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 25 for “"minimal invasive"”.
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White Light Endoscopy for Minimal Invasive Surgery
… devices to improve the benefits of endoscopic minimal invasive surgery even further.<br/><br/>Instruments used in the procedures are small for use in restrictive spaces, the investigation therefore is focused on not just producing high power white light, but to provide high power white light …
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Minimal-invasive endovaskuläre Therapie zerebraler Aneurysmen mittels Stents und selektiv ablösbarer Spiralen : eine tierexperimentelle Studie am Kaninchenmodell
The aim of this study was to use an animal model to investigate the different available therapies of intracranial aneurysms. We compared the established therapy with Guglielmi Detachable Coils and the combination with stent placement across the neck of the aneurysm and coiling though the stent …
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Chirurgische Therapie des primären Hyperparathyreoidismus : Untersuchungen zu Effizienz und Sicherheit der offenen minimal invasiven Parathyreoidektomie
Minimal invasive chirurgische Techniken zur Therapie des primären Hyperparathyreoidismus (pHPT) konkurrieren mit dem bisherigen Standardverfahren, der bilateralen zervikalen Exploration, sofern eine lokalisierte Eindrüsenerkrankung vorliegt. Zusätzlich vorhandene, operationspflichtige …
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Development of positioning devices for MRI-guided high intensity focused ultrasound (HIFU) for abdominal, thyroid and brain, tumours
… Lynn Zwemer [1]. HIFU has long been known as a minimal invasive or non-invasive procedure that destroys tissue through ablation. However, it is only in recent years that clinical applications are becoming feasible, with the development of high power ultrasound transducers compatible with the MRI …
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Entwicklung und Anwendung mobiler NMR-Sonden
… endoscope for use in medical examinations and minimal invasive interventions has been investigated. An operative NMR endoscope had been developed and test measurements had been performed successfully. The experiments prove that the radial measure concept of the NMR endoscope is suitable to …
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Wertigkeit bildgebender Verfahren zur Diagnosestellung und Therapieverlaufskontrolle der Spondylodiszitis
… after treatment. Therapeutically, conservative, minimal-invasive and operative procedure are not rival but rather complemantary.
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Schallfeldformung zur Reduzierung der Behandlungszeit bei der Therapie mit hochenergetischen fokussierten Ultraschallwellen
… high intensity focused ultrasound) ist eine minimal invasive Methode, Tumorgewebe lokal thermisch zu zerstören. Als Ultraschallquellen werden meist hoch fokussierende Ultraschallwandler verwendet, die nur geringe Ablationsraten zulassen, was bei großen Tumoren zu langen Behandlungszeiten …
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Maternal and cardiac output response to vasopressor therapy during spinal anaesthesia for Caesarean Section in severe preeclampsia
… measured in the left lateral position, using minimal invasive cardiac output monitoring (LiDCOrapid). A 300 mL colloid preload was then administered. After standard spinal anaesthesia, 20 patients whose mean arterial pressure decreased to a predetermined target value were randomised to 2 …
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Progress in synthetic materials for abdominal wall repair
… is facilitating reinforcement of the groin by a minimal invasive open surgical approach. Besides the technical advantages for the surgeon, the memory ring within the mesh has an influence on the inflammatory reaction and fibrosis formation during tissue integration, thereby limiting the mesh …
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Fluid Dynamics Characterization of Transcatheter Aortic Valves
… valve replacement (TAVR) was introduced as a minimal invasive treatment of severe aortic stenosis. Even though surgical aortic valve replacement (SAVR) is considered the golden standard treatment for severe aortic stenosis patients, TAVR showed equivalent or even superior outcome compare to …
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Scattering effects in the sound wave propagation of instrument soundboards
… and tone. Furthermore, specially prepared minimal-invasive piezoelectric polymer sensors made from polyvinylidene fluoride (PVDF) were used to record solid-state vibrations of the investigated system. The essential calibration and characterization of these polymer sensors was performed by …
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Experimentelle Untersuchungen am porzinen „over-sized coronary stent“-
… stents has been successfully practised in minimal invasive cardiology in the last two decades. Today almost all commercially coronary stents are made of stainless steel (316L) and there is a great variety in design and coatings available. Until now no interventional procedure has been …
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Botulinumtoxin A als mögliche therapeutische Option zur Behandlung der allergischen und idiopathischen Rhinitis - Ergebnisse einer randomisierten, doppelblinden, placebokontrollierten Studie
… Studie wurde die Wirkung einer lokalen, minimal-invasiven Anwendung (Schwämmcheneinlage) von Botulinumtoxin A an der Nasenschleimhaut auf die Symptome von Patienten mit idiopathischer oder allergischer Rhinitis untersucht. Die Patienten (n = 20) wurden randomisiert in zwei Gruppen …
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Advanced in situ hydrogel assembly for guiding molecular release
… I presented a bio patch delivery system with minimal invasive manner by using the self-folding and unfolding technique. I assembled the hydrogel patch with a sacrificial layer that can dissolve in media after a controlled time. This hydrogel patch self-folded into a compact tube shape and …
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New Designs of Electrochemical H2O2 Based Biosensors For Advanced Medical Diagnosis
… patients. The detection method could lead to a minimal invasive detection for breast cancer at home management, potentially minimize an unnecessary chemotherapy treatment for patients.
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Untersuchungen zur Melatoninrhythmik beim Hausschwein (Sus scrofa f. domestica) unter Anwendung einer neu entwickelten HPLC-Methode
… which requires the restraint of the animal by minimally invasive saliva sampling. The study was conducted on 12 domestic crossbred pigs aged 14 weeks (6 gilts, 6 barrows), which were housed in single pens under standardized conditions and under an equatorial lightregime (LD 12:12). Photophase …
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Zelltyp-spezifische Mikroanalyse von Arabidopsis thaliana-Blättern
Im ersten Teil der Arbeit wurden Strategien zur Analyse von Transkripten erarbeitet. Die ersten Versuche zielten darauf ab, in mit Glaskapillaren genommenen Einzelzellproben verschiedener Gewebeschichten RT-PCR durchzuführen, um spezifische Transkripte nachweisen zu können. Dies gelang für eine …
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Entwicklung multi-stimuli sensitiver Materialien auf der Basis von flüssigkristallinen Elastomeren
… von künstlichen Muskeln und Implantaten für die minimal invasive Chirurgie eine wichtige Rolle. Vor allem Formänderungs- und Formgedächtnispolymere stehen dabei im wissenschaftlichen Fokus. Während die kontaktlose Deformation einer permanenten Form in eine temporäre metastabile Form, …
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