Table 2:

CT values of hyperdense areas in the Sylvian vallecula^*

Groups	CT Values (HU)
	No.	Mean	SD	Range (Min-Max)
Pseudo-SAH(+)	18	37.6†	3.3	30.0–42.0
CPA-SAH	14	56.6	7.8	41.0–67.0
SAH	23	53.7	5.1	42.0–60.0

Note:—No. indicates number of hemispheres; Min, minimum; Max, maximum.

^*ANOVA, P < .0001.

^†P < .0001, as compared with the other 2 groups (Bonferroni post hoc test).