311 A new color Doppler-based echocardiographic technique for evaluation of intraventricular flow dynamics: first application to normal subjects, athletes, and patients
| Autor: | Andrea Fiorencis, Marco Pepe, Vittorio Smarrazzo, Marika Martini, Salvatore Severino, Marco Evangelista, Pierluigi Incarnato, Valeria Pergola, Marco Previtero, Marco Maglione, Gianni Pedrizzetti, Sabino Iliceto, Donato Mele |
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| Rok vydání: | 2021 |
| Předmět: | |
| Zdroj: | European Heart Journal Supplements. 23 |
| ISSN: | 1554-2815 1520-765X |
| DOI: | 10.1093/eurheartj/suab132.035 |
| Popis: | Aims A new echocardiographic, color Doppler-based technique, named HyperDoppler, has been recently introduced for non-invasive evaluation of intracardiac flow dynamics. The aim of this study was to verify the feasibility and reproducibility of this technique and its capability to differentiate geometrical and energy measures of vortex flow within the left ventricle (LV) in normal subjects, athletes and patients with heart failure. Methods and results Two Italian cardiology centres enrolled each one 100 unselected, consecutive patients presenting at the echocardiography laboratory for a clinical examination, regardless of the indication to echocardiography. In these patients, the feasibility, repeatability, reproducibility, and inter-centre reproducibility of the HyperDoppler technique were tested using the intraclass correlation coefficient (ICC) and Bland–Altman analysis. In addition, 50 normal subjects, 30 professional athletes, and 50 patients with stabilized chronic heart failure and LV ejection fraction Conclusions HyperDoppler is a new ultrasound technique which is feasible, reliable, and practical for assessment of LV flow dynamics. It can quantitate several measures of the LV vortex and may distinguish normal subjects and patients. Future studies are needed to clarify how to implement this technique in cardiology clinical practice. |
| Databáze: | OpenAIRE |
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