Color Doppler flow analysis in carotid-cavernous sinus fistula

Authors evaluated orbital haemodynamic by Color Doppler Flow information (CDFI), in 4 cases of Carotid - Cavernous fistulas (CCF) four times within 12 months. Significant changes were demonstrated only in Superior Orbital Vein (SOV) 1. Changing of course blood flowing - bidirect (as an alternating orthograde and retrograde) blood flow, or constant retrograde blood flow in SOV, independent on Valsalv maneuver. 2. Pulsating SOV, in spectral analysis as retrograde blood flow in synchronised with cardial rhythm on electrocardiography record. 3. Dilatation of color echo of the VOS is a nonconstant sign of CCF. In one patient there was a spontaneous enclosure of indirect CCF (type B) and at the same time the change of blood flow bidirect direction in SOV to physiological orthograde blood flow.