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ConoSurf

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A major diffculty in image guided therapy (IGT) is acquiring the patient's anatomy intraoperatively, which can be used for registering preoperative information. Intraoperative use of standard modalities has several limitations, such as low image quality (ultrasound), radiation exposure (computed tomography) or high costs (magnetic resonance imaging). An alternative approach is using a tracked pointer and registering the acquired points to surfaces identified in preoperative images.