Table 1.

Characteristics for all iCMR subjects

MRI-Conditional Guidewire Patients (n = 34)

Demographic data

Sex (%) - 74% male (n = 25)

Age - 7.7 years (range: 3 months - 33 years)

Weight (kg) - 25.2 (range: 8–80)

Single Ventricle (%) - 62%

Single Ventricle, n = 21

Post-Fontan = (9/21) = 43%

Pre-Fontan = (11/21) = 52%

Pre-Glenn = (1/21) = 5%

Biventricular,n = 13

Coarctation of the Aorta = (4/13) = 31%

Vasoreactivity testing = (3/13) = 23%

Tetralogy of Fallot = (3/13) = 23%

Pulmonary Artery Stenosis = (2/13) = 15%

s/p Heart Transplant = (1/13) = 8%

Procedure Time

Single Ventricle,n = 21

Total Zone 4 time = 129 min (59–174)

Right heart cath = 5.0 min

Left heart cath = 2.9 min

Biventricular, n = 13

Total Zone 4 time = 124 min (57–259)

Right heart cath = 5.4 min

Left heart cath = 3.1 min

Outcomes

Single Ventricle, n = 21

Successful, n = 19

Unsuccessful, n = 1 due to poor visualization

Unsuccessful, n = 1 due to coil artifact

Biventricular, n = 13

Successful, n = 12

Unsuccessful, n = 1 due to inability to cross CoA