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 10 of 10 for “"Surgical navigation"”.
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Adaptive control of a tactile surgical navigation system
Während der chirurgischen Navigation werden die Abweichungen zwischen vorgeplanter Soll- und aktueller Ist-Position über einen Monitor visualisiert. Diese optische Rückkopplung zwingt den Chirurgen, den Blick ständig zwischen dem Operationsgebiet und dem Monitor zu wechseln. Besonders bei sehr …
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The Computation and Visualization of Uncertainty in Surgical Navigation
… measurement uncertainty in computer-assisted surgical procedures. Error is the difference between the observed or measured value and the true value (called ground-truth) of a quantity. Uncertainty is the unknown difference between the measured and true values, and exists in the absence of …
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New functional and biomechanical assessments for the improvement of the surgical navigation systems for joint replacement in the human lower limb
… all deformities and, thus, of limping. The knee surgical navigation systems have bee developed in computer-aided surgery in order to improve the surgical final outcome in total knee arthroplasty. These systems provide the surgeon with quantitative and real-time information about each surgical …
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MEDICAL IMAGE BASED PREOPERATIVE ANALYSIS AND INTRAOPERATIVE NAVIGATION
… to help surgeons for medical image analysis and surgical navigation, promoting the vigorous progress of precision medicine. This thesis mainly focuses on preoperative medical image analysis and image-based intraoperative navigation, and corresponding solutions have been proposed to cope with …
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Assessment of Bidirectional Compatibility between a Novel Magnetic Tracking System and C-Arm Fluoroscopy
… technique that is commonly used for guiding surgical interventions. The 2D projective nature of this modality is inherently associated with the loss of depth projection, making accurate placements of surgical instrumentation challenging. The integration of image-guided surgical navigation …
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Comparing Measured and Theoretical Target Registration Error of an Optical Tracking System
… of an optical tracking system used in commercial surgical navigation systems. We measure accuracy by constructing a mechanism that allows a tracked target to move with spherical motion (i.e., there exists a single point on the mechanism—the center of the sphere—that does not change position when …
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Text Prompt-Driven Medical Image Segmentation
… in accurate diagnosis, treatment planning, and surgical navigation by precisely identifying pathological regions. However, traditional segmentation methods typically rely on dense pixel-level annotations and heavy computational resources, which pose significant challenges for real-world clinical …
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Operating Room Awarness and Supervision in the Context of Laparoscopy
… edge of the trocar and of markers both on the surgical tools shaft and in the operating room. The first goals are to make surgeries cheaper and safer. Thanks to this system many different applications can be imagined: from the training of laparoscopist by the recognition of surgical procedure …
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Safe anatomy-driven tracking for navigation and robotics in medical and surgical procedures
… with greater precision. However, existing navigation systems are prohibitively expensive, infrastructure-heavy, and difficult to operate, especially in resource-limited settings. This thesis explores these challenges by introducing two novel robotic platforms that leverage state-of-the-art …