Use of Echoencephalography

Sonographic monitoring of midline shift in hemispheric infarctions

“…[8][9][10] However, because that technique lacked imaging properties it became redundant as soon as two-dimensional CT was introduced.…”

Origin of Echoes in the Echoencephalogram

“…Vlieger and Ridder (1959) found that the midline echo originates in the longitudinal fissure, not in the faix cerebri. They also recorded echoes which they believed derived from the ventricles.…”

Detection of ventricular landmarks by two dimensional ultrasonography.

“…While investigating the structures in the mid-sagittal plane of the head responsible for the midline echo by A-mode or unidimensional techniques (see Fig. 1), Gordon (1959), and de Vlieger and Ridder (1959) reported a double echo corresponding to the fissure of the third ventricle and a single echo at a higher level corresponding to the septum pellucidum. This was confirmed by Jeppsson (1960) in infants, and by ter Braak, Crezee, Grandia, and de Vlieger (1961), using simultaneous US and pneumoencephalography (PEG).…”