Table 1

Continuous and categorical variables compared between study cohorts

Acute kidney injuryNo acute kidney injury
Total number of patients480
% Male5052.5
Mean time CTSS to DSA (±SD)6 h 9 min (±7 min 24 s)12 h 55 min (±14 min 47 s)
Mean pre-study Cr1.351.03
Mean peak Cr3.000.94
Mean pre-study BUN2117.14
Mean peak BUN53.7515.7
Mean pre-study BUN:Cr15.1816.81
Mean peak BUN:Cr19.8516.93
Mean Δ Cr1.650.09
Interventional DSA (%, no.)50% (2 cases)55% (44 cases)
Visipaque 32050% (2 cases)46% (37 cases)
Omnipaque 30050% (2 cases)54% (43 cases)
  • BUN, blood urea nitrogen; Cr, creatinine; CTSS, CT stroke study; DSA, digital subtraction angiography.