Table 4:

Averages of total fluoroscopic time, number of DSA frames, DAP, and maximum ESD for each target lesion

VariableTarget Lesions
AN (n = 86)AVF (n = 7)CCF (n = 6)AVM (n = 4)
Total fluoroscopic time, min59.8 ± 33.7120.3 ± 67.3125.9 ± 27.340.0 ± 8.7
Total no. of DSA frames812 ± 221405 ± 7581125 ± 2511141 ± 320
DAP, Gy × cm2233 ± 132380 ± 166428 ± 233307 ± 36
Maximum ESD, Gy1.8 ± 1.12.0 ± 1.02.6 ± 0.91.6 ± 0.5
  • Note:—Data are given as average ± SD. AN indicates cerebral aneurysm; AVF, dural arteriovenous fistula; CCF, internal carotid artery cavernous sinus fistula; AVM, arteriovenous malformation; DSA, digital subtraction angiography; DAP, dose area product; ESD, entrance skin dose.