Related Experiment Video
Updated: Apr 1, 2026

In vitro Assessment of Aortic Regurgitation Using Four-Dimensional Flow Magnetic Resonance Imaging
Published on: February 25, 2022
Momentary and wide aortic regurgitation as an indicator of aortic dissection
Takafumi Inokuchi1, Osamu Sasaki2, Toshihiko Nishioka1
1Division of Cardiology, Saitama Medical Center, Saitama Medical University, 1981 Kamoda, Kawagoe, Saitama, 350-8550, Japan.
Abstract:
A 55-year-old female with a history of hypertension was admitted for dyspnea, epigastralgia and nausea. A chest X-ray showed pulmonary congestion. Transthoracic echocardiography (TTE) revealed severe left ventricular dysfunction with akinesis of the infero-posterior wall and Doppler color-flow mode showed mild aortic regurgitation (AR). Noninvasive positive pressure ventilation, intravenous heparin and diuretics were administered. Follow-up TTE revealed a dissection flap as well as momentary and wide AR only during isovolumetric relaxation. Contrast-enhanced computed tomography of the chest revealed Stanford type A aortic dissection. A momentary and wide AR in echocardiograms might serve as an important and useful indicator of aortic dissection in patients with acute myocardial infarction and congestive heart failure.
Related Concept Videos
Aortic Regurgitation II: Clinical Features and Diagnostic Tests
Aortic Regurgitation I: Introduction
Aortic Regurgitation III: Medical Management
Aortic Regurgitation IV: Nursing Management
Aneurysm II: Clinical Manifestations and Diagnostic Studies
Mitral Regurgitation II: Clinical Features and Diagnostic Tests

