Time‐Synchronization of Interventional Cardiovascular Magnetic Resonance Data Using a Biomechanical Model for Pressure‐Volume Loop Analysis

Abstract

SM , but the content is solely the responsibility of the authors and does not necessarily represent the official views of Children's Health SM . Ethics approval and consent to participateThe data collections for single-ventricle patients were performed under the ethical approvals of the Institutional Review Boards of UT Southwestern Medical Center Dallas (STU 032017-061). The data collections for rTOF patients were performed under the ethical approvals of the Institutional Review Boards of UT Southwestern Medical Center Dallas (STU-2020-0023) and UT Austin (IRB 2020-06-0128). The IRBs waived the need for a consent to use the anonymized retrospective data.

Patient-specific closed-loop model of the fontan circulation: Calibration and validation

“…(17) , (18) ). Additionally, ensuring proper alignment of flow and pressure signals in time during model calibration is crucial due to the asynchronous nature of iCMR data acquisition [ 36 ]. This limitation of the iCMR procedure can introduce inconsistencies in the data (e.g.…”

Data-driven computational models of ventricular-arterial hemodynamics in pediatric pulmonary arterial hypertension

“…However, in most cases, the shape of the resulting PV loop lacked defined isovolumetric contraction and relaxation phases ( Figure 3A ), which can even occur when PV loop data is acquired simultaneously with an interventional cardiac MRI. Gusseva et al (2021 ; 2022) developed a biophysical heart model to align PV data. In this work, we developed an algorithm to systematically shift the pressure waveforms to determine optimally aligned PV loops.…”