Diagnostic Ultrasound in Cases of Experimental Vitreous Hemorrhage

Abstract

Acoustic findings in the case of vitreous hemorrhage in humans are as follows: The optically opaque vitreous body is acoustically heterogeneous. Only the surface of larger cell groups can reflect registrable echoes. The bigger the liquifaction of the gel is, the more amplitude of the echoes fluctuates. The peaks become higher parallelly with the increase in cell count and the irregularity of their distribution. The membrane surface reflects high and single spikes. However, in the most cases membraneous cloudiness appears together with corpuscular elements. (Freyler 1974, Ossoinig 1971) Many authors (Forrester 1978) have carried out macroscopic, biomicroscopic and ultrastructural examinations considering the experimental vitreous hemorrhage in rabbit. However, the origin of the vitreous bands following an injection of Formalin and Mohr’s salt was examined echographically only by Freyler et al. (1974).