Table 2.

. White matter perfusion values and asymmetry indices (AIs) ipsi- (I) and contralateral (C) to the leptomeningeal angioma

Patient No.	rCBF-AI	rCBF-I (ml/100g/min)	rCBF-C (ml/100g/min)	rCBV-AI	rCBFV-I (ml/100g)	rCBV-C (ml/100g)	rMTT-AI	rMTT-I (s)	rMTT-C (s)
1	−0.82	16.65	39.67	−0.67	2.33	4.65	−0.44	4.58	7.17
2	−0.28	44.49	58.84	−0.13	4.77	5.41	−0.02	5.65	5.75
3	−0.67	29.04	58.42	−0.52	3.33	5.68	−0.53	3.46	5.95
4	−0.39	22.16	32.87	−0.33	3.49	4.88	−0.19	7.48	9.02
5	−0.16	35.08	41.26	0.02	3.96	3.87	0.27	7.46	5.67
6	−0.46	30.77	49.03	−0.24	2.31	2.93	−0.99	1.22	3.63
7	−0.19	64.57	77.80	−0.07	5.82	6.27	0.11	5.57	4.99
8	−0.12	50.24	56.56	−0.08	4.88	5.31	0.04	5.91	5.71
9	−0.22	20.17	25.14	0.05	1.08	1.03	0.19	3.19	2.64
10	0.39	63.05	42.52	0.69	6.11	2.97	0.29	5.83	4.36
11	0.32	20.40	14.70	0.31	6.00	4.38	0	17.64	17.57
12	0.26	19.66	15.11	0.24	5.73	4.52	−0.02	17.85	18.14
13	0.3	84.04	62.13	0.41	6.92	4.56	0.12	5.18	4.60
14	0.29	55.03	41.02	0.37	5.21	3.58	0.06	6.00	5.64
15	−0.04	69.14	71.75	−0.1	4.70	5.22	−0.08	4.09	4.43

rCBF: relative cerebral blood flow, rCBV: relative cerebral blood volume, rMTT: relative mean transit time, AI: asymmetry index;