In its classic definition, by FranÃ§ois-Louis Ganshof (1944), feudalism describes a set of reciprocal legal and military obligations among the warrior nobility revolving around the three key concepts of lords, vassals and fiefs.
The exact cause of intracardiac echogenic foci remains unclear; however, they appear to be caused by small deposits of calcium in the papillary muscle of the fetal heart.
Intracardiac Echocardiography. Intracardiac echocardiography (ICE) is an imaging technique that allows physicians to get a clear picture of the inner workings of the heart.CE may be used as a diagnostic tool, or for guiding the physician during minimally invasive procedures inside the heart such as stent placement, or for the repair of a hole in the heart such as atrial septal defect. The use of intracardiac echo at UNC makes heart-imaging procedures much easier on the patient.