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. Author manuscript; available in PMC: 2011 Sep 1.
Published in final edited form as: Acad Radiol. 2010 Jun 12;17(9):1083–1089. doi: 10.1016/j.acra.2010.04.025

Table 3.

Comparison of Primary/Secondary/Tertiary Levels with Chart Review and Discharge Summary, as reference standard.

Primary Level (DSA)
Multistage Reference Standard Vasospasm No Vasospasm Total
Vasospasm 67 3 70
No Vasospasm 9 58 67
Total 76 61 137