Table 2 CT and TCS findings
CT | TCS | |
|---|---|---|
Bone thickness, mm | 3 [2.2–4] | NA |
Radiodensity, Hounsfield unit | 1204 [975–1377] | NA |
Time between TCS and CT, min | NA | 38 (25–52) |
V3 assessable on both sides, n (%) | 100 (%) | 70 (70%) |
V3 assessable on one side, n (%) | 100 (%) | 87 (87%) |
Right side§ | ||
V3 assessable, n (%) | 100 (100%) | 79 (79%) |
V3 diameter, mm | 6.4 [4.4–9.2] | 5.8 [4.6–8.4] |
Angle correction | 14 [11–18] | NA |
V3 depth (bone to V3), mm | 65 [62–69] | 72 [68–76] |
Left side§ | ||
V3 assessable, n (%) | 100 (100%) | 78 (78%) |
V3 diameter, mm | 6.3 [4.6–9.6] | 5.8 [4.4–8.6] |
Angle correction | 13 [10–16] | NA |
V3 depth, mm | 65 [62–68] | 71 [68–75] |
Other CT findings | ||
V3 coronal diameter, mm | 6.0 [4.4–9.0] | NA |
V3 haematoma, n (%) | 23 (23%) | NA |
Hydrocephalus, n (%) | 35 (35%) | NA |
Hydrocephalus management, n/N (%) | 8/35 (23%) | NA |
External ventricle drain reopening, n | 3 | NA |
External ventricle drain level adaptation, n | 4 | NA |
External ventricle drain placement, n | 1 | NA |
Medication, n | 1 | NA |