迟发性外伤性颅内血肿(DTICH)为头部外伤后首次CT检查未发现颅内肿,经过一段时问后再次检查发现有颅内血肿或清除颅内血肿一段时间后又在颅内其他部位发现血肿者,DTICH发病率为1·37%~7·4%,病死率为25%~55%[1]。迟发性颅内血肿预后一般较差,及时发现可降低患者的病死率和伤残 Delayed traumatic intracranial hematoma (DTICH) for the first post-traumatic head CT examination found no intracranial swelling, after a period of time after the re-examination revealed intracranial hematoma or clear intracranial hematoma after a period of time and other intracranial The site of hematoma found, DTICH incidence of 1.37% ~ 7.4%, mortality was 25% to 55% [1]. Delayed intracranial hematoma prognosis is generally poor, timely detection can reduce the patient’s mortality and disability