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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 24 for “"Computed tomographic"”.
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Computed Tomographic Imaging Spectrometry
A Computed Tomographic Imaging Spectrometer (CTIS) is an imaging spectrometer which can acquire a hyper-spectral data set in a single snapshot (one focal plane array integration time) with no moving parts. A specially designed dispersing element, which separates light from the three-dimensional …
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Three-dimensional Computed Tomographic Analysis of Normal Developmental Process of Cranial Sutures
최근 삼차원 전산단층촬영이 도입되어 머리뼈조기유합증이나 자세성머리쏠림증과 같은 영유아 머리뼈 이상의 진단에 많이 활용되고 있다. 그러나 진단의 기준이 되는 정상 머리뼈봉합 발달 과정의 삼차원 전산단층사진 소견에 대한 연구는 아직까지 미비한 실정이다. 이에 본 연구는 삼차원 전산단층촬영을 시행한 생후 12개월 이하의 영아 243명을 대상으로 시상봉합, 관상봉합, 시옷봉합 및 이마봉합 등 머리덮개뼈의 주요 봉합과 나비이마봉합, 나비마루봉합, 나비비늘봉합, 비늘봉합, 마루꼭지봉합, 뒤통수꼭지봉합 등 머리덮개뼈의 작은 봉합의 닫힘 과정을 …
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Resolving Details of the Nonbiomineralized Anatomy of Trilobites Using Computed Tomographic Imaging Techniques
… Devonian), Alnif, Morocco, were studied using computed tomographic (CT) and microtomographic (micro-CT) imaging techniques for evidence of nonbiomineralized alimentary structures. Specimens of E. kingii showing simple digestive tracts are complete dorsal exoskeletons preserved with cone-in-cone …
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Computed tomographic evaluation of safe corridors for pin placement in rabbit thoracolumbar vertebrae and sacrum
Submission published under a 24 month embargo labeled 'U of I Access', the embargo will last until 2025-12-01
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Computed Tomographic Studies of Characteristics of Selected Canine Lymph Nodes Relevant to Staging and Treatment of Solid Tumours
The overall objective of the three computed tomographic (CT) studies included in this manuscript-style thesis was to provide information which could improve clinical decisions regarding the staging and radiation treatment of pelvic limb and caudal abdominal tumours in dogs. Specific objectives of …
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Computed tomography of the thorax and abdomen of the clinically normal common marmoset (Callithrix jacchus)
The aim of this study was: 1) to describe the computed tomographic thoracic and abdominal anatomy in the clinically normal common marmoset; 2) to describe the normal reference range of Hounsfield units (HU) of major abdominal and thoracic organs; 3) to refine the computed tomography (CT) protocol; …
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The Effect of CT Display Window and Image Plane on Diagnostic Certainty for Characteristics of Canine Elbow Dysplasia
Computed tomography (CT) is an established diagnostic modality for evaluation of canine elbow dysplasia. However, diagnostic sensitivity for elbow abnormalities may be affected by variations in CT image quality. Currently there are no data-based recommendations for elbow CT image display …
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Flexural Behaviour of Steel Fibre Reinforced Concrete Tunnel Linings
… strength properties of the SFRC. Additionally, computed tomographic scanning was conducted to analyse and estimate the density fraction and fibre orientation of the fibres in SFRC cores. Three-dimensional finite element analyses were conducted to calibrate a concrete damage plasticity …
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The fate of proximally excluded iliac arteries following open repair of abdominal aortic aneurysms
… were measured in the 120 available preoperative Computed Tomographic (CT) angiograms. A single postoperative CT scan was performed and measurements recorded in 46 patients available for follow-up. The patients were grouped according to the type of surgical repair, open tube graft repair or …
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Evaluation of the Normal Equine Pituitary Gland
Computed tomography (CT) is becoming more available as a diagnostic tool in the evaluation of the equine skull and brain. Objectives of this study were: 1) refine a CT protocol for evaluating the equine pituitary gland, 2.) define the CT anatomy of the pituitary region, 3.) determine a set of …
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Feature Extraction and Feasibility Study on CT Image Guided Colonoscopy
Computed tomographic colonography(CTC), also called virtual colonoscopy, uses CT scanning and computer post-processing to create two dimensional images and three dimensional virtual views inside of the colon. Computer-aided polyp detection(CAPD) automatically detects colonic polyps and presents …
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COMPOSITE KERNEL FEATURE ANALYSIS FOR CANCER CLASSIFICATION
Computed tomographic (CT) colonography, or virtual colonoscopy, is a promising technique for screening colorectal cancers by use of CT scans of the colon. Current CT technology allows a single image set of the colon to be acquired in 10-20 seconds, which translates into an easier, more comfortable …
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Advanced Applications of Cardiac Computed Tomography for the Difficult-to-Image Patient
Throughout the development of computed tomographic (CT) imaging the challenges of capturing the heart, with its perpetual, vigorous motion, and in particular the tiny detail within the coronary arteries, has driven technological progress. Today, CT is a widely used and rapidly growing modality for …
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Image-Based Pore-Scale Modeling of Inertial Flow in Porous Media and Propped Fractures
… pore structures of real porous media from X-ray computed tomographic images. Rigorous pore-scale finite element modeling using unstructured mesh is developed and implemented in proppant fractures. The macroscopic parameters permeability and non-Darcy coefficient are obtained from simulations. The …
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Optimizing interventions for the treatment of vascular flow disruptions
… We compared paired pre and post procedural computed tomographic (CT) scans of patients who had severe adverse events with TAVR. A range of scenarios are considered and two patient cases are presented - with one normal deployment and the other with device buckling failure. The work highlights …
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Compressed Sensing Based Image Restoration Algorithm with Prior Information: Software and Hardware Implementations for Image Guided Therapy
… information of the volume of the on-board computed tomographic (CT) with limited-angle projections. Through the use of the algorithm, prior anatomical CT scans were used to provide additional information to help reduce radiation doses associated with the improved quality of the image volume …
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UNDERSTANDING ANATOMICAL PERFUSION AND STRATEGIES TO OPTIMIZE VASCULARITY IN FREE TISSUE TRANSFER FOR AUTOLOGOUS BREAST RECONSTRUCTION USING THE DEEP INFERIOR EPIGASTRIC ARTERY PERFORATOR (DIEP) FLAP
… anatomical studies, three and four-dimensional computed tomographic angiography (CTA) were used to evaluate patterns of the microvascular blood supply of individual perforators and corresponding perfusion patterns in the hemi-abdomen. This was combined with an in-vivo clinical study of women …
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High Saturated Fat Diet Induces Gestational Diabetes, Perinatal Skeletal Malformation and Adult-Onset Chronic Diseases
… of bone using three-dimensionally reconstructed computed tomographic image analysis (microCT) revealed microarchitectural changes of bone at birth, and at 6 and 12 months postnatally. Fetuses from HFD dams displayed diminished bone mineral density (BMD) and disrupted endochondral and …
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Comparison of echocardiography and computed tomography for characterization of cardiac clots in cats with heart disease
… (TEE) is the gold standard, however computed tomographic angiography (CTA) is becoming more widely used to assess detection of left atrial thrombi precluding the use of sedation. The purpose of this prospective study is threefold. The first objective is to compare echocardiography and …
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The palaeobiology of the late Permian dicynodont Endothiodon (Therapsida, Anomodontia)
… for the first time. In combination with micro-computed tomographic (µ-CT) scanning, a new approach of transversely sectioning each jaw at multiple levels of depth was employed, allowing the dental and alveolar bone microstructureto be described at varying depths in the jaw. The results show …
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