Technical - Emerging CMR Methods - Tissue Characterization-3D Free-Breathing, Non-ECG, T1-T2-B1+ Mapping and Cine Imaging with Cardiac MR Multitasking

3D Free-Breathing, Non-ECG, T1-T2-B1+ Mapping and Cine Imaging with Cardiac MR Multitasking

Video Transcription

Video Summary

The presentation introduced a 3D free-breathing, non-ECG cardiac MRI method called MR Multitasking for whole-ventricle T1, T2, and B1+ mapping. By using a low-rank tensor reconstruction, it captures cardiac and respiratory motion while producing co-registered quantitative maps and black-blood images in under 10 minutes at 1.4 × 1.4 × 8 mm resolution. Phantom, healthy volunteer, and pig studies showed good agreement with reference methods, with reliable T2 and more accurate T1 than MOLLI. The technique may improve comprehensive cardiac tissue characterization and future clinical MRI workflows.

Keywords

MR Multitasking

cardiac MRI

T1 T2 B1+ mapping

low-rank tensor reconstruction

whole-ventricle tissue characterization