It takes time to publish during clinical routine, but finally the groundbreaking work of the team by drs Reddy, Hussain and Greil at Dallas Children’s/UTSW is now published in JCMR. The study describes interventional CMR procedures successfully performed to completion in 31/34 (91%) subjects between August 1st 2017 to December 13th, 2018. Median age and weight of mostly (n=21) single ventricle patients was 7.7 years and 25.2 kg (range: 3 months – 33 years and 8 –80 kg). Most exciting is the first description of Fontan fenestration test occlusion iCMR procedures in pediatric subjects with complex CHD with the aid of our EmeryGlide MR conditional guidewire.