TABLE 3:

Interobserver agreement with MR angiography for the detection of collateral pathways (n = 150)*

Findings, Observer 1^†	Findings, Observer 2^†		Total
Findings, Observer 1^†	Yes	No	Total
Yes	101	9	110
No	15	25	40
Total	116	34	150

* κ = 0.57 (95% confidence interval: 0.42, 0.72).
† Yes indicates functional. No indicates nonfunctional.