Augmented reality guidance for spinal surgery with stereoscopic displays and magnified views

Smart overview of the Invention

Augmented reality technology is being integrated into spinal surgery to enhance the surgeon's ability to visualize the patient's anatomy during procedures. This method utilizes real-time three-dimensional surface reconstruction to provide a stereoscopic augmented view that combines preoperative images with live video feeds. By employing stereoscopic cameras, surgeons can see a blend of graphical representations of internal structures and the actual patient, improving their situational awareness and precision during surgery.

Challenges in Traditional Surgical Navigation

Surgeons traditionally face challenges when navigating between a patient and a separate monitor displaying anatomical information, leading to potential inaccuracies in their mental mapping of target structures. Existing systems that attempt to merge live video with computer-generated models often struggle with issues related to the precision and speed of image registration. These limitations highlight the need for more effective navigation systems that seamlessly integrate real-time imaging with virtual graphics.

Real-Time Navigation System Features

The proposed system features a stereoscopic camera setup that provides real-time images, allowing for accurate tracking of the patient's anatomy. By utilizing a head-mounted display, surgeons can view augmented images directly overlaid on the patient, enhancing depth perception and spatial awareness. The system allows for real-time adjustments by the surgeon, enabling modifications to image transparency, color, and contrast based on their preferences during surgery.

Interactive User Experience

Surgeons can interact with the augmented reality system through gesture recognition methods, facilitating a more intuitive experience. The technology allows for independent processes for surface reconstruction and image registration, which can be adjusted dynamically as needed. This flexibility ensures that surgeons can maintain focus on the patient while accessing critical anatomical information without distraction.

Integration of Preoperative Imaging

The system is designed to register preoperative images with real-time video feeds without requiring physical markers, streamlining the registration process. By capturing a 3D surface and aligning it with volume-rendered images from CT or MR scans, the technology provides accurate visualizations that are crucial for effective surgical planning and execution. This integration enhances the overall surgical experience, potentially improving outcomes for patients undergoing spinal surgery.