Technical - Interventional CMR-How We Use Real-Time MRI

Video Transcription

Video Summary

Josh Greer describes the Dallas interventional CMR program for pediatric congenital heart disease, especially single-ventricle patients. He explains how MR-guided cath offers diagnostic pressures, saturations, and anatomy without radiation, but adoption is limited by device visualization. His lab improved catheter tracking with a T1 overlay real-time technique, boosting balloon visibility from 42% to 84%. He also presents selective injections, Fontan fenestration test occlusions, and early true interventions. Beyond clinical work, ICMR supports research on pressure-volume loops, patient-specific ventricular modeling, and validation of quantitative MRI oxygen mapping, helping advance both care and MR innovation.

Keywords

interventional CMR

pediatric congenital heart disease

MR-guided catheterization

single-ventricle patients

Fontan fenestration