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 70 for “"radiograph"”.
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Refining the role of the chest radiograph in paediatric tuberculosis clinical care and research
The proportion of individuals that die of tuberculosis (TB) each year that are children is disproportionately higher than the proportion of incident TB that is seen in children. This is largely due to limitations in the diagnosis of disease, with an estimated 95% of children dying from TB who went …
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Investigating the ability to use the CT scan projection radiograph to monitor adolescent idiopathic scoliosis
… was to investigate the use of scan projection radiograph (SPR) in computed tomography (CT) to assess AIS by quantifying radiation dose from the SPR acquisitions and comparing it to those of digital radiography (DR) and a dedicated scoliosis imaging system (EOS) and by evaluating the accuracy of …
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Synthesizing a complete tomographic study with nodules from multiple radiograph views via deep generative models
Chest radiography encodes a 3D anatomy into a complex 2D representation. This projection creates distinctive challenges even for the most experienced radiologists as many critical findings are superimposed, often resulting in error or further imaging. In particular, it is difficult to visualize the …
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"A-OK": Chest Radiograph During Primary Survey Facilitates Faster, More Accurate Endotracheal Tube Position in Injured Children
… Support (ATLS) algorithm typically postpones radiographic confirmation of endotracheal tube (ETT) placement until the end of the secondary survey. Correct ETT depth is critical in pediatric trauma. We hypothesized that bedside confirmatory techniques are inaccurate and that early chest x-ray …
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Inter- and intra-examiner reliability of lumbar spine radiograph analysis by chiropractors and its impact on clinical management
Submitted in partial compliance with the requirements for the Master’s Degree in Technology: Chiropractic, Durban University of Technology, Durban, South Africa, 2017.
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Does the Intra-operatively measured Leg Length Correction compare to the Post-operative radiograph in Total Hip Replacement surgery?
… the VMS accurately predicts the 6-week post op radiographic LLC measurement.
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The evaluation of the reproducibility of mock surgery using plaster model and lateral cephalometric radiograph in sagittal split ramus osteotomy
… outcome of surgery through lateral cephalometric radiograph and mock surgery using plaster model, surgical plan is established. After the surgery, the outcome of surgery is determined by analyzing the lateral cephalometric radiograph. In this study, by conducting the anterior-posterior comparison …
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Pictures in the substantiation of organisation: a study of radiology
… ways. From television to computer graphics and radiographs, a plethora of technologies offer visual experience of a kind available only through techno-scientific means. Using technical instruments requires constructs created by user’s and see-er’s. Language that evolves, is often interpretable …
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The impact of chest radiography on the diagnosis, clinical management and outcome of acute lower respiratory infections in children
Background. When available, chest radiography is widely used in acute lower respiratory infections in children. Its impact on clinical outcome is unknown. Methods. A randomised controlled trial was performed of 522 children aged 2 to 59 months who met the World Health Organisation case definition …
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Timing of alveolar cleft bone grafting in maxillary alveolar cleft defects
… to crown length, from a high quality pre-graft radiograph taken no more than six weeks prior to surgery. A Post-graph radiograph exposed approximately 2 years post-surgery was digitized to assess the final bony architecture.
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Effect of diabetes and HIV on radiographic manifestations of pulmonary tuberculosis
… diagnostic methods and tools. The chest radiograph remains a cornerstone in pulmonary tuberculosis diagnosis, especially in those where microbiological evidence of disease is lacking. A study was conducted to investigate the chest radiographic presentation of pulmonary tuberculosis in …
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Effect of Image Sharpening on Radiographic Image Quality
… that capture and processing of the digital radiographic images may contain artifacts that could reduce the diagnostic value of dental radiographs. This phenomenon has been reported through various case reports. However, its effect on radiographic image quality has not been studied. The …
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3- Dimensional analysis of true fracture plane for the proper fixation on lateral humeral condyle fracture in children
… patients were collected from 2003 to 2007. Radiographic classification was done. The angle formed by long axis of humerus and line between proximal point of fracture line and fracture line in the elbow joint in anteroposterior 3D-CT view and simple radiograph was defined as "alpha angle", as …
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Variation in treatment: an analysis of dental radiographs using matched patient provider data
… in a specific dental care treatment (dental radiographs) within NHS Scotland, with particular emphasis on the contribution of both dentist and patient unobserved heterogeneity. The thesis takes its focus from two strands of the literature; the underlying theoretical aspect draws on the …
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A Comparison of the Nance Holding Arch and Kloehn Headgear in Maxilliary Molar Anchorage
… loss and length of treatment (T<sub>1</sub> radiograph to cuspids retracted radiograph).</p> <p>The study showed that the upper molar position can be reliably traced and evaluated for anchorage loss.</p>
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Analysis of the Relationship Between Growth Hormone Receptor Polymorphism rs6180 and Craniofacial Morphological Changes Associated with Herbst Appliance Therapy
… treatment. An initial lateral cephalometric radiograph was taken along with two buccal cheek swabs. The cells obtained have undergone DNA isolation with the Puregene method in microcentrifuge tubes (Gentra Systems, Minneapolis, MN). Upon termination of functional appliance therapy …
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Viewpoint estimation in medical imaging
… the appearance of a certain body part on a radiograph depends not only on the position but also on the orientation of the X-ray imaging system with respect to the patient. Given a 2D image of a 3D scene, the problem of viewpoint estimation aims to determine the position and the orientation …
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Association of Nasal Septum Area and Deviation with Anteroposterior Maxillary Position and Facial Skeletal Asymmetries
… using the CBCT scan and a lateral cephalometric radiograph was created from the CBCT to evaluate the anteroposterior position of the maxilla. Second, nasal septum deviation was tested for association with frontal skeletal asymmetry. The absolute septal deviation (ASD) was calculated in the …
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Multi-Level Learning Approaches for Medical Image Understanding and Computer-aided Detection and Diagnosis
… approach is evaluated on a large-scale chest radiograph view identification task and a multi-class radiograph annotation task, demonstrating its improved performance in comparison with other state-of-the-art algorithms. It also achieves high accuracy and robustness against images with severe …
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Digital Dissection of Radiographs, Using the Early Cretaceous Bird Confuciusornis and Photoshop CS2TM
In the past, radiographs (x-ray "shadowgraphs") have been used by paleontologists as ways to identify and capture bone images. Primarily, this was done to examine the skeletal elements without having to remove the surrounding matrix. Radiographs have so much three-dimensional information …
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