Table 2.

Summary of patients who underwent preoperative embolization

Group	Case Number	Location	Feeder		Embolization		Material		NBCA	Flow reduction rate (%)
			ICA	ECA	ICA	ECA	NBCA	Coil	Volume (ml)
Intratumoral embolization	1	Convexity		MMA		MMA	○	○	0.48	34.8
	2	Tentorial		MMA, OA		MMA, OA	○	○	not available	66.9
	3	Cavernous sinus	ILT	AFR, MMA	ILT	AFR, MMA	○		0.39	15.0
	4	Sphenoid ridge	MHT	AMA, MMA		AMA, MMA	○	○	not available	13.9
	5	Clinoidal	ILT	MMA		MMA	○	○	0.23	61.7
	6	Sphenoid ridge		MMA		MMA	○	○	0.26	73.3
	7	Sphenoid ridge	MCA	AMA, MMA, ADTA		AMA, MMA, ADTA	○	○	0.61	26.9
	8	Sphenoid ridge		MMA		MMA	○	○	0.28	26.7
	9	Falx		MMA		MMA	○		0.97	58.5
	10	Convexity		MMA		MMA	○		0.33	62.9
	11	Convexity	MCA	MMA		MMA	○	○	0.52	51.6
	12	Parasagittal	MCA	MMA		MMA	○		0.49	53.7
	13	Sphenoid ridge		AFR, IMA, MMA		IMA, MMA	○	○	0.13	11.2
	14	Parasagittal		MMA		MMA	○		0.40	47.2
	15	Parasagittal	ACA	MMA		MMA	○	○	0.85	16.8
	16	Petrous		APA		APA	○		0.12	71.6
	17	Parasagittal		MMA		MMA	○	○	0.23	87.5
	18	Clinoidal	ILT	AFR	ILT	AFR	○	○	0.10	54.2
	19	Clinoidal	MHT	AFR		AFR	○		0.13	23.3
	20	Convexity		MMA		MMA	○		0.17	70.4
	21	Sphenoid ridge	ILT	AMA, MMA		AMA, MMA	○	○	0.28	48.0
	22	Clinoidal	ACA, MHT	AFR, AMA		AFR, MMA	○	○	0.54	35.5
	23	Convexity		MMA		MMA	○		0.21	57.0
	24	Sphenoid ridge	OpA	AFR, AMA, MMA, STA		AFR, AMA, MMA, STA	○		0.69	54.9
	25	Parasagittal		MMA		MMA	○		0.12	76.0
	26	Clinoidal		AMA		AMA	○		0.17	63.5
	27	Convexity		MMA		MMA	○		0.51	75.9
	28	Petrous	MHT	APA		APA	○		0.18	32.2
	29	Convexity		MMA		MMA	○	○	0.08	61.3
	30	Convexity		MMA		MMA	○	○	0.64	87.2
	Avg									50.6
Feeder occlusion	1	Tentorial	MHT		MHT			○	0	55.7
	2	Petrous		APA		APA		○	0	0.5
	3	Falx		MMA, PMA		MMA, PMA	○		0.26	25.0
	4	Sphenoid ridge		AEA, AMA		AEA, AMA	○		0.29	12.4
	5	Parasagittal		MMA		MMA	○	○	0.20	41.6
	6	Sphenoid ridge	MCA	AMA, MMA		AMA, MMA	○		0.45	0.4
	7	Parasagittal		MMA, OA		MMA	○		0.12	1.8
	8	Planum sphenoidal		AEA, MMA		AEA, MMA	○		0.10	29.8
	9	Petrous	MHT	MMA		MMA	○	○	not available	2.4
	10	Convexity		MMA		MMA	○		0.13	41.1
	11	Petrous		MMA		MMA	○		0.03	11.5
	12	Petrous		APA, AFR, MMA		APA, AFR, MMA	○	○	0.34	38.4
	13	Tentorial		OA		OA	○		0.13	53.0
	Avg									24.1

ACA Anterior cerebral artery, ADTA Anterior deep temporal artery, AEA Anterior ethmoidal artery, AFR Artery of foramen rotundum, AMA Accessory meningeal artery, APA Ascending pharyngeal artery, Avg. Average, ECA External carotid artery, ICA Internal carotid artery, ILT Inferolateral trunk, IMA Internal maxillary artery, MCA Middle cerebral artery, MHT Meningohypophyseal trunk, MMA Middle meningeal artery, NBCA N-butyl-2-cyanoacrylate, OA Occipital artery, OpA Ophthalmic artery, PMA Posterior meningeal artery, STA Superficial temporal artery