Results 221 to 230 of about 959,350 (322)

FACILITATING TREATMENT OF PULMONARY ATRESIA WITH RADIOFREQUENCY (RF) ENERGY WITHOUT RF CATHETER PERFORATION

open access: yesJournal of the American College of Cardiology, 2010
Coe, James Y.   +2 more
openaire   +1 more source

First 20 Years of Orbitrap Mass Spectrometry as the Mainstream Analytical Technique

open access: yesMass Spectrometry Reviews, Volume 45, Issue 6, Page 1064-1086, November/December 2026.
ABSTRACT This review traces the first 20 years of Orbitrap mass spectrometry as a mainstream high‑resolution and accurate‑mass (HR/AM) technology. It outlines the historical development of the Orbitrap analyzer, the evolution of major instrument families, and the key technological innovations that enabled its widespread adoption. Particular emphasis is
Alexander Makarov
wiley   +1 more source

RADIOFREQUENCY THERAPY IN PATIENTS WITH OSTEOARTHRITIS AWAITING KNEE ARTHROPLASTY. [PDF]

open access: yesActa Ortop Bras
Martins GCDS   +4 more
europepmc   +1 more source

Fast Localized Calibration for Spatial‐Spectral Excitation Without Fly‐Back Gradients

open access: yesMagnetic Resonance in Medicine, Volume 96, Issue 5, Page 2253-2265, November 2026.
ABSTRACT Purpose Standard spatial‐spectral excitation pulses apply a fly‐back gradient between sub‐pulses, limiting, for example, how thin the slices can be (> 4 mm). Without fly‐back gradients, slices can be as thin as 1.7 mm but require a phase calibration for the sub‐pulses with inverted gradients due to system imperfections.
Michael Schär   +3 more
wiley   +1 more source

Regularized Joint Reconstruction and Slab Combination for Accelerated Three‐Dimensional Multi‐Slab Diffusion‐Weighted Imaging Using Multi‐Scale Energy Models

open access: yesMagnetic Resonance in Medicine, Volume 96, Issue 5, Page 2321-2335, November 2026.
ABSTRACT Purpose To jointly reconstruct high‐resolution diffusion‐weighted volumes and eliminate slab‐boundary artifacts while preserving fine anatomical detail from undersampled 3D multi‐slab k‐space acquisitions. Methods A bilinear forward model was formulated to describe the 3D multi‐slab acquisition, treating the image volume and slab excitation ...
Reza Ghorbani   +4 more
wiley   +1 more source

Global research trends on RF-EMR and reproductive health: Bibliometric insights and mechanistic review. [PDF]

open access: yesBiochem Biophys Rep
Gautam R   +6 more
europepmc   +1 more source

Enhanced Transmit Efficiency of a Loop Array Combined With Out‐of‐Phase Passive Dipoles for Thoracic Spinal Cord MRI at 7T

open access: yesMagnetic Resonance in Medicine, Volume 96, Issue 5, Page 2539-2552, November 2026.
ABSTRACT Purpose The design of radiofrequency (RF) coils tailored for the target anatomy is necessary to overcome the transmit field homogeneity and penetration issues at Ultra‐High‐Field (UHF). For the spinal cord, the optimal design has not yet been determined. This work intends to demonstrate the added value of a pair of passive dipoles placed under
Hugo Amat   +10 more
wiley   +1 more source

In Vivo 31P‐MRS of the Human Orthotopic Kidney at 3 Tesla

open access: yesNMR in Biomedicine, Volume 39, Issue 11, November 2026.
31P‐MRS of healthy human orthotopic kidneys at 3T yielded improved spectral quality within a clinically feasible scan time. The resulting summed spectrum characterizes normal renal phosphorus metabolism and may serve as a reference for detecting metabolic alterations associated with kidney disease and transplantation.
Eva Carlsson   +5 more
wiley   +1 more source

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