Journal: Magnetic Resonance in Medicine
Article Title: 3D joint T 1 /T 1 ρ /T 2 mapping and water‐fat imaging for contrast‐agent free myocardial tissue characterization at 1.5T
doi: 10.1002/mrm.30397
Figure Lengend Snippet: 3D joint T 1 / T 1 ρ / T 2 mapping and water/fat imaging sequence schematic diagram. Volume 1: IR (TI = 250 ms ), Volume 2: no‐preparation, Volume 3: T 1 ρ ‐preparation (spin‐lock duration = 40 ms and spin‐lock amplitude = 400 Hz ), Volume 4: T 2 ‐preparation (duration = 40 ms ), Volume 5: no preparation. Non‐rigid motion correction with patch‐based regularization is used to reconstruct 3D IP/OP HB images; water and fat images are generated from IP/OP images through a fat‐water separation algorithm, and T 1 / T 1 ρ / T 2 maps are estimated from water images by dictionary matching via a Bloch simulation of the proposed 3D sequence.
Article Snippet: A 1D Bloch equation simulation of the longitudinal magnetization, assuming perfect spoiling, was implemented in MATLAB (The MathWorks Inc., Natick, MA, USA) to generate a signal at each TR.
Techniques: Imaging, Sequencing, Generated