Cardiac magnetic resonance indices reflecting pulmonary regurgitation burden after tetralogy of Fallot repair
2017; Elsevier BV; Volume: 72; Issue: 10 Linguagem: Inglês
10.1016/j.crad.2017.05.013
ISSN1365-229X
AutoresAmal Abdelsattar Sakrana, Shadha A. Ahmed Alzubaidi, M.M. Nasr, Eman Mohamed Helmy, Saleh Saad Al Ghamdi, Mohammad El Tahlawi,
Tópico(s)Aortic Disease and Treatment Approaches
ResumoTo investigate cardiac magnetic resonance (CMR)-derived parameters to determine a convenient index reflecting the degree of pulmonary regurgitation (PR) after Tetralogy of Fallot (TOF) repair.Sixty-three patients (age at CMR study, 23.6 [10.2-34.7] years, 55.6% male) underwent CMR after TOF repair. PR was quantified using ventricular stroke volume difference and phase-contrast mapping of the main pulmonary artery flow. In both approaches, the PRV index (PRVI) and the PR fraction (PRF) were calculated and correlated to the right ventricle end-diastolic volume index (RVEDVI) and the right ventricle end-systolic volume index (RVESVI).No statistically significant difference was observed between the PR volumes and the PRF measured by the stroke volume difference or the phase-contrast method. The PRVI was better correlated to RVEDVI and RVESVI than the PRF.The PRVI exhibits more correlation to the RVEDVI than PRF. Thus, it could be a preferable parameter to reflect the PR burden.
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