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.
Introduction. Intracardiac echocardiography (ICE) is one of the latest developments in the ever expanding field of cardiac ultrasound and, within this review, we discuss some of the current applications of ICE and how to image from within the heart. Transvenous echocardiography has been described for over 20 years.ntracardiac echocardiography (ICE) is an imaging technique that is becoming increasingly available as an alternative to transoesophageal echocardiography to guide percutaneous interventional procedures.