Table 1:

The termination points of the ASVa

ASV Termination TypeASV TerminationTotal (531 ASVs)
Type AVenous angle38372.13%
Type BICV: anterior third7614.31%
ICV: middle third529.79%
ICV: posterior third10.19%
ICV elongation (absent TSV)203.77%
Cavernous sinus10.19%
  • Note:—MAV indicates medial atrial vein.

  • a Types A and B refer to the classification of ASV–ICV junction proposed by Türe et al (1997),3 and they differentiate between the ASV located at the venous angle (anteriorly) or beyond it (posteriorly).11