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Variable Group A (n = 52) Group B (n = 33) Mean (± SD) age (y) 59.3 ± 12.4 58.1 ± 14.0 Sex Female 35 22 Male 17 11 Location of aneurysm Internal carotid artery 24 14 Anterior cerebral artery 15 12 Middle cerebral artery 5 1 Vertebrobasilar system 8 6 Mean (± SD) aneurysm size (mm) 5.0 ± 3.0 5.0 ± 2.8 Mean (± SD) no. of coils 5.3 ± 4.5 4.8 ± 2.4 Note.—Differences between the groups for all variables were not significant (P > .05).
Variable Group A (n = 52) Group B (n = 33) P Value No. of exposures Total procedure 23.1 ± 7.5 15.3 ± 4.8 <.0001 Working projection 7.5 ± 4.8 1.9 ± 1.4 <.0001 During embolization 11.6 ± 5.2 7.8 ± 2.8 .0002 3D DSA – 2.0 ± 0.4 – Total contrast medium (mL)* 211.3 ± 55.5 215.2 ± 62.9 >.05 Note.—Data are mean ± SD.
* For this variable, n = 32 for group A and n = 23 for group B.
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