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A Transurethral Catheter-Based Ultrasound System for Multi-Modal Fusion
Anton Shkel, Shyam Natarajan, Stefan Schimpf, Martin O. Culjat, Andreas Brose, Axel Boese, Bertram Schmidt, Peter G. Schulam, Hua Lee, Warren Grundfest, Rahul Singh
Current methods of prostate cancer diagnosis and therapy rely on accurate imaging of the prostate using real-time ultrasound. Transurethral ultrasound (TUUS) may improve upon the current gold standard through improved 3D visualization and co-registration (fusion) with CT and MRI. A prototype transurethral ultrasound (TUUS) catheter-based transducer array and system was developed, featuring 32 elements with a diameter of 18F (6mm). A robust, multi-channel ultrasound transceiver was also developed to enable TUUS imaging using pulse-echo and frequency-based signal processing methods. The feasibility of a TUUS imaging system suitable for multi-modal image fusion and novel ultrasound signaling techniques was demonstrated.
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