RT Journal Article
T1 MRI for Guided Right and Left Heart Cardiac Catheterization: A Prospective Study in Congenital Heart Disease.
A1 Velasco Forte, Mari Nieves
A1 Roujol, Sébastien
A1 Ruijsink, Bram
A1 Valverde, Israel
A1 Duong, Phuoc
A1 Byrne, Nick
A1 Krueger, Sascha
A1 Weiss, Steffen
A1 Arar, Yousef
A1 Reddy, Surendranath R Veeram
A1 Schaeffter, Tobias
A1 Hussain, Tarique
A1 Razavi, Reza
A1 Pushparajah, Kuberan
K1 cardiac catheterization
K1 congenital heart disease
K1 interventional MR
K1 passive tracking
AB Improvements in outcomes for patients with congenital heart disease (CHD) have increased the need for diagnostic and interventional procedures. Cumulative radiation risk is a growing concern. MRI-guided interventions are a promising ionizing radiation-free, alternative approach. To assess the feasibility of MRI-guided catheterization in young patients with CHD using advanced visualization passive tracking techniques. Prospective. A total of 30 patients with CHD referred for MRI-guided catheterization and pulmonary vascular resistance analysis (median age/weight: 4 years / 15 kg). 1.5T; partially saturated (pSAT) real-time single-shot balanced steady-state free-precession (bSSFP) sequence. Images were visualized by a single viewer on the scanner console (interactive mode) or using a commercially available advanced visualization platform (iSuite, Philips). Image quality for anatomy and catheter visualization was evaluated by three cardiologists with >5 years' experience in MRI-catheterization using a 1-5 scale (1, poor, 5, excellent). Catheter balloon signal-to-noise ratio (SNR), blood and myocardium SNR, catheter balloon/blood contrast-to-noise ratio (CNR), balloon/myocardium CNR, and blood/myocardium CNR were measured. Procedure findings, feasibility, and adverse events were recorded. A fraction of time in which the catheter was visible was compared between iSuite and the interactive mode. T-test for numerical variables. Wilcoxon signed rank test for categorical variables. Nine patients had right heart catheterization, 11 had both left and right heart catheterization, and 10 had single ventricle circulation. Nine patients underwent solely MRI-guided catheterization. The mean score for anatomical visualization and contrast between balloon tip and soft tissue was 3.9 ± 0.9 and 4.5 ± 0.7, respectively. iSuite provided a significant improvement in the time during which the balloon was visible in relation to interactive imaging mode (66 ± 17% vs. 46 ± 14%, P  MRI-guided catheterizations were carried out safely and is feasible in children and adults with CHD. The pSAT sequence offered robust and simultaneous high contrast visualization of the catheter and cardiac anatomy. 2 TECHNICAL EFFICACY STAGE: 1.
YR 2020
FD 2020-11-06
LK http://hdl.handle.net/10668/16561
UL http://hdl.handle.net/10668/16561
LA en
DS RISalud
RD Apr 10, 2025