Table 1_Prognostic value of oedema findings on head CT in traumatic brain injury following road traffic accidents.docx

This study aimed to develop an assessment method for cerebral oedema and compare it with conventional CT scoring systems in predicting long-term outcomes in patients with TBI following road traffic accidents (RTAs).</p>Methods<p>A retrospective analysis was conducted on 227 patients with TBI following RTAs admitted to a single center (2019.1-2023.12).

A clinical prognostic model (IMPACT) was defined, comprising age, motor score, and pupillary light reflex. The A5 (+1) CT classification was defined based on the involvement of cerebral lobes by oedema and the resulting mass effect. The Marshall CT classification, Rotterdam CT score, Helsinki CT score, and A5 (+1) CT classification were added to the IMPACT model to assess their value in predicting outcomes using area under the curve (AUC).</p>Results<p>The AUC for A5 (+1) CT classification reached 0.849, surpassing Marshall CT classification (0.720, p < 0.001), Rotterdam CT score (0.745, p = 0.004), and Helsinki CT score (0.746, p = 0.002).