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 14 of 14 for “"CBCT imaging"”.
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ARTIFICIAL INTELLIGENCE AVAILABLE TO THE DEVELOPMENT OF A VIRTUAL REALITY SOFTWARE FOR AN AUTOMATED CEPHALOMETRIC ANALYSIS OF ULTRA-REDUCED CBCT FOV
… and ultra-reduced cone-beam computed tomography (CBCT) fields of view (FOV) to develop a novel approach for automated cephalometric analysis in orthodontics. The study addresses key challenges such as enhancing diagnostic precision, ensuring radioprotection, and optimizing clinical workflows …
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Changes in Pharyngeal Airway Dimensions Due to MARA Treatment in Class II Malocclusions
… airway shape and volume. This study used CBCT imaging to identify what, if any, effects two different treatment modalities for correcting Class II malocclusions have on the pharyngeal airway volume. This retrospective study consisted of two groups of Class II patients: 38 patients (15 …
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Applications of cone beam computed tomography in radiotherapy treatment planning.
… (LINACs); these units are capable of 2D planar imaging, fluoroscopy and 3D Cone Beam Computed Tomography (CBCT) imaging. With CBCT imaging, the treatment plan can be modified based on patient’s anatomy just before the treatment session. This method of Adaptive Radiotherapy (ART) helps in …
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Automated AI Classification of Midpalatal Suture Maturation Stages Using Deep Learning Framework
… evaluation of cone beam computed tomography (CBCT) imaging, which can provide valuable insights into the anatomy of the suture. However, diagnosis of midpalatal suture maturation remains a tedious task that has poor reproducibility among evaluators. Artificial intelligence can reduce human …
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Evaluating The Impact Of Voxel Size On AI-Based Segmentation Accuracy For Pulp Chamber And Root Canal Detection: An In Vitro Study
… the influence of cone-beam computed tomography (CBCT) voxel size on the accuracy of artificial intelligence (AI)-based segmentation of pulp chambers and root canals, using high-resolution CBCT as the reference standard, and to assess the effect of tooth type on segmentation performance. Methods: …
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Four-Dimensional Imaging of Respiratory Motion in the Radiotherapy Treatment Room Using a Gantry Mounted Flat Panel Imaging Device
<p>Imaging respiratory induced tumor motion in the radiation therapy treatment room could eliminate the necessity for large motion encompassing margins that result in excessive irradiation of healthy tissues. Currently available image guidance technologies are ill-suited for this task. …
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Assessment of imaging dose from the kilovoltage cone beam computed tomography system on board the Varian Halcyon linear accelerator
Daily cone-beam computed tomography (CBCT) is mandatory for cancer patients receiving radiotherapy treatment using advanced techniques on the Varian Halcyon linear accelerator for setup verification, correction, and adaptation of the treatment plan. The frequent nature of imaging sessions mostly …
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Optimization of Image Guided Radiation Therapy for Lung Cancer Using Limited-angle Projections
… target localization and tracking. On-board imaging techniques, especially the x-ray based techniques, have found a great popularity nowadays for on-board target localization and tracking. With an objective to improve the accuracy of on-board imaging for lung cancer patients, the dissertation …
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Optimizing Kilovoltage Cone-Beam Computed Tomography for Image-Guided Radiation Therapy
Kilovoltage cone-beam computed tomography (kV CBCT) has important applications in image guided radiation therapy (IGRT). In its current state, CBCT is suboptimal for these applications due to its considerable radiation dose, poor soft-tissue contrast and inaccurate Hounsfield Units as a result of …
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CLINICAL AND RADIOGRAPHIC EVALUATION OF MARGINAL BONE RESORPTION OF ONE-PIECE IMPLANTS IN FULL ARCH REHABILITATIONS WITH FULL DIGITAL APPROACH: A PROSPECTIVE COHORT STUDY.
… phases. Through the use of intraoral scanning, CBCT imaging, and modular templates, the study demonstrated a significant reduction in surgical invasiveness, increased procedural accuracy, and enhanced patient outcomes. Guided surgery protocols, supported by 3D-printed templates, enabled precise …
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Prevalence of Bifid Mandibular Canals in a United States Dental School Population
… Retrospective analysis of 1,006 mandibular CBCT scans of patients treated at the Temple Kornberg School of dentistry were analyzed using Xelis software. Age, gender, ethnicity, and dentition status were recorded for each patient in the study. For each scan the right and left mandibular …
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Prediction of Root Form Using Crown Data: Mandibular Left First Premolar
… three planes of space.1-7 Data acquired through CBCT imaging provides an accurate representation of the teeth and their roots, but it comes at a cost of relatively high radiation exposure.22-38 For this reason, the use of CBCT and other radiographic modalities to analyze orthodontic treatment is …
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The prevalence of second canals in the mesiobuccal root of maxillary molars in a South African subpopulation : a cone beam computed tomography study
… (MB) roots. Conventional radiographic imaging techniques are unreliable for the detection of multiple canals, whereas cone beam computed tomography (CBCT) has proven to be effective for visualization of additional canals of root canal systems. There is little published data on the …
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CBCT Evaluation for Risk Analysis in Implant Placement: A Retrospective and Validation Study
… a dataset of 500 cone-beam computed tomography (CBCT) scans, with implants and natural teeth serving as anatomical reference points; (2) to quantify and compare longitudinal changes in buccal, lingual, and vertical bone dimensions in both anterior and posterior zones surrounding teeth and …