Table 1.

Mean intracranial arterial flow velocities in β-thalassemia intermedia patients with or without splenectomy.

	Without splenectomy	With splenectomy	P value
Left ICA	84.6 ± 24.4	94.1 ± 20.7	0.097
Right ICA	83.1 ± 25.6	86.5 ± 25.1	0.538
Left MCA	66.6 ± 26.9	87.9 ± 23.9	0.001
Right MCA	71.3 ± 28.2	85.8 ± 22.7	0.026
Left ACA	58.2 ± 19.7	73.4 ± 18.3	0.002
Right ACA	57.3 ± 19.0	69.2 ± 18.2	0.013
Left PCA	35.1 ± 11.7	42.1 ± 11.6	0.021
Right PCA	34.8 ± 10.8	41.7 ± 14.3	0.037
Left vertebral artery	52.2 ± 15.0	58.3 ± 14.5	0.102
Right vertebral artery	55.6 ± 15.3	62.4 ± 17.5	0.106
Basilar artery	66.1 ± 17.2	76.7 ± 16.6	0.016

ICA, internal carotid artery; MCA, middle cerebral artery; ACA, anterior cerebral artery; PCA, posterior cerebral artery.