Fig. 5From: Radiological evaluation in patients with clinical suspicion of cerebral venous sinus thrombosis presenting with nontraumatic headache - a retrospective observational study with a validation cohortScatterplot with HU measured in the thrombus (y-axis) and days between symptom onset and neCT (x-axis). A non-linear relationship between symptom duration and thrombus density is noted. HU increases over the first daysBack to article page