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 124 for “"endoscopy"”.
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Multiphoton Endoscopy
Multiphoton microscopy has the potential to be a versatile tool for clinical disease diagnosis and treatment, providing numerous benefits over current practices involving the histopathological analysis of biopsies. Specifically, multiphoton excitation has the unique ability to generate fluorescence …
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Endoscopy for affine Hecke categories
We show that the neutral block of the affine monodromic Hecke category for a reductive group is monoidally equivalent to the neutral block of the affine Hecke category for the endoscopic group. The semisimple complexes of both categories can be identified with the generalized Soergel bimodules via …
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White Light Endoscopy for Minimal Invasive Surgery
Endoscopy has become a very advantageous medical procedure particularly for investigative and operational surgery for cancer. The preferred method over open surgery, it offers the advantages of less invasion with shorter operation time, less trauma to the patient and quicker recovery time. The …
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Advanced fibre-based endoscopy for biophotonics applications
Despite the tremendous advances witnessed in light microscopy over the past two decades, non-invasive optical imaging is still limited to penetration depths smaller than 1 mm into tissue. Multiple scattering caused by the refractive index inhomogeneities of biological matter rapidly distort any …
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Conformal antenna-based wireless telemetry system for capsule endoscopy
Capsule endoscopy for imaging the gastrointestinal tract is an innovative tool for carrying out medical diagnosis and therapy. Additional modalities beyond optical imaging would enhance current capabilities at the expense of denser integration, due to the limited space available within the capsule. …
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Imaging through optical multimode fiber: towards ultra-thin endoscopy
… high speed, and minimal invasiveness. Endoscopy in particular has revolutionized healthcare diagnosis and treatment as well as biological research by offering visual access to otherwise unreachable remote tissues. However, existing endoscopic modalities face fundamental limitations in …
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An interactive virtual endoscopy tool with automotive path generation
Thesis (M.Eng.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 2002.
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Development of a Platform for Surface Enhanced Raman Scattering Endoscopy
… imaging in-vitro using two clinically available endoscopy platforms. Together these results have demonstrated the potential utility of SERS endoscopy in cancer imaging and have established a roadmap to future clinical translation in specific oncologic fields.
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Endoscopy-focused primary, secondary and tertiary prevention of colorectal cancer
… Lyell McEwin Hospital (South Australia), morning endoscopy lists were associated with better detection and ADQ was a reliable predictor of ADR. With respect to secondary prevention, I undertook several studies. The main aim of these studies was to assess advanced endoscopic imaging (e.g. narrow …
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Using ultrasound as a communication scheme for wireless capsule endoscopy
Wireless capsule endoscopy (WCE) has been established as an alternative to traditional video endoscopy because it has several advantages over traditional methods. For example, it can ameliorate the suffering of patients as it does not need intubation, and it can examine the whole small intestine, …
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3D ENDOSCOPY VIDEO GENERATED USING DEPTH INFERENCE: CONVERTING 2D TO 3D
… rst cue used to nd the darkest regions in the endoscopy images in order to locate the vanishing point(s). The second cue is the presence of ridge-like structures in the in-vivo images of the endoscopy image sequence. Edge detection is used to map these ridge-like structures into concentric …
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Assessment and improvement of access and quality in lower gastrointestinal endoscopy
Quality assurance in lower gastrointestinal endoscopy (LGE) is gaining increasing attention. Simultaneously, there is an increasing demand for LGE. The overall aims of this thesis were to identify methods of improving both the availability and the technical quality of LGE in the National Health …
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The Detection of Gastrointestinal Inflammation with Microultrasound and The Feasibility of Ultrasound Capsule Endoscopy
… the feasibility of ultrasound capsule endoscopy (USCE) utilised explanted human tissue, in vivo pig trials and mouse experiments. Human tissue experiments were aimed at identifying a suitable µUS frequency for USCE and examining the relationship between acoustic and histologic bowel …
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Capsule endoscopy versus standard of care in obscure gastrointestinal bleeding: A randomized controlled trial
… usually involves performing a bidirectional endoscopy. When negative, the small bowel could be the source of obscure gastrointestinal bleeding presenting as IDA. The next best diagnostic test is uncertain. Wireless capsule endoscopy (WCE) is a non-invasive new technology that allows …
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What do endoscopy nurses believe is necessary for a Nurse Endoscopist role to develop in New Zealand?
… the current levels of practice of New Zealand endoscopy nurses including education level, experience in the specialty and demographics of the current endoscopy nursing workforce • document the level at which endoscopy nurses aspire to practice in the future and what endoscopy nurses see as the …
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A Retrospective review of medical gastrointestinal endoscopy in children attending Red Cross War Memorial Children’s Hospital, Cape Town
Background: Gastrointestinal endoscopy has evolved to become an important diagnostic, therapeutic as well as surveillance and follow-up modes of management in children with diverse gastrointestinal diseases. There is a paucity of data on gastrointestinal endoscopy in children in the sub- Saharan …
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How accurate is translaryngeal ultrasound when compared to flexible nasal endoscopy in viewing vocal cord mobility in children?
Objectives: Flexible fibreoptic laryngoscopy (FFL) is currently the gold standard for assessment of true vocal cord (TVC) mobility but is invasive and not without risk. The COVID-19 pandemic has led to growing interest in assessment tools that avoid aerosol generation and risk for transmission of …
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An autocorrelator-interferometer used to determine the pulse width of a pulsed laser used in two-photon endoscopy
… pulse width of pulse laser used in two photon endoscopy. The path length of the light was altered using a retro-reflecting corner cube attached to a 6880 galvanometer optical scanner controlled by a 671 series micro-max controller (both products by Cambridge Technologies Inc.) The scanner was …
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Predictors of good outcome in upper gastrointestinal bleeding (UGIB)
… associated with peptic ulcer complications. Endoscopy and endotherapy have improved outcome in patients with continued or recurrent bleeding. Clinical Predictors of Outcome: Despite improved technology in the management of upper gastrointestinal bleeding (UGIB), mortality has remained high. …
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Longer Right Colon Withdrawal Time and Retroflexion Duration Significantly Increases Adenoma Detection Rate: A Randomized Controlled Trial at Three Endoscopy Centers
Purpose Detection of adenomas is the foundation of colorectal cancer screening utilizing screening colonoscopies. Adenoma detection rate (ADR) is an increasingly utilized core quality measure for colonoscopies. Colonoscopy is an effective tool to prevent colon cancer but missed lesions can lead to …
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