Results 201 to 210 of about 466,978 (244)

An Adaptive Metasurface for Adjustable Magnetic Resonance Imaging Enhancement at 3 T and 7 T: A Feasibility Study

open access: yesMagnetic Resonance in Medicine, EarlyView.
ABSTRACT Purpose Ultra‐high field (≥ 7 T) and 3 T MRI suffer from B1+ inhomogeneity and signal loss. Conventional metasurfaces that mitigate B1+ inhomogeneity and improve image SNR are “fixed” in nature and designed for a single Larmor frequency. This study demonstrates the feasibility of an adaptive metasurface utilizing voltage‐controlled capacitors ...
Paul S. Jacobs   +7 more
wiley   +1 more source

Toward Brain Biosignature at 7 T—Repeatability of a Multiparametric CEST, QSM, QTI, and Sodium Imaging Protocol

open access: yesMagnetic Resonance in Medicine, EarlyView.
ABSTRACT Purpose To evaluate the repeatability of an extended multiparametric 7 T MRI protocol for voxel‐wise tissue characterization combining morphological, CEST, QSM, QTI, and Sodium contrasts. Methods A repeatability study was performed in 12 volunteers without diagnosed neurological disease on a 7 T MRI system, using a comprehensive acquisition ...
Annika Hofmann   +30 more
wiley   +1 more source

Rotating Frame Spin‐Lock Cardiac MRI Method at 9.4 T Can Characterize Diffuse Fibrosis in Progressing Hypertensive Heart Disease in Mice

open access: yesMagnetic Resonance in Medicine, EarlyView.
ABSTRACT Purpose This study aimed to investigate the applicability of rotating frame spin‐lock continuous wave (CW) T1ρ and relaxation along a fictitious field with Rank 2 (RAFF2) methods complementary to native T1 and late gadolinium enhancement (LGE) for cardiac magnetic resonance imaging (CMRI) of diffuse fibrosis in mice with advancing hypertensive
Riku Kiviluoto   +8 more
wiley   +1 more source

Skin boosters: Definitions and varied classifications.

open access: yesSkin Res Technol
Yi KH   +8 more
europepmc   +1 more source

Syphilitic uveitis misdiagnosed as viral retinitis-a misleading history. [PDF]

open access: yesJ Ophthalmic Inflamm Infect, 2018
Agarwal M, Ranjan R, Paul L, Sharma D.
europepmc   +1 more source

Improving Voice Outcomes After Transoral Laser Surgery for Early Glottic Cancer: A Systematic Review

open access: yesOtolaryngology–Head and Neck Surgery, EarlyView.
Abstract Objective To determine which intraoperative and postoperative interventions improve voice outcomes following transoral laser microsurgery (TLM) for early‐stage glottic squamous cell carcinoma (T1‐T2). Data Sources English literature was searched on PubMed, OVID Medline, CINAHL, Embase, and Scopus. Review Methods PRISMA guidelines were followed.
Jamie T. Koscak   +8 more
wiley   +1 more source

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