1220 / 1708
All strokes
Comparison between average radiation dose and dose
volume approachs
Average radiation dose
to the cerebral arteries
% of volume of
cerebral arteries
having received
OR (95%CI)
OR (95%CI)
0 (no Rt)
1 (reference)
1 (reference)
< 1 Gy
1.7 (0.8-3.6)
1.7 (0.8-3.5)
1 – 4.99 Gy
4.6 (1.8-11.7)
9.7 (2.5-38.2)
5 -19.99 Gy
6.5 (3.1-13.3)
4.2 (1.2-15.2)
20 -39.99 Gy
14.5 (6.7-31.4)
15.9 (4.7-47.4)
40 or + Gy
43.9 (7.3-263)
55.3 (11.5-264)