From: The role of intraoperative ultrasound in gross total resection of brain mass lesions and outcome
Parameters | IOUS group | Conventional group | p | ||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Gross total | Subtotal | Partial | Gross total | Subtotal | Partial | ||||||||
N | % | N | % | N | % | N | % | N | % | N | % | ||
Tumors | 179/238 | 75 | 49 | 21 | 10 | 4 | 63/208 | 30 | 107 | 51 | 38 | 18 | <0.05 |
Gliomas | 111/154 | 72 | 35 | 23 | 8 | 6 | 33/147 | 22 | 90 | 61 | 24 | 16 | |
High grades | 89/122 | 73 | 27 | 22 | 6 | 7 | 21/107 | 20 | 74 | 70 | 12 | 11 | |
Low grades | 22/32 | 69 | 8 | 25 | 2 | 6 | 12/40 | 30 | 16 | 40 | 12 | 30 | |
Metastatic | 36/42 | 86 | 4 | 10 | 2 | 5 | 6/15 | 40 | 4 | 27 | 5 | 33 | |
Medulloblastoma | 18/22 | 82 | 4 | 18 | 15/28 | 54 | 7 | 25 | 6 | 21 | |||
Others | 14/20 | 70 | 6 | 30 | 9/18 | 50 | 6 | 33 | 3 | 17 | |||
Hematoma | 45 | 80 | 11 | 20 | 30 | 46 | 30 | 46 | 5 | 8 | 0.001 | ||
Abscess | 29 | 76 | 9 | 24 | 10 | 37 | 7 | 26 | 10 | 37 | 0.001 | ||
Location to tentorium | |||||||||||||
Supratentorial | 196/245 | 80 | 40 | 16 | 9 | 4 | 73/222 | 33 | 119 | 54 | 30 | 14 | 0.001 |
Infratentorial | 63/87 | 72 | 23 | 26 | 1 | 1 | 30/78 | 38 | 25 | 32 | 23 | 29 | |
Location to cortex | |||||||||||||
Cortical and subcortical | 70/96 | 73 | 23 | 24 | 3 | 3 | 43/100 | 43 | 44 | 44 | 13 | 13 | 0.001 |
Subcortical | 189/236 | 80 | 40 | 17 | 7 | 3 | 60/200 | 30 | 100 | 50 | 40 | 20 | |
Maximal diameter | |||||||||||||
≤ 5 cm | 180/205 | 88 | 21 | 10 | 4 | 2 | 80/187 | 43 | 92 | 49 | 15 | 8 | 0.001 |
> 5 cm | 79/127 | 62 | 42 | 33 | 6 | 5 | 23/113 | 20 | 52 | 46 | 38 | 34 | |
Age | |||||||||||||
≤ 18 years | 63/84 | 75 | 16 | 19 | 5 | 6 | 36/76 | 47 | 27 | 36 | 13 | 17 | 0.001 |
> 18 years | 196/248 | 79 | 47 | 19 | 5 | 2 | 67/224 | 30 | 117 | 52 | 40 | 18 | |
Sex | |||||||||||||
Male | 170/215 | 79 | 42 | 20 | 3 | 1 | 73/198 | 37 | 80 | 40 | 45 | 23 | 0.001 |
Female | 89/117 | 76 | 21 | 18 | 7 | 6 | 30/102 | 29 | 64 | 63 | 8 | 8 |