films were obtained from 101 cases of adult males of the Han nationality aged from 20 to 40 years old in Northeast China. The face width (x₁), upper face width (x₂), biorbital width (x₃), all facial height (x₄), upper facial height (x₅), maximum breadth of skull (x₆), minimum breadth of frontal bone (x₇), orbital widthⅡ(x₈), anterior interorbital breadth (x₉), maximum height of skull (x₁₀), minimum width of nasal bone (x₁₁) and orbital height (x₁₂) were measured and the data were statistically analysed...
October 2017: Fa Yi Xue za Zhi
https://www.readbyqxmd.com/read/29242989/prosthetic-supply-of-facial-defects-long-term-experience-and-retrospective-analysis-on-99-patients
#9
Giorgos Papaspyrou, Cansel Yildiz, Victoria Bozzato, Christopher Bohr, Mathias Schneider, Dietmar Hecker, Bernhard Schick, Basel Al Kadah
INTRODUCTION: Defects in the head region may be caused by tumour treatments, injuries, as well as congenital malformations. The restoration of these defects that can be performed through reconstructive plastic surgery and/or prosthetic surgery occupies a high priority in the physical and psychological rehabilitation of the patient. The present study reports on long-term experience in supply of facial prosthesis. MATERIALS AND METHODS: The medical records of 99 patients, who had been supplied with custom-made facial prostheses between 2001 and 2011, were evaluated retrospectively...
December 14, 2017: European Archives of Oto-rhino-laryngology
https://www.readbyqxmd.com/read/29238852/combined-in-depth-3d-en-face-imaging-of-the-optic-disc-optic-disc-pits-and-optic-disc-pit-maculopathy-using-swept-source-megahertz-oct-at-1050%C3%A2-nm
#10
Josef Maertz, Jan Philip Kolb, Thomas Klein, Kathrin J Mohler, Matthias Eibl, Wolfgang Wieser, Robert Huber, Siegfried Priglinger, Armin Wolf
PURPOSE: To demonstrate papillary imaging of eyes with optic disc pits (ODP) or optic disc pit associated maculopathy (ODP-M) with ultrahigh-speed swept-source optical coherence tomography (SS-OCT) at 1.68 million A-scans/s. To generate 3D-renderings of the papillary area with 3D volume-reconstructions of the ODP and highly resolved en face images from a single densely-sampled megahertz-OCT (MHz-OCT) dataset for investigation of ODP-characteristics. METHODS: A 1...
December 14, 2017: Graefe's Archive for Clinical and Experimental Ophthalmology
https://www.readbyqxmd.com/read/29237924/glaucoma-in-patients-with-eyes-close-to-areas-affected-by-port-wine-stain-has-lateral-and-gender-predilection
#11
Yue Wu, Ru-Jing Yu, Di Chen, Li Xu, Mao Li, Li Zhu, Chun-Yu Guo, Wen-Yi Guo
BACKGROUND: The location of facial port-wine stain (PWS) may be helpful for predicting some associated anomalies; high glaucoma incidence is found in patients with eyes close to PWS-affected areas (V1, ophthalmic branch area of the trigeminal nerve). This study aimed to investigate the characteristics of glaucoma in V1-affected PWS. METHODS: A total of 569 patients with V1 area-affected PWS were reviewed in the study. The large series was based on the referral system between the Department of Plastic and Reconstructive Surgery and the Department of Ophthalmology...
December 20, 2017: Chinese Medical Journal
https://www.readbyqxmd.com/read/29234230/traumatic-eye-ball-luxation-a-stepwise-approach-to-globe-salvage
#12
Himika Gupta, Srivalli Natarajan, Sushrut Vaidya, Shipra Gupta, Dinesh Shah, Raj Merchant, Shrikant Deshpande
Craniofacial trauma is often associated with orbital and ocular injuries. We report a case of a 21-year-old male with motor vehicular accident, orbital roof blow-in fracture, cerebrospinal fluid (CSF) leak, and left sided globe luxation with corneal abrasion and complete conjunctival denuding. The patient was managed by a multispeciality team and the eyeball was protected by amniotic membrane graft (AMG) biological dressing with novel use of inverted sterile metallic bowl as mechanical protection till the patient stabilized...
October 2017: Saudi Journal of Ophthalmology: Official Journal of the Saudi Ophthalmological Society
https://www.readbyqxmd.com/read/29231890/development-and-verification-of-a-novel-robot-integrated-fringe-projection-3d-scanning-system-for-large-scale-metrology
#13
Hui Du, Xiaobo Chen, Juntong Xi, Chengyi Yu, Bao Zhao
Large-scale surfaces are prevalent in advanced manufacturing industries, and 3D profilometry of these surfaces plays a pivotal role for quality control. This paper proposes a novel and flexible large-scale 3D scanning system assembled by combining a robot, a binocular structured light scanner and a laser tracker. The measurement principle and system construction of the integrated system are introduced. A mathematical model is established for the global data fusion. Subsequently, a robust method is introduced for the establishment of the end coordinate system...
December 12, 2017: Sensors
https://www.readbyqxmd.com/read/29210839/cataract-surgery-in-ocular-surface-diseases-clinical-challenges-and-outcomes
#14
REVIEW
Virender S Sangwan, Swati Gupta, Shilpa Das
PURPOSE OF REVIEW: Cataracts are a significant cause of blindness and visual impairment worldwide. With the recent advances in cataract surgery techniques, outcomes have improved significantly in uncomplicated cases. This article discusses the challenges and outcomes of cataract surgery in complex cases targeting eyes with ocular surface diseases like Stevens-Johnson syndrome, ocular cicatricial pemphigoid, Mooren's ulcer, vernal keratoconjunctivitis and limbal stem cell deficiency. RECENT FINDINGS: Ocular surface diseases are commonly associated with corneal scarring and vascularization, conjunctival inflammation, symblepharon and forniceal shortening...
January 2018: Current Opinion in Ophthalmology
https://www.readbyqxmd.com/read/29202348/upper-lip-reconstruction-using-a-pedicel-superficial-temporal-artery-flap
#15
Mohammad M Al-Qattan, Abdullah E Kattan
INTRODUCTION: The hair-bearing superficial temporal artery free flap has been used in men for total upper lip reconstruction. In this paper we present a case of a partial upper lip defect in a man that was reconstructed with a pedicle superficial temporal artery flap. PRESENTATION OF CASE: Following a car accident, a 35-year old man sustained a partial upper defect. The defect included the entire "outer lamella" (i.e. the skin and red lip) of the right hemi-lip as well as the outer part of the muscle (i...
November 24, 2017: International Journal of Surgery Case Reports
https://www.readbyqxmd.com/read/29195722/autologous-dermis-fat-grafts-as-primary-and-secondary-orbital-transplants-before-rehabilitation-with-artificial-eyes
#16
Sven Holger Baum, Claus Schmeling, Roman Pförtner, Christopher Mohr
OBJECTIVE: The aim of this study was to examine the role of autologous dermis-fat grafts in the reconstruction of orbital soft-tissue defects. PATIENTS: Thirty-six patients (3-84 years) were enrolled in this retrospective study from 2002 to 2014. The dermis-fat graft was primarily transplanted in seven cases, and secondarily in 29 patients. All the patients were evaluated for complications, adequate prosthetic cavity, possibility of artificial eye supply and movement, as well as cosmetic results...
October 26, 2017: Journal of Cranio-maxillo-facial Surgery
https://www.readbyqxmd.com/read/29190029/3d-histomorphometric-reconstruction-and-quantification-of-the-optic-nerve-head-connective-tissues
#17
Hongli Yang, Juan Reynaud, Howard Lockwood, Galen Williams, Christy Hardin, Luke Reyes, Stuart K Gardiner, Claude F Burgoyne
Accurately characterizing the 3D geometry of the optic nerve head neural and connective tissues has been the goal of a large and important body of scientific work. In the present report, we summarize our methods for the high-resolution, digital, 3D histomorphometric reconstruction of the optic nerve head tissues, including their visualization, parameterization, and quantification. In addition, we present our methods for between-eye comparisons of this anatomy, and their use to determine animal-specific and experiment-wide experimental glaucoma versus Control eye differences in the unilateral, monkey experimental glaucoma model...
2018: Methods in Molecular Biology
https://www.readbyqxmd.com/read/29189737/novel-artificial-tears-containing-cross-linked-hyaluronic-acid-an-in-vitro-re-epithelialization-study
#18
Arianna Fallacara, Silvia Vertuani, Giacomo Panozzo, Alessandra Pecorelli, Giuseppe Valacchi, Stefano Manfredini
Dry eye syndrome is a common disease which can damage the corneal epithelium. It is treated with eye drops to stimulate tear production and hydrate the corneal surface. The most prescribed artificial tear remedies contain hyaluronic acid (HA), which enhances epithelial wound healing, improving tissue health. To the best of our knowledge, only a few recent studies have investigated cross-linked HA (HA-CL) in eye drops for human applications. This work consists in an in vitro evaluation of the re-epithelialization ability of two different preparations containing a recently synthetized HA cross-linked with urea: 0...
November 30, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/29188648/-application-of-bone-grafts-from-chin-of-the-mandible-in-the-reconstruction-of-orbital-fracture
#19
Li Xiaoyu, Wu Jing, Du Xinya, Huang Jian, Wu Bin, Xie Chun
OBJECTIVE: To evaluate the clinical effects of bone graft from the mandible in repairing orbital floor defects. METHODS: Bone grafts from the mandible were used to treat 11 cases of orbital floor defects and followed up for 6-12 months. RESULTS: The surgical incisions healed primarily in all 11 patients. The orbital floor structure was restored. No vision loss, limited eye movement, implant infection, or resorption were observed postoperatively, and no complications occurred in the supply area...
October 1, 2017: Hua Xi Kou Qiang Yi Xue za Zhi, Huaxi Kouqiang Yixue Zazhi, West China Journal of Stomatology
https://www.readbyqxmd.com/read/29175499/visualization-of-porcine-eye-anatomy-by-x-ray-microtomography
#20
Bartosz Leszczyński, Paulina Sojka-Leszczyńska, Dorota Wojtysiak, Andrzej Wróbel, Roman Pędrys
The aim of our study is to obtain, as accurately as possible, porcine ocular tissue visualization using microtomography (micro-CT) method. We propose image contrast enhancement by different staining procedures with combination of micro-CT scanning. Porcine eye globes were investigated with Bruker-SkyScan 1172 micro-CT. We used 4F1G and Bouin's as sample fixation solutions and tincture of iodine, 100% Lugol, phosphotungstic acid and 1% osmium tetroxide solutions for staining. Quantitative and qualitative analysis was performed based on micro-CT reconstruction images histograms and 3D volume rendering models of investigated samples...
November 22, 2017: Experimental Eye Research
keyword
keyword
34657
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"