Publications by authors named "Z Bentatou"
Article Synopsis
- Heart failure (HF) and arrhythmia-related complications significantly impact patients with nonischemic dilated cardiomyopathy (NIDCM), and this study investigates the prognostic value of cardiovascular magnetic resonance (CMR) imaging metrics like T1 and extracellular volume (ECV) for predicting these events.
- Analyzing 225 NIDCM patients over two years, the study found 26% experienced major adverse cardiovascular events (MACE), with a notable association between increased ECV and HF-related events, while higher T1 Z-scores and ECV values correlated with arrhythmia-related events.
- The study concluded that specific cutoffs for ECV and T1 Z-scores can be important independent predictors of both
Purpose: To develop and evaluate a complete deep learning pipeline that allows fully automated end-diastolic left ventricle (LV) cardiac MRI segmentation, including trabeculations and automatic quality control of the predicted segmentation.
Materials And Methods: This multicenter retrospective study includes training, validation, and testing datasets of 272, 27, and 150 cardiac MR images, respectively, collected between 2012 and 2018. The reference standard was the manual segmentation of four LV anatomic structures performed on end-diastolic short-axis cine cardiac MRI: LV trabeculations, LV myocardium, LV papillary muscles, and the LV blood cavity.
Purpose: To compare the assessment of diffuse interstitial myocardial fibrosis in valvular diseases using cardiac magnetic resonance (CMR) extracellular volume fraction (ECV) quantification and serum biomarkers of collagen turnover using results of myocardial biopsy as standard of reference.
Materials And Methods: This prospective monocentric study included consecutive patients before aortic valvular replacement. All patients underwent: i), 1.
Background: This study evaluates the possibility for replacing conventional 3 slices, 3 breath-holds MOLLI cardiac T1 mapping with single breath-hold 3 simultaneous multi-slice (SMS3) T1 mapping using blipped-CAIPIRINHA SMS-bSSFP MOLLI sequence. As a major drawback, SMS-bSSFP presents unique artefacts arising from side-lobe slice excitations that are explained by imperfect RF modulation rendering and bSSFP low flip angle enhancement. Amplitude-only RF modulation (AM) is proposed to reduce these artefacts in SMS-MOLLI compared to conventional Wong multi-band RF modulation (WM).
View Article and Find Full Text PDFPurpose: The purpose of this prospective study was to assess the value of biventricular extracellular volume (ECV) in pre-capillary pulmonary hypertension (PH) obtained using cardiac magnetic resonance imaging (CMR) and to correlate ECV with markers of prognosis such as strain echocardiography and blood biomarkers of fibrosis.
Materials And Methods: Twelve patients with PH (6 men, 6 women; mean age=50±16 [SD] years; age range: 22-73 years) underwent the same day: (i), transthoracic echocardiography including measurement of right ventricular (RV) fractional shortening (RVfs), tricuspid annular plane systolic excursion (TAPSE), maximal tricuspid annular velocity, RV global and segmental deformation; (ii), right heart catheterization measuring pulmonary arterial pressures (inmmHg) and cardiac output (inL/min); (iii), CMR at 1.5-T measuring RV volumes and ejection fraction; (iv), native and 15min post-contrast T1 mapping using modified look-locker inversion-recovery sequence; and (v), serum quantification of two biomarkers of collagen turnover and hematocrit.