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 19 of 19 for “"Radiopaque"”.
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A study in radiopaque polymeric materials
The problems associated with x-ray-transparent denture base are defined and conventional approaches to their solution are assessed. Consideration of elemental absorption parameters leads to the postulation that atoms such as zinc, and bromine, may be effective radiopacifiers over at least part of …
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Development of Novel hydrogels for protein drug delivery
… method. To further enhance the technology, radiopaque degradable PVA was synthesised, and degradation profiles were determined. Cell growth inhibition of modified PVA and degradable products were also investigated. Results: Redox initiation resulted in non-degradable PVA networks of …
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Fibrous dysplasia of the jaws: a clinical and panoramic radiographic evaluation at the University of the Western Cape oral health centre
… in the intermediate stage and becomes densely radiopaque as it matures. The margins are ill-defined, merging with surrounding normal bone. Maxillary lesions tend to displace the maxillary sinus whereas mandibular lesions tend to cause displacement of the inferior alveolar nerve canal. Expansion …
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Evaluation of the microcirculation of the equine small intestine following intramural distention and reperfusion
… segments were injected with a blue-colored radiopaque medium for microangiography and histology or a diluted methyl methacrylate (MERCOX CL-2B) for scanning electron microscopy. The distended segments had shortened villi that were separated by expanded crypts and mesothelial cell loss, …
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Fascial Spaces and Communicating Apertures Found in the Neck. A Visual Learning Module of The Retropharyngeal Space
… tomography (CBCT) images following injection of radiopaque materials into the RPS. This will lay the foundation of this learning module for the RPS. With appropriate data, a more detailed perspective of fascial spaces could be developed, which could a useful for future health and medical …
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The Merits of Improved Method to Opacify So-called "Nonfunctioning Gallbladder"
… bladder shadow following oral administration of radiopaque media is not always due to a diseased gall bladder but frequently it is due to faulty absorption of media from the intestinal tract or sometimes to a diseased liver or sometimes to faulty technique. | Nevertheless Kirklin stated that "it …
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MICRO-CT EVALUATION OF MSC/HUVEC/HSC-MEDIATED ANGIOGENESIS IN LARGE PCL-ßTCP CONSTRUCTS IMPLANTED IN NUDE MICE
… 8th week, mouse blood vessels were perfused with radiopaque microfil. The scaffolds were harvested, demineralized and analyzed for neovasculature by microcomputed tomography (micro- CT). The formation of microvasculature was significantly higher in the MSC-HUVEC and MSC-HSC constructs than those …
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Clinical Evaluation of RenografinR76% as a Contrast Medium in Urography
… could be made of internal organs by the use of radiopaque material. The first of the internal organs to be studied by this method was the gastro-intestinal tract by the use of a bismuth compound taken orally. This was done within two years from the time of Roentgen’s original work. | Almost at …
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Occlusion of the Internal Carotid Artery of Horses: Evaluation of a Technique Designed to Prevent Epistaxis Caused by Guttural Pouch Mycosis
… The balloon was inflated with 0.5 ml of a radiopaque solution. Correct placement and inflation of the balloon were confirmed by intraoperative radiography. The balloon was then released and the guiding and carrier catheters withdrawn. Immediate embolization of the distal internal carotid …
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The Use of NaI As A Novel Radiographic Contrast Material For Differentiating Between Cavitated and Non Cavitated Carious Lesions
… concentrated solution of NaI quickly produces a radiopaque region in cavitated but not in non-cavitated or sound teeth.
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Accuracy of Cephalometric Analyses and Tooth Movements of Conventional vs CBCT-Generated Cephalograms
… was potentially due to the superimposition of radiopaque structures and the greater density in the region of the maxillary first molar.</p>
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An In-Vitro Comparison of Microleakage With E. faecalis In Teeth With Root-End Fillings of Proroot MTA and Brasseler's EndoSequence Root Repair Putty
… shrinkage, be highly biocompatible, hydrophilic, radiopaque, and antibacterial due to a high pH during setting. Investigations on the sealing properties of this material have not yet been conducted. The purpose of this study was to compare the microbial leakage of Enterococcus faecalis in teeth …
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THE EFFECT OF DIETARY FIBRE ON HUMAN LIPID METABOLISM
… samples were collected throughout the study, and radiopaque faecal markers were given daily to ensure complete collection and measure intestinal transit time. 24 hour urine was collected on the last five days of each period during which the PABACHECK markers were taken (3xd). Urine samples were …
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A Qualitative and Quantitative Analysis of the Juvenile Ischium
… was found to increase rapidly to form a robust, radiopaque structure. Between 5 months and 2 years of age, there was a substantial decrease in the radiographic intensity of the ischium. This early period of bone loss may be linked to the dual action of the infant growth spurt, a period of …
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Production of Polyhydroxyalkanoates and their application for coronary stent development
… 90/10 blend was selected for the fabrication of radiopaque composites using addition of 1%, 3% and 5% wt barium sulphate. BaSO4 is well-known contrast agent, commonly used in biomedical applications. The composites were fully characterised with respect to material properties, surface topography …
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Improving Bioactivity and the Anti-Bacterial Properties of Two-Solution Bone Cement Containing Cross-Linked Polymethylmethacrylate (PMMA) Nanospheres (η-TSBC)
<p>The high viscosity standard two-solution bone cements (STSBC) developed in our laboratory exhibits several advantages over other commercial powder-liquid cement formulations. However, the high monomer concentration, viscosity, and exothermal temperature are considered a major limitation to the …
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The design and prototyping of a Transcatheter Aortic Valve Implantation training system specific for aortic valve regurgitation.
… was designed and coupled to a force gauge. Three radiopaque markers were inserted into cadaveric pig hearts connected to a pulsatile pump replicating the blood flow. The pull-force tool was inserted in the pumping heart anchored in the native leaflet and pulled to cause droop. The forces applied …