Oral Abstract Session 04: Early Career Awards 3: Basic Science (2018)-Free-breathing cine DENSE using phase-cycling with matchmaking and stimulated-echo image-based navigators

Free-breathing cine DENSE using phase-cycling with matchmaking and stimulated-echo image-based navigators

Video Transcription

Video Summary

The talk presented a self-navigated free-breathing cine-DENSE MRI method for myocardial strain imaging. Free-breathing scan artifacts were traced to striping from residual T1 echoes, blurring from motion between segments, and signal loss from intra-heartbeat motion. The proposed “matchmaking” framework selects the best face-cycling data, reconstructs image navigators to estimate translation, and applies phase correction to reduce these artifacts. In healthy volunteers, it improved image quality, SNR, and strain agreement versus conventional methods. A prospective adaptive acquisition version was also introduced, with future validation planned in patients.

Keywords

cine-DENSE MRI

myocardial strain imaging

free-breathing acquisition

motion artifact correction

adaptive reconstruction