Table 2:

Per-patient TCD MFV thresholds for various minimal sensitivities in detecting 50% vasospasm

Minimum Sensitivity	Predefined MFV Threshold (cm/s)a
	ICA or M1	Basilar Artery	Sensitivity (95% CI)	Specificity (95% CI)
80%	>164	>80	0.86 (0.72–0.94)	0.64 (0.56–0.71)
85%	>160	>61	0.90 (0.77–0.96)	0.48 (0.40–0.56)
90%	>126	>60	0.94 (0.82–0.98)	0.37 (0.30–0.45)
95%	>95	>56	0.96 (0.85–0.99)	0.24 (0.18–0.31)

^aSevere vasospasm was determined when 1 threshold was exceeded.