Skip to main content

Table 2 CT and TCS findings

From: Transcranial sonographic assessment of the third ventricle in neuro-ICU patients to detect hydrocephalus: a diagnostic reliability pilot study

  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
  1. Continuous data are expressed in median [25th–75th percentiles]
  2. §V3 CT diameters were “modified” diameters to take into account the usual angulations of the ultrasound probe
  3. The sum differs from 8 because one patient received several therapeutics
  4. CT computed-tomography; NA not applicable; TCS transcranial sonography; V3 third cerebral ventricle