Results 221 to 230 of about 3,528,592 (348)

Quantifying Cardiac, Respiratory, and Low Frequency Components of CSF Motion From fMRI Inflow Effects

open access: yesMagnetic Resonance in Medicine, EarlyView.
ABSTRACT Purpose Cerebrospinal fluid (CSF) flow oscillations have emerged as a potentially important marker related to brain clearance, but their acquisition often relies on specialized imaging MRI sequences. The purpose of this work was to enable quantitative assessment of CSF flow associated with cardiac, respiratory, and low‐frequency cycles using ...
Pontus Söderström   +5 more
wiley   +1 more source

Active Electromagnetic Interference Suppression for MRI and Proton Resonance Frequency Shift Thermometry During MRI‐Guided Microwave Ablation

open access: yesMagnetic Resonance in Medicine, EarlyView.
ABSTRACT Purpose To develop a software‐based active electromagnetic interference (EMI) suppression (AES) framework on whole‐body multi‐channel MRI systems for reliable MRI and MR thermometry during MRI‐guided microwave ablation (MWA). Methods In addition to primary imaging coils, an unloaded standard body array coil was positioned outside the imaging ...
Qing Dai   +5 more
wiley   +1 more source

A Modified Balanced Steady State Free Precession Sequence for Overhauser Magnetic Resonance Imaging

open access: yesMagnetic Resonance in Medicine, EarlyView.
ABSTRACT Purpose Low‐ and ultralow‐field magnetic resonance imaging (ULF MRI) have inherently low signal‐to‐noise ratio (SNR) by design. Overhauser dynamic nuclear polarization (ODNP) stands out as an effective solution for continuous signal enhancement.
Kai Buckenmaier   +9 more
wiley   +1 more source

Benign thyroid nodules treatment using percutaneous laser ablation (PLA) and radiofrequency ablation (RFA)

open access: yesInternational Journal of Hyperthermia, 2017
G. Mauri   +10 more
semanticscholar   +1 more source

Laterally Oscillating Trajectory for Undersampling Slices: LOTUS

open access: yesMagnetic Resonance in Medicine, EarlyView.
ABSTRACT Purpose While spiral sampling offers SNR advantages for diffusion MRI, its acceleration with simultaneous multislice remains relatively unexplored. This study introduces Laterally Oscillating Trajectory for Undersampling Slices (LOTUS), which is a 3D spiral‐like k‐space trajectory that aims to minimize g‐factor via controlled incoherent ...
Mayuri Sothynathan   +2 more
wiley   +1 more source

Design of an 8‐Channel Transmit 32‐Channel Receive 11.7T Head Coil and Evaluation of SNR Gains

open access: yesMagnetic Resonance in Medicine, EarlyView.
ABSTRACT Purpose To design and develop an 8‐channel transmit 32‐channel receive 11.7T head coil for the strongest human MRI scanner to date, demonstrate safety, and evaluate signal‐to‐noise ratio (SNR) gains compared to 7T, the most used ultra‐high‐field (UHF) platform.
Son Chu   +8 more
wiley   +1 more source

Radiofrequency Ablation Using an Open Irrigated Electrode Cooled With Half-Normal Saline.

open access: yesJACC Clinical Electrophysiology, 2017
D. Nguyen   +7 more
semanticscholar   +1 more source

Endoscopic small bowel therapies for type 2 diabetes

open access: yesNutrition in Clinical Practice, EarlyView.
Abstract Type 2 diabetes is a global epidemic despite current medical treatments. Many patients are not responsive to medications, and patients with obesity are hesitant about bariatric surgery. Studies investigating the metabolic effects of Roux‐en‐Y gastric bypass have increasingly demonstrated that the duodenum plays a key role in the ...
Roma Patel   +4 more
wiley   +1 more source

Pediatric Cardiac Function Staging and Management Recommendations

open access: yesPediatric Discovery, EarlyView.
ABSTRACT The global prevalence of heart failure in children continues to increase, accompanied by a growing disease burden. To advance early prevention and intervention by shifting the focus upstream in the disease process, the Cardiovascular Group of the Pediatrics Society of the Chinese Medical Association has introduced the concept of pediatric ...
Bo Pan   +21 more
wiley   +1 more source

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