Table 4 Number of assessable vessel diameters, and results of linear regression analysis in function of the date of angiography.
From: Vessel diameters of 14 basal cerebral arteries assessed in 1000 digital subtraction angiographies
vessel | assessable (n) | mean diameter [mm] | standard deviation | regression coefficient (x 10−5) | r2 value |
|---|---|---|---|---|---|
left ACI | 1006 | 3.1418 | 0.517 | 4.468 | 0.022 |
right ACI | 1007 | 3.1592 | 0.568 | 6.060 | 0.033 |
left Media | 1008 | 2.4502 | 0.398 | 4.758 | 0.042 |
right Media | 1006 | 2.4639 | 0.408 | 4.308 | 0.032 |
left Anterior | 1007 | 1.9399 | 0.423 | 4.175 | 0.028 |
right Anterior | 989 | 1.8866 | 0.444 | 3.944 | 0.023 |
Anterior comm | 466 | 1.5293 | 0.479 | 4.762 | 0.029 |
left Vertebral | 933 | 2.6712 | 0.631 | 3.760 | 0.010 |
right Vertebral | 655 | 2.4587 | 0.597 | 6.324 | 0.030 |
Basilar | 1008 | 2.6257 | 0.567 | 2.712 | 0.007 |
left Posterior | 1006 | 1.8080 | 0.537 | 0.661 | 0.0004 |
right Posterior | 1001 | 1.7411 | 0.589 | −0.604 | 0.0003 |
left Post comm | 1002 | 1.1000 | 0.632 | −0.487 | 0.0002 |
right Post comm | 999 | 1.1605 | 0.661 | 0.159 | 0.00002 |
