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Abstract #0755

A novel RF-resonator for penile imaging

Evgeniy Alekseevich Koreshin1, Mikhail Zubkov1, Alexander Yurievich Efimtcev2, Alexandr Mikhailovich Gulko3, and Irina Valerievna Melchakova1
1Faculty of Physics and Engineering, ITMO University, Saint-Petersburg, Russian Federation, 2Department of Radiology, Federal Almazov North‐West Medical Research Center, Saint-Petersburg, Russian Federation, 31st urology department, City Center of Endourology and New Technologies, Saint-Petersburg, Russian Federation

We present a new design of a radiofrequency resonator for urological applications. The resonator functions by inductively coupling to the body coil of a 1.5 T MR-scanner. This configuration of the Tx-Rx path allows increasing the transmission efficiency and signal to noise ratio (SNR) while reducing the specific absorption rate (SAR). Phantom and in-vivo imaging shows that the resonator provides around 100-fold SAR reduction and 10-fold transmission efficiency increase. Phantom imaging shows doubled SNR compared to the commercial flexible 4-element Rx coil. In-vivo imaging shows only a 50% increase in SNR, improved patient positioning and reduced the artifacts rate.

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