Publications by authors named "R Lattanzi"
Article Synopsis
- A new approach for real-time volumetric dynamic MRI of the wrist joint is introduced, aimed at improving the evaluation of wrist instability by tracking carpal bone motion during active movement.
- The study utilized a specialized wrist coil and 3D-printed support platform to capture high-quality 2D images, which were then assembled into dynamic 3D volumes for analysis.
- Results showed that the method provided high signal-to-noise ratio and accurate visualization of carpal bones, paving the way for advanced segmentation and quantitative assessment of wrist kinematics.
Purpose: To develop and characterize the performance of a 128-channel head array for brain imaging at 10.5 tesla and evaluate the potential of brain imaging at this unique, >10 tesla magnetic field.
Methods: The coil is composed of a 16-channel self-decoupled loop transmit/receive array with a 112-loop receive-only (Rx) insert.
PIFON-EPT: MR-Based Electrical Property Tomography Using Physics-Informed Fourier Networks.
IEEE J Multiscale Multiphys Comput Tech
December 2023
We propose Physics-Informed Fourier Networks for Electrical Properties (EP) Tomography (PIFON-EPT), a novel deep learning-based method for EP reconstruction using noisy and/or incomplete magnetic resonance (MR) measurements. Our approach leverages the Helmholtz equation to constrain two networks, responsible for the denoising and completion of the transmit fields, and the estimation of the object's EP, respectively. We embed a random Fourier features mapping into our networks to enable efficient learning of high-frequency details encoded in the transmit fields.
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- * Genetic variations (polymorphisms) in the PKs and PKR genes have been associated with conditions like infertility, neuroendocrine disorders, Hirschsprung's syndrome, central precocious puberty, and Kallmann syndrome.
- * The study aims to highlight how these genetic variations impact disease development and outcomes, positioning the PK system as a potential target for therapy and a marker for diagnosis in related health issues.
Article Synopsis
- The study aims to enhance ultrahigh-field brain imaging by evaluating the achievable signal-to-noise ratio (SNR) against the ultimate intrinsic SNR (uiSNR) at 10.5T, and exploring designs to improve SNR for better imaging results.
- A specialized 16-channel Tx/Rx array and a 64-channel receive-only array were created for use with the 10.5T MRI, with experiments confirming safe operational limits and comparisons of SNR at 10.5T and 7T.
- Results indicated that the technology can capture significant portions of uiSNR at 10.5T for high-resolution imaging, demonstrating its effectiveness for functional MRI, setting the stage for future advanced studies of the human