目的: 探讨晚发性维生素K 缺乏致颅内出血的CT 诊断、疗效观察及预后判断。材料与方法: 对8 年间所诊断的84 例患儿临床资料及CT 资料进行回顾性分析。结果: CT 显示颅内出血率为90 .5 % ,蛛网膜下腔出血最多见,其次为硬膜下出血、脑内出血,脑室内出血少见;有2 个以上出血部位者占61 .9 % ,可出现大片脑梗塞及脑缺氧缺血性病变。硬膜下血肿及蛛网膜下腔出血吸收较完全;脑内血肿范围较大,特别是伴大片脑梗塞者可有脑软化灶和后遗症表现。结论: CT 检查可确定颅内出血部位及范围,并且对临床疗效观察和预后判断等方面起重要作用 Objective: To investigate CT diagnosis, curative effect and prognosis of intracranial hemorrhage caused by delayed vitamin K deficiency. Materials and Methods: The clinical data and CT data of 84 children diagnosed in 8 years were analyzed retrospectively. Results: CT showed that intracranial hemorrhage rate was 90.5%, subarachnoid hemorrhage was the most common, followed by subdural hemorrhage, intracerebral hemorrhage and intraventricular hemorrhage were rare. There were 61.9% patients with more than 2 hemorrhage sites, which could occur Large cerebral infarction and cerebral hypoxic-ischemic lesions. Subdural hematoma and subarachnoid hemorrhage absorption more completely; a large range of intracerebral hematoma, especially with large cerebral infarction may have cerebral softening and sequelae. Conclusion: CT examination can determine the location and extent of intracranial hemorrhage, and plays an important role in the observation of clinical efficacy and prognosis