Egyptian Journal of Neurosurgery

Table 5 Brain tumors grading; high grade (HG) versus low grade (LG) according to CT, MRI T1, and IOUS investigation

From: Gross pathology of brain mass lesions by intraoperative ultrasonography: a comparative study

	CT				P	MRI				P	IOUS				P
	High grade n.202		Low grade n.61		CT	High grade n.202		Low grade n.61		MRI	High grade n.202		Low grade n.61		IOUS
	n	%	n	%	CT	n	%	n	%	MRI	n	%	n	%	IOUS
Well-defined edge	83	41.1	37	60.7	0.007*	147	72.8	51	83.6	0.086	182	90.1	58	95.1	0.31
Regular contour	55	27.2	29	47.5	0.003*	97	48.0	41	67.2	0.009*	111	55.0	43	70.5	0.03*
Necrosis	61	30.2	0	.0	0.001*	121	59.9	4	6.6	0.001*	141	69.8	5	8.2	0.001*
Hematoma	10	5.0	1	1.6	0.47	10	5.0	1	1.6	0.47	10	5.0	1	1.6	0.47
Calcification	17	8.4	21	34.4	0.001*	4	2.0	8	13.1	0.001*	16	7.9	21	34.4	0.001*
Edema	202	100.0	23	37.7	0.001	202	100	23	37.7	0.001	202	100	23	37.7	0.001*
Cysts	91	45.0	15	24.6	0.004*	111	55.0	18	29.5	0.001*	139	68.8	29	47.5	0.001*
Single	28	13.9	12	19.7	0.27	40	19.8	13	21.3	0.79	60	29.7	17	27.9	0.78
Multiple	63	31.2	3	4.9	0.001*	71	35.1	5	8.2	0.001*	79	39.1	12	19.7	0.005*
Trabeculation	10	5.0	0	0.0	0.12	20	9.9	0	0	0.005*	40	19.8	2	3.3	0.002*
Thin wall	26	12.9	14	23.0	0.005*	38	18.8	14	23.0	0.48	61	30.2	24	39.3	0.18
Thick wall	65	32.2	1	1.6	0.001*	73	36.1	4	6.6	0.00*	79	39.1	5	8.2	0.001*
Diameter cm
Median (range)	4.8 (1.5–10)		4 (1.5–7)		0.001*	5.1 (1.7–10.1)		4.5 (1.7–7.1)		0.001*	5.1 (1.9–10.8)		4.7 (1.9–7.8)		0.001*
Hypo	170	84.2	56	91.8	0.13	181	89.6	54	88.5	0.81	80	39.6	6	9.8	0.001*
Hyper	32	15.8	5	8.2	0.13	21	10.4	7	11.5	0.81	122	60.4	5	90.2	0.001*
Homogeneity
Homogenous	40	19.8	55	90.2	0.001*	10	5.0	51	83.6	0.001*	6	3.0	49	80.3	0.001*
Heterogeneous	162	80.2	6	9.8	0.001*	192	95.0	5	16.4	0.001*	196	97.0	12	19.7	0.001*

*P < 0.05 significant
IOUS (intraoperative ultrasound), CT (computed tomography), MRI (magnetic resonance imaging), HG (high grade), LG (low grade)

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