Results 301 to 310 of about 3,147,050 (413)

In vivo 2H‐MR spectroscopy and imaging of hepatic metabolic formation of trimethylamine‐N‐oxide

open access: yesMagnetic Resonance in Medicine, EarlyView.
Abstract Purpose Despite growing evidence of the link between elevated levels of trimethylamine‐N‐oxide (TMAO) and multiple diseases, there is no method with which to spatially monitor its hepatic formation from the interstitially produced trimethylamine (TMA).
Hadar Dessau   +5 more
wiley   +1 more source

Impact of through‐slice gradient optimization for dynamic slice‐wise shimming in the cervico‐thoracic spinal cord

open access: yesMagnetic Resonance in Medicine, EarlyView.
Abstract Purpose This study investigates the effectiveness of through‐slice gradient optimization in dynamic slice‐wise B0 shimming of the cervico‐thoracic spinal cord to enhance signal recovery in gradient‐echo (GRE) EPI sequences commonly used in functional MRI studies. Methods Six volunteers underwent MRI acquisitions with dynamic shim updating (DSU)
Arnaud Breheret   +4 more
wiley   +1 more source

Feasibility study of subject‐specific, brain specific‐absorption‐ratio maps retrieved from MRI data

open access: yesMagnetic Resonance in Medicine, EarlyView.
Abstract Introduction Specific absorption rate (SAR) is crucial for monitoring radiofrequency power absorption during MRI. Although local SAR distribution is usually calculated through numerical simulations, they are impractical during exams, limiting real‐time patient‐specific SAR assessment.
Jessica A. Martinez   +8 more
wiley   +1 more source

Persistence of AV conduction over the slow pathway after AVRNT radiofrequency ablation and its relation to the recurrences [PDF]

open access: diamond, 1998
Márcio A. Silva   +4 more
openalex  

RF shimming strategy for an open 60‐channel RF transmit 7T MRI head coil for routine use on the single transmit mode

open access: yesMagnetic Resonance in Medicine, EarlyView.
Abstract Purpose To develop an radiofrequency (RF) shimming approach for operating the 2nd Generation Tic Tac Toe RF coil system (60 transmit channels integrated with 32‐channel receive insert) for routine use in 7T neuro MRI on the single transmit mode.
Andrea N. Sajewski   +8 more
wiley   +1 more source

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