Article Figures & Data
Figures
- FIG.
A 65-year-old man with traumatic brain injury sustained after a motor vehicle collision. A, Admission 120-kV image shows a hemorrhagic contusion in the left frontoparietal lobe and measured volume (A = 11.4 cm3). B, Follow-up axial 120-kV image shows hemorrhagic progression of contusions with increased volume of the existing hematoma (B = 38.3 cm3) with multiple new hemorrhagic contusions. The image also shows areas of contrast leakage (arrowheads). C, Virtual high-monochromatic image (190 kV) shows smaller hemorrhagic contusion volume (C = 27.9 cm3), compared with 120 -kV images due to a negligible attenuation contribution from leaked iodinated contrast. D, Iodine overlay image shows contrast staining of the penumbra and parapenumbra of hemorrhagic contusions (arrowheads). An ROI is drawn around the largest hematoma to measure the iodine concentration (0.8 mg/mL).
Tables
- Table 1:
Unadjusted associations among predictor variables, surgical management of intracranial pressure, and decompressive craniectomy
Variables Unadjusted Odds Ratios (95% CI) (Surgical Management) P Value Unadjusted Odds Ratios (95% CI) (Craniectomy) P Value Age (yr) 0.96 (0.93–0.98) .004a 0.94 (0.88–0.99) .04a Sex, men vs women 0.94 (0.27–3.2) .92b 0.35 (0.07–1.77) .34c P-GCS 0.63 (0.5, 0.8) <.001a 0.78 (0.6–1) .05 Motor score 0.43 (0.25–0.76) .003a 0.7 (0.44–1.14) .15 Systolic BP (mm Hg) 0.99 (0.97–1) .15 1.01 (0.98,1.04) .46 Diastolic BP (mm Hg) 0.99 (0.97–1.03) .84 1 (0.96–1.05) .72 PT (seconds) 0.98 (0.84–1.14) .78 0.93 (0.67–1.3) .64 aPTT (seconds) 1.03 (0.92–1.15) .57 1 (0.85–1.18) .93 Fibrinogen (mg/dL) 0.98 (0.97–0.99) .002a 0.99 (0.98–1) .06 Platelets (103/μL) 1 (0.99–1.01) .81 1 (0.99–1.01) .4 Marshall CT score DI II 1 3.46 (0.55–21.9) .2c DI III and 1V 4.27 (0.9–20) .06c Hemorrhagic progression 1.12 (0.35–3.54) .85b 2.84 (0.32–25.4) .31c Fraction of hemorrhagic progression 1.02 (0.96–1.11) .49 1 (0.91–1.1) .88 Iodine concentration (mg/mL) 44 (3.03–641) .005a 16 (0.58–442) .1 Hematoma volume on admission CT (cm3) 1.05 (0.97–1.13) .21 1.04 (0.95–1.14) .4 Hematoma volume on follow-up CT (cm3) 1.06 (1–1.12) .04a 1.04 (0.99–1.1) .1 Total pseudohematoma from all contusions (cm3) 1.32 (1.06–1.64) .01a 1.1 (0.99–1.23) .06 Fractional pseudohematoma to true hematoma 2.66 (0.6–11.8) .19 2.43 (0.3–18.9) .39 Iodine quantity in all pseudohematomas (mg) 1.48 (1.04–2.11) .03a 1.04 (0.96–1.13) .3 Iodine quantity in all contusions (mg) 1.1 (1.01–1.21) .02a 1.03 (0.98–1.08) .15 - Table 2:
Adjusted associations among predictor variables, surgical management of intracranial pressure, and decompressive craniectomy
Variables Adjusted Odds Ratios (95% CI) (Surgical Management) P Value Adjusted Odds Ratios (95% CI) (Craniectomy) P Value Age (yr) 0.9 (0.85–0.97) .003a 0.89 (0.81–0.99) .03a Total pseudohematoma from all contusions (cm3) 2.05 (1.11–3.77) .02a 1.23 (1.03–1.45) .02a P-GCS 0.55 (0.38–0.79) .001a ↵a Significant.
