Italian registry of cardiac magnetic resonance.

Objectives: Forty sites were involved in this multicenter and multivendor registry, which sought to evaluate indications, spectrum of protocols, impact on clinical decision making and safety profile of cardiac magnetic resonance (CMR).

Materials And Methods: Data were prospectively collected on a 6-month period and included 3376 patients (47.2 ± 19 years; range 1-92 years).

Accuracy and feasibility of simplified Doppler-based left ventricular ejection fraction.

Calculation of left ventricular (LV) ejection fraction (EF) by Doppler stroke volume and end-diastolic volume (EDV) derived from LV diastolic diameter (LVIDD) could be reliable and feasible in clinical practice. In subjects with a wide range of LV volumes and EFs, magnetic resonance imaging (MRI) was used to evaluate the accuracy of common formulas (Teichholz and Z method) to estimate EDV from LVIDD (EDVTeich; EDVZ) versus volumetric EDV. The accuracy of simplified Doppler-EF was tested in a separate study sample versus real-time 3-dimensional (RT3D) echocardiography and versus bidimensional Simpson's method.