interventricular septum


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Related to interventricular septum: left ventricle, ductus arteriosus

interventricular septum

[¦in·tər·ven′trik·yə·lər ′sep·təm]
(anatomy)
The muscular wall between the heart ventricles. Also known as ventricular septum.
References in periodicals archive ?
The left ventricular stimulation after temporary or permanent pacemaker implantation is associated with connections formed by the coronary sinus and its branches, intracardiac defects (sinus venosus type defect, patent foramen ovale, atrial septal defect), perforation of interventricular septum and malposition due to inadvertent subclavian artery puncture.
Apical four chamber and apical short axis views showed an accessory mitral papillary muscle with its chordae located parallel to the interventricular septum extending to the anterior mitral leaflet.
His physiologic and hemodynamic findings were most consistent with the midcavity obstructive variant because of observed apposition of the interventricular septum with the free wall and papillary muscles during systole.
At other cardiac sites, the pathologic findings were represented by occasional foci of contraction band necrosis and few fibrotic micro foci in the internal portion of the posterior left ventricle and interventricular septum.
Ruptured interventricular septum after blunt chest trauma: ultrasonographic diagnosis.
30% to 35% demonstrate mid myocardial linear enhancement on DE-MRI in a noncoronary distribution, predominantly in the basal and mid interventricular septum, due to fibrosis (Figure 6).
1,2) The left ventricle is affected most often (50% to 70%), followed by right ventricle, pericardium (15% to 25%), and interventricular septum (5% to 15%).
Rupture of interventricular septum in acute myocardial infarction.
This increased ventricular interdependence is manifest as septal bounce on cine SSFP sequences where the interventricular septum variably bows from right to left during the cardiac cycle as pressures in one ventricle transiently exceed the other (Figure 5).

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