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 4 of 4 for “"X-ray projections"”.
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Registration of Tomographic Images to X-ray Projections for Use in Image Guided Interventions
This thesis contributes to knowledge by describing a new method to allow<br/>information from a pre-operative 3D modality to be used during an intervention which is guided using 2D fluoroscopy images. <br/><br/>An algorithm has been designed to obtain the pose of a CT volume with respect to a …
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Improved Calculation and Display for Dose Distributions Associated With Intrauterine Radiotherapy.
… the exact source positions from two orthogonal x-ray projections. The dosages delivered to reference points A and B are calculated. In addition, isodose curves are constructed on selected planes from which approximate three-dimensional dose distributions can be reconstructed.
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Distortion Correction in LODOX StatScan X-Ray Images
… of a method of distortion correction in x-ray images produced by the LODOX StatScan machine. The distortion correction of an object's x-ray image is of particular interest in the medical field, particularly for prosthetics, implants, and orthopedic work. It is useful to be able to take …
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Optimization of Image Guided Radiation Therapy for Lung Cancer Using Limited-angle Projections
… 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 work focuses on the investigations …