2006-06-07-15 Eustachian valve © Manson www.thefetus.net/
Francois Manson, MD The Eustachian Valve (EV) also called
«valvulae venae cavae inferioris» has been described for the
first time by the Italian anatomist: Bartolomeo Eustachi (born
between 1500 and 1513, died 1574 ). Picture 1: Bartolomeo
Eustachi Anatomy: The Eustachian valve is a crescent-shaped
endocardial fold that extents from the anterior margin of the
inferior vena cava ostium to the anterior part of the limbus
fossa ovalis. Picture 2: Schematic internal view of the right
atrium (after removal of the lateral wall of the right atrium)
showing the ostium of superior and inferior vena cava (SVCO and
IVCO ), the foramen ovale (FO), the coronary sinus (CS) and
Eustachian Valve (EV). Sonographic aspects: During an ultrasound
examination, the Eustachian valve can be recognized on a
sagittal section near the bicaval section. It appears as a
mobile echogenic line at the anterior part of the inferior vena
cava close to the junction with the right atrium.