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arXiv · 2307.14288

US \& MRI Image Fusion Based on Markerless Skin Registration

Martina Paccini·Giacomo Paschina·Stefano De Beni·Andrei Stefanov·Velizar Kolev·Giuseppe Patanè
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Abstract

This paper presents an innovative automatic fusion imaging system that combines 3D CT/MR images with real-time ultrasound (US) acquisition. The system eliminates the need for external physical markers and complex training, making image fusion feasible for physicians with different experience levels. The integrated system involves a portable 3D camera for patient-specific surface acquisition, an electromagnetic tracking system, and US components. The fusion algorithm comprises two main parts: skin segmentation and rigid co-registration, both integrated into the US machine. The co-registration software aligns the surface extracted from CT/MR images with patient-specific coordinates, facilitating rapid and effective fusion. Experimental testing in different settings validates the system's accuracy, computational efficiency, noise robustness, and operator independence. The co-registration error remains under the acceptable range of~$1$ cm.

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Martina Paccini, Giacomo Paschina, Stefano De Beni, Andrei Stefanov, Velizar Kolev, Giuseppe Patanè. 2023-07-26. US \& MRI Image Fusion Based on Markerless Skin Registration. https://arxiv.org/abs/2307.14288

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