The 4D flow MRI of thorax was performed using an anisotropic 4D segmented k‐space phase contrast gradient echo sequence with retrospective electrocardiographic gating but without navigator gating of respiratory motion to minimize acquisition time. The sequence parameters were: FOV 180 × 216 × 75 mm, matrix size 100 × 128, 30 slices, acquired voxel 2.5 × 2.5 × 2.5 mm, reconstructed voxel 1.7 × 1.7 × 2.5 mm, TR 3.5 ms, TE 2.2 ms, FA 5 °, 25 reconstructed cardiac phases, velocity encoding 4.0 m/s, and number of signal averages 1. Scan time varied between 9 and 14 min, depending on the size of the patient's chest. The high velocity encoding in all three directions was used to avoid phase wraps in the presence of stenosis forming complex 3D flow.
Five element phased array cardiac coil
The Five-element phased array cardiac coil is a specialized piece of lab equipment designed for magnetic resonance imaging (MRI) applications. It is a multi-channel radiofrequency (RF) coil that utilizes a phased array configuration to provide enhanced signal-to-noise ratio and improved image quality for cardiac imaging procedures. The core function of this coil is to transmit and receive the RF signals necessary for acquiring high-quality MRI data from the heart and surrounding structures.
Lab products found in correlation
5 protocols using five element phased array cardiac coil
Comprehensive Aorta Anatomy and Flow MRI
The 4D flow MRI of thorax was performed using an anisotropic 4D segmented k‐space phase contrast gradient echo sequence with retrospective electrocardiographic gating but without navigator gating of respiratory motion to minimize acquisition time. The sequence parameters were: FOV 180 × 216 × 75 mm, matrix size 100 × 128, 30 slices, acquired voxel 2.5 × 2.5 × 2.5 mm, reconstructed voxel 1.7 × 1.7 × 2.5 mm, TR 3.5 ms, TE 2.2 ms, FA 5 °, 25 reconstructed cardiac phases, velocity encoding 4.0 m/s, and number of signal averages 1. Scan time varied between 9 and 14 min, depending on the size of the patient's chest. The high velocity encoding in all three directions was used to avoid phase wraps in the presence of stenosis forming complex 3D flow.
Cardiac MRI Velocity Encoding Protocol
Fetal Brain MRI Imaging Protocol
The MRI protocol included axial, and coronal T2-weighted single-shot fast spin-echo (SSFSE) sequences, and/or steady-state free precession (SSFP) sequences. All sequences were acquired as previously proposed [16] (link) and adjusted according to the changing structural composition of the fetal brain during gestation.
CMR Imaging with Vasodilator Stress Protocol
Vasodilator Stress Perfusion CMR Imaging
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