Concordance AUTOFEVG (CONCORDANCEVEF)

Evaluation of the Ejection Fraction of the Left Ventricle Ejection Fraction (LVEF) by a New Automatic Evaluation Tool in a Pocket Ultrasound Device: Study of Concordance With the Estimated by Cardiac Magnetic Reasoning Imaging (MRI)

Clinical ultrasound has become essential in emergency medicine. The guidelines are to use of echocardiography in specific contexts: dyspnea, hypotension or chest pain. The evaluation of left ventricle ejection fraction (LVEF) is one of the basic objectives of echocardiography. The reference assessment in emergency medicine is visual assessment. It suffers from poor inter-observer reproducibility. Pocket ultrasound scanners seem to meet the constraints of point-of-care ultrasound. A new tool is available on a pocket ultrasound device: the automatic evaluation of LVEF. Its interest could be to have a better inter-observer reproducibility than visual evaluation.

• Echocardiography performed by the evaluator 1: 2 LVEF visual evaluations 2 LVEF automatic evaluations • Echocardiography performed by the evaluator 2: 2 LVEF visual evaluations 2 LVEF automatic evaluations

evaluate the interobserver reproducibility of the automatic measurement of LVEF with a pocket ultrasound device

Ability of the pocket ultrasound scanner to give an ultrasound image useable by the doctor performing the examination.

Ability of the pocket ultrasound scanner to give an ultrasound image useable by the doctor performing the examination considering image quality

Inclusion criteria: Patient over 18 years of age Management in the investigator centre Admitted for dyspnea or hypotension or chest pain Exclusion criteria: Age < 18 years Patient not benefiting from a social security system Patient deprived of liberty Patient under the protection of justice, under guardianship or curatorship Patient refusing to participate in the study Inability to provide the patient with informed information