[en] DSA of the cavernous sinus was performed in 31 patients, 33 times, via the orbital venography except for a case performed from the inferior petrous sinus. Because of good contrast resolution of DSA, sufficient quality of images were provided with diluted contrast material. Dilution of contrast material relieved patients from heat sensation or pain, and made it possible to use finer needle for a puncture. Continuous images of DSA was diagnostic for filling defects, that is to be able to observe a moment entrance of contrast material into the false filling defect. DSA of orbital venography should be the procedure of first choice for the cavernous sinography. (author)