40 citations · 112 across the 8 of their papers we have counts for
10 papers
Long-Range Over-a-Meter NFC Antenna Design and Impedance Matching
Anton Kharchevskii, Ildar Yusupov, Dmitry Dobrykh +8
NFC and RFID technologies have seen significant advancements, with expanding applications necessitating the design of novel antenna structures that enhance range capabilities. This…
Improving B1 homogeneity in abdominal imaging at 3 T with light and compact metasurface
Vsevolod Vorobyev, Alena Shchelokova, Alexander Efimtcev +5
Radiofrequency field inhomogeneity is a significant issue in imaging large fields of view in high- and ultrahigh-field MRI. Passive shimming with coupled coils or dielectric pads i…
Deep learning-based fully automatic segmentation of wrist cartilage in MR images
Ekaterina Brui, Aleksandr Y. Efimtcev, Vladimir A. Fokin +8
The study objective was to investigate the performance of a dedicated convolutional neural network (CNN) optimized for wrist cartilage segmentation from 2D MR images. CNN utilized…
Ultrahigh field MR-imaging: new frontiers and possibilities
Mikhail Zubkov, Anna Andreychenko, Egor Kretov +6
Increasing the static magnetic field strength into the realm of ultrahigh fields (7 T and higher) is the central trend in modern magnetic resonance (MR) imaging. The use of ultrahi…
Locally Enhanced Image Quality with Tunable Hybrid Metasurfaces
Alena V. Shchelokova, Alexey P. Slobozhanyuk, Irina V. Melchakova +4
Metasurfaces represent a new paradigm in artificial subwavelength structures due to their potential to overcome many challenges typically associated with bulk metamaterials. The ab…
Small animal whole body imaging with metamaterial-inspired RF coil
Mikhail Zubkov, Anna Hurshkainen, Ekaterina Brui +6
Preclinical magnetic resonance imaging often requires the entire body of an animal to be imaged with sufficient quality. This is usually performed by combining regions scanned with…
A Parametric Study of Radiative Dipole Body Array Coil for 7 Tesla MRI
Anna A. Hurshkainen, Bart Steensma, Stanislav B. Glybovski +5
In this contribution we present numerical and experimental results of a parametric quantitative study of radiative dipole antennas in a phased array configuration for efficient bod…
A Novel Metamaterial-Inspired RF-coil for Preclinical Dual-Nuclei MRI
A. Hurshkainen, A. Nikulin, E. Georget +9
In this paper we propose, design and test a new dual-nuclei RF-coil inspired by wire metamaterial structures. The coil operates due to resonant excitation of hybridized eigenmodes…
Element Decoupling of 7T Dipole Body Arrays by EBG Metasurface Structures: Experimental Verification
Anna A. Hurshkainen, Tatyana A. Derzhavskaya, Stanislav B. Glybovski +4
Metasurfaces are artificial electromagnetic boundaries or interfaces usually implemented as two-dimensional periodic structures with subwavelength periodicity and engineered proper…
Enhancement of magnetic resonance imaging with metasurfaces
A. P. Slobozhanyuk, A. N. Poddubny, A. J. E. Raaijmakers +6
Magnetic resonance imaging (MRI) is the cornerstone technique for diagnostic medicine, biology, and neuroscience. This imaging method is highly innovative, noninvasive and its impa…