Results 61 to 70 of about 1,206,111 (210)
NMR in Biomedicine, Volume 39, Issue 9, September 2026.Fast 23Na MRI of the human calf at 7T was achieved by reducing nominal spatial resolution. Shorter measurement times can improve clinical feasibility of 23Na MRI while preserving reliable quantification of apparent tissue sodium concentration through partial volume, relaxation, and B0/B1 corrections.
Jordan M. Höhn +6 more
wiley +1 more source
Human Brain Mapping, Volume 47, Issue 11, 01 August 2026.In this study, we propose a multiscale spatiotemporal causal mapping (MSTCM) algorithm integrating multiscale functional connectivity and delay‐aware causal inference. Applied to resting‐state fMRI data, MSTCM reveals that taVNS reorganizes large‐scale brain networks by enhancing global integration efficiency while shifting information processing from ...
Weiyi Wang +5 more
wiley +1 more source
Medical Physics, Volume 53, Issue 8, August 2026.Abstract BackgroundIntravoxel incoherent motion (IVIM) diffusion‐weighted imaging has important value in treatment response monitoring. However, traditional voxel‐wise independent fitting methods are highly sensitive to noise and do not utilize spatial correlation, resulting in unstable parameter estimation. Although existing deep learning methods have
Yunxiang Li +4 more
wiley +1 more source
Toward an efficiently computable formula for the output statistics of MIMO block-fading channels [PDF]
, 2013 The information that can be conveyed through a wireless channel, with multiple-antenna equipped transmitter and receiver, crucially depends on the channel behavior as well as on the input structure.
Alfano, Giuseppa +3 more
core
On the Transmission of Double Watermarked Image over Rician FSO Channel [PDF]
, 2017 Performance analysis of double watermarked image transmission over the Rician turbulence FSO channel was carried out in this paper. First, we have considered the importance of copyright, robustness of watermark in FSO transmission and presented some ...
C. Spalevic, Petar +5 more
core +1 more source
Channel Estimation for Stacked Intelligent Metasurfaces in Rician Fading Channels
IEEE Wireless Communications Lettersaccepted in IEEE ...
Anastasios K. Papazafeiropoulos +3 more
openaire +3 more sources
Magnetic Resonance in Medicine, Volume 96, Issue 2, Page 986-995, August 2026.ABSTRACT Purpose The clinical feasibility and translation of many advanced quantitative MRI (qMRI) techniques are inhibited by their restriction to ‘research mode’, due to resource‐intensive, offline parameter estimation. This work aimed to achieve ‘clinical mode’ qMRI, by real‐time, inline parameter estimation with a trained neural network (NN) fully ...
Samuel Rot +13 more
wiley +1 more source
Dual Hop MIMO OSTBC Communication over Rayleigh-Rician Channel
, 2011 This paper investigates orthogonal space-time block coded transmission for a multiple-input multiple-output (MIMO) channel with non-coherent amplify-and-forward relaying in a situation where the source-relay and relay-destination channels undergo ...
M. Latva-aho +7 more
core +1 more source
Quantitative Guanidinium CEST‐Based pH Mapping at 3 T in Healthy and Pathological Muscle
NMR in Biomedicine, Volume 39, Issue 8, August 2026.Chemical exchange saturation transfer (CEST) enables high‐resolution pH mapping by measuring the exchange rate between guanidinium and water protons. The current method is based on the Z‐spectra fitting with Bloch–McConnell (BM) equations and allows us to detect pH variations on the order of 0.02 pH units in the very restrained pathophysiological pH ...
Valentin Henriet +4 more
wiley +1 more source