WebThe bSSFP profile asymmetry decreases considerably when approaching tissue-like T 1 and T 2 as illustrated for TR = 2.5 ms and α = 14° (cf. Figs. 3a+b) with generally higher AI values at 3 T ... WebApr 21, 2008 · The off-resonance frequency-dependent bSSFP slice profile broadening has been demonstrated in phantom experiments and corresponding numerical simulations …
Concomitant gradient field effects in balanced steady‐state free ...
WebDec 29, 2024 · Results: Simulation and in vivo experiments show that in the reconstruction process of wave encoded bSSFP sequence, compared with the general bSSFP sequence, the g-factor decreased. Based on SPIRiT reconstruction method can reconstruct a stable and good image under 4-fold acceleration by using simpler empirical selection parameters. WebSimulations and scans in 13 healthy subjects were performed at 0.55 T and 1.5 T using a golden angle spiral bSSFP sequence with images reconstructed using [Formula: see text]-ESPIRiT, low-rank plus sparse (L + S) matrix completion, and LR-DIP. Cartesian breath-held ECG-gated cine images were acquired for reference at 1.5 T. rhyme time nursery rhymes
Motion-insensitive rapid configuration relaxometry
Web%% bSSFP signal evolutions using Bloch simulations and GIRFs % SUMMARY: The gradient impulse response function (GIRF) can be used to % predict additional phase … WebSimple steady-state free precession simulation. The goal is to provide a simple to use, pip-installable solution for simulating and working with this wonderful pulse sequence. In … WebMethods: Accuracy and precision of transceive phase (ϕ ±) estimation with PLANET, an ellipse fitting approach to phase-cycled balanced steady state free precession (bSSFP) data, were assessed with simulations and measurements and compared to standard bSSFP. Measurements were conducted on a homogeneous phantom and in the brain of … rhyme time rhythm vhs closing