Table 3. The values of iodine number N_I for the brain tissues of studied samples.

Types of tumor	Patient number	Iodine number NI
Medulloblastoma	1	4
	2	19
	3	76
	4	76
	9	56
Ependymoma	5	30
	6	101
	11	29
Astrocytoma	7	54
	8	60
	10	195
	14	98
Ganglioma	13	65
Haemangioblastoma	15	66
Metastatic brain tumor	16	76
Normal tissue	17	60