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.
Results
Showing 1 to 20 of 39 for “"Surgical planning"”.
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Advancing in heart surgical planning by using 3D printing technology
Fyrir skurðaðgerð getur verið erfitt að sjá fyrir sér flókna lífræðilega uppbygginu útfrá tvívíddar myndum. Árangursríkara er að nota nákvæm þrívíddarprentuð módel, sem sýna eiginleika svæðisins sem aðgerð skal gera á. Markmið þessarar rannsóknar er að þróa plan hjartaskurðaðgerða með hjálp …
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Development of image-based surgical planning software for bone-conduction implants
… certain anatomies, necessitating comprehensive surgical planning. Current techniques are time consuming and difficult to transfer to the operating room. The objective of this thesis was to develop software for calculating skull thickness to the dura mater to find locations for the FMT and to the …
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A system for surgical planning and guidance using image fusion and interventional MR
Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, February 2000.
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Evaluation of Virtual Surgical Planning Accuracy and Development of a Statistical Model for Soft Tissue Prediction in Orthognathic Surgery
L'abstract è presente nell'allegato / the abstract is in the attachment
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Computational Methodology for Generating Patient-Specific Soft Tissue Representations
… resulting in improved accuracy and relevance for surgical planning and implant design. The second study tackled the challenge of expediting the calibration of mechanical properties of the hip capsule to match patient-specific laxities. A statistical shape function model was proposed to generate …
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Quantitative comparison of functional MRI and electro-cortical stimulation for function mapping
… in the use of functional MRI for such pre-surgical planning, there is a nleed to validate that fMRI activation mrapping is consistent with the map)ppillg obtainled durinlg surgery with the standard technique, direct electro-cortical stimulationl. To this end, this thesis quanltitatively …
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Exploring the range of motion between the acetabular component and the femoral component in hip resurfacing
… and upper femur, for use by a surgeon in pre-surgical planning.
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Diagnostic Imaging of Foreign Bodies and Compartmentalization in the Canine Manus
… critical to minimize patient morbidity, guide surgical planning, and improve case outcomes. The anatomy of the canine manus was evaluated with computed tomography (CT), magnetic resonance imaging (MRI), and transverse anatomic sections. Most structures identified on transverse sections were …
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Segmentation of nerve bundles and ganglia in spine MRI using particle filters
… the spinal canal is important for diagnosis and surgical planning. The variability in intensity, contrast, shape and direction of nerves seen in high resolution myelographic MR images makes segmentation a challenging task. In this thesis, we present an automatic tracking method for segmentation …
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Quantitative multi-modal analysis of pediatric focal epilepsy
… with medically refractive focal epilepsy, surgical intervention to remove the epileptic foci is often the last alternative for permanent cure. The success of such surgery is highly dependent on the doctor's ability to accurately locate the epileptogenic region during the pre-surgical …
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Model driven segmentation and the detection of bone fractures
… at the production of simple iso-surfaces for surgical planning or diagnosis - such methods are not suitable for the automated detection of fractures. Our hypothesis is that through a model-based technique a triangulated surface representing the bone can be speedily and accurately produced. …
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A Proof-of-Concept Application of Principal Component Analysis For Identification of Anatomical Variations in Pharyngeal Flap Patients Experiencing Persistent Velopharyngeal Insufficiency
… failures are caused by a lack of personalized surgical planning, using generic placement locations for the pharyngeal flaps. The generic placement of pharyngeal flaps is an insufficient method due to anatomical differences found in the patients receiving these surgeries. This study developed a …
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Modification of the schenck classification of knee dislocations based on a global consensus study
… should allow communication among surgeons for surgical planning and outcome prediction. The energy-based classification and directional classification have been found inadequate in accurately classifying KD in a useful manner. Although the Schenck anatomic classification has improved on these …
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Finite Element Modeling of Patient-Specific Total Shoulder Arthroplasty
<p>Total Shoulder Arthroplasty (TSA) is a surgical procedure designed to improve joint functionality by replacing the articulation between the humeral head and the glenoid fossa. Anatomic Total Shoulder Arthroplasty (aTSA) and Reverse Total Shoulder Arthroplasty (rTSA) are two types of replacement …
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The use of personalised 3D-printed cranio-maxillofacial implants in future healthcare, with a focus on reconstruction of mandibular continuity defects
… development of novel, more effective and safer surgical techniques. <br/><br/>Methods<br/>A mixed-methods approach is adopted, including a critical review of the literature in general, and systematic review of the evidence base for printed titanium in mandibular reconstruction. A national …
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Automatic segmentation of magnetic resonance images of the brain
… of spatial relationships to aid in such tasks as surgical planning and clinical diagnoses, particularly when the segmented outlines from each image slice are displayed together as a surface in three-dimensions. A review of the literature indicates that current brain segmentation methods require a …
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Immobilization and Catheter Guidance for Breast Brachytherapy Using Patient-Specific Templates
… however, improvements in both treatment planning and delivery are needed. The procedure involves insertion of catheters in the tumor site, which, in current practice, is prone to clinically significant error. In order to improve on contemporary catheter placement accuracy, integration of …
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FMRI In Patients With Implanted Electrodes: Mitigating Imaging Artifacts
… remain hidden and potentially improving surgical planning and treatment outcomes for epilepsy patients.
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Late Complications in the Descending Aorta Following Valve-Sparing Root Replacement (VSRR) in Marfan Syndrome (MFS) Patients: A Computational Analysis
… aortic geometry, hemodynamic indices, and post-surgical dissection risk. We retrospectively analyze CT imaging of a cohort of MFS patients who underwent root surgery, divided into a “dissection group” and a “non-dissection group.” Due to the absence of 4D MRI data, we conduct sensitivity …
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EXPLORING PHYSIOLOGICAL, PATHOLOGICAL AND PARAPHYSIOLOGICAL BRAIN ACTIVITY ACROSS SCALES WITH SIMULTANEOUS INVASIVE AND NON-INVASIVE EEG
… of epileptic foci, which is critical for surgical planning in drug-resistant epilepsy cases. Second, the study investigates physiological brain responses to sensory stimuli using median nerve stimulation. Co-registration enabled the analysis of how brain signals propagate from primary …
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