Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 28 for “"Opacification"”.
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Clinical evaluation of the fixoflex® intraocular ring implant in posterior capsule opacification prevention and refractive outcome improvement
… θόλωση του περιφακίου (Posterior Capsular Opacification, PCO) παραμένει η συχνότερη μακροχρόνια επιπλοκή της χειρουργικής καταρράκτη και εξακολουθεί να επηρεάζει τα διαθλαστικά αποτελέσματα, παρά τις εξελίξεις στις χειρουργικές τεχνικές και στον σχεδιασμό των ενδοφακών (IOL). Η θόλωση του …
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A retrospective review of computed tomography pulmonary angiography image quality and the impact on diagnostic outcome at a tertiary South African hospital
… result from inadequate pulmonary artery contrast opacification, motion- or streak artefact as well as patient factors. Literature suggests that poor quality scans could lead to indeterminate outcomes and suboptimal clinical decisions with risk of increased mortality. Objective: The study aimed to …
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The action of selenite on ATP synthesis in rat lens
… rats produced a cataract within 72 hours. Lens opacification was preceded by a 15% decrease in ATP content. Lens ATP did not fully recover to control concentrations by 11 days post-injection. A moderate correlation existed between lens weight and total ATP content in control lenses <r=O.509, …
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PREVALENCE OF MAXILLARY SINUS PATHOLOGY IN PATIENTS AT TEMPLE UNIVERSITY SCHOOL OF DENTISTRY- A COMPARATIVE STUDY
… polypoidal mucosal thickening, partial opacification, or complete opacification. Results: The i-CAT viewing program revealed 193 (61.1%) scans with a healthy maxillary sinus presenting with mucosal thickening ≤ 3 millimeters, and 123 (38.9%) scans yielding various forms of maxillary …
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Regulation of Cataractogenesis in Culture Bovine Lenses by 5-Phenyldithiole-3-Thione-NSAID Hybrid Molecules
… ex vivo. Interestingly, H2O2 accelerated lens opacification in a concentration-dependent manner, achieving a significant (p<0.001) inhibition of 45.11% (10 mM; n=24) and 42.77% (50 mM; n=12) after 72 hours. Whereas ATB 343 (10-8 M, 10-7M & 10-6 M) partially attenuated H2O2 (10 mM)-induced loss …
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Exogenous Lipoid Pneumonia in Children: A Systematic Review and Case Series from South Africa
… Chest computed tomography revealed ground glass opacification with lower zone predominance (9/9) and interlobular septal thickening (8/9). All bronchoalveolar lavage specimens appeared cloudy/milky, with abundant lipid laden macrophages and extracellular lipid on Oil-Red-O staining and documented …
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Clinical Evaluation of RenografinR76% as a Contrast Medium in Urography
… of causing death in a few cases. Although renal opacification with most any of the dyes is usually quite satisfactory, it is their side effects that are most undesirable.
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Radiological predictors of PCP in HIV-positive adults in South Africa: a matched case-control study
… included. Diffuse versus patchy ground glass opacification was associated with increased odds of PCP diagnosis (adjusted odd's ratio (aOR) 6.2, 95% confidence interval (CI) 1.6 – 28.9, p =0.01) and severe PCP (aOR 4.5, 95%CI 1.6 – 14.4, p =0.008). Consolidation was associated with severe PCP …
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The management of corneal graft rejection
… and chickens but most grafts failed either from opacification or sepsis. His work, however, did stimulate debate over the feasibility of keratoplasty, but many were extremely sceptical including one of Berlin's great surgeons of the time, Dieffenbach. He wrote in 18312 that Reisinger's idea of …
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Vascular distribution of contrast medium during intraosseous regional perfusion in the equine distal limb
… the tourniquet. Maximum vessel and soft tissue opacification occurred in most specimens at 6 and 30 minutes, respectively. Serial radiography vessel patterns matched those of CT images and dissected specimens. Conclusions and Clinical Relevance — Intraosseous regional perfusion provides a …
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Radiological predictors of PCP in HIV-positive adults in South Africa: a matched case-control study
… included. Diffuse versus patchy ground glass opacification was associated with increased odds of PCP diagnosis (adjusted odd's ratio (aOR) 6.2, 95% confidence interval (CI) 1.6 - 28.9, p = 0.01) and severe PCP (aOR 4.5, 95%CI 1.6 - 14.4, p = 0.008). Consolidation was associated with severe PCP …
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Tear lacritin concentrations in canine keratoconjunctivitis sicca
… that can result in ocular discomfort, corneal opacification, and vision loss. Lacritin, a protein found in the tears of many species, has been shown to play a role in lacrimation and corneal health. Because of its role as a potential lacrimostimulant, assessment of endogenous lacritin levels …
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Effects of n-acetylcysteine amide in preventing/treating cataracts
<p>"Cataract, the opacification of an eye lens, is a common pathological abnormality of the lens accounting for approximately 50% of all blindness. The only effective treatment currently available for a cataract is the surgical removal of the affected lens and replacement with an artificial lens …
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Vergleichende Beurteilung verschiedener echokardiographischer und elektrokardiographischer Parameter zur Vorhersage der Erholung der linksventrikulären Funktion bei Patienten mit akutem St-Hebungsinfarkt
… by emergency angioplasty. Furher by resultant opacification scores evaluated by myocardial contrast echocardiography and remaining ST-elevations after angioplasty were regarded to the recovery of left ventricular function and the formation of a left ventricular remodeling. The identified …
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Modulation of Inflammation Driven Wound Healing after Glaucoma Surgery
… currently unanswered ophthalmological morbidity. Opacification and structure altering contractures compromise the delicate ocular anatomy upon which ocular function and healthy vision are reliant. Glaucoma filtration surgery, corneal stromal injury, proliferative vitreoretinopathy and age-related …
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The role of estrogen and superoxide dismutase in cataractogenesis
Cataract is an opacification of the eye lens, constituting the major cause of blindness globally. Oxidative stress is a key factor in the formation of cataract and female gender is a known risk factor for age-related cataract. The aim of this thesis was to investigate the role of estrogen and the …
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On detection, treatment and prevention of complications in paediatric cataract surgery
… secondary glaucoma (SG) and visual axis opacification (VAO), are performed in general anaesthesia in the child. Knowledge on detection, indication and treatment as well as complication rates and risks are important to make the right decisions. Methods: Data on diagnosis, treatment and …
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Effect of diabetes and HIV on radiographic manifestations of pulmonary tuberculosis
… had a higher proportion of lower lung field opacification (76,2%: 95% CI: 56,3 – 96,1) and were 3,92 times more likely to have LLF cavitations than patients with TB only. TBDM participants with HbA1c levels over 10% had more frequent LLF involvement overall (90,9% vs 61,9% p=0,052) and …
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Bedeutung der Kapsulorhexis für die Nachstarentwicklung und Nachstarverhütung
… Posterior capsule fibrosis and subsequent opacification (PCO) represents the most prevalent long-term complication of this treatment option and the objective of this study. MATERIALS AND METHODS: 38 patients following cataract extraction and phacoemulsification were included in this trial, …
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Insights into the structure and aggregation of lens crystallins and other aggregation-prone proteins
… proteins cause the loss of lens transparency (opacification) and cataract formation. Numerous congenital mutations and age-related changes to the long-lived alpha-, beta- and gamma-crystallins are associated with cataract and their study has provided insight into the molecular basis of this …
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