Tracking and Navigation Technologies for Image-Guided Trans-Arterial Interventions.

Abstract

Trans-arterial interventions are an increasingly utilized approach for diagnosing and treating a wide range of pathologies, providing superior patient outcomes compared to traditional open surgical methods. Recent advancements in tracking and navigation technologies have significantly refined these interventions, enhancing procedural precision and success. Advanced imaging modalities, such as fluoroscopy, cone beam computed tomography (CBCT), and intravascular ultrasound (IVUS), are frequently used strategies offering critical real-time guidance. Although fluoroscopy remains the primary choice for many procedures, advancements in CBCT and IVUS have enabled the delivery of detailed volumetric and intravascular imaging while reducing radiation exposure. Aiming to enhance imaging capabilities further, image fusion and augmented reality technologies show substantial potential for integrating multiple datasets into cohesive models, improving instrument tracking and spatial orientation during interventions. Innovations in navigation systems, including electromagnetic, fiberoptic, and robotic navigation, provide additional tracking capabilities for enhanced intra-arterial navigation. This article will review the current advancements in imaging, tracking, navigation, and image fusion technologies and explore their utility in enhancing trans-arterial interventions.