后颅窝脑实质出血穿入脑室系统的CT研究

CT diagnosis of accumulation of blood in the ventricular system secondary to hemorrhage in the posterior cranial fossa

目的 :探讨后颅窝出血经脑室系统弥散的CT表现及临床意义。方法 :回顾性分析 2 3例后颅窝出血的CT检查资料。结果 :后颅窝出血经脑室系统弥散者 1 2例 ,其中第四脑室积血 1 2例 ,第三脑室积血 9例 ,侧脑室积血 8例。后颅窝出血穿入脑室与血肿体积有明显关系 (P <0 .0 1 ) ,第三脑室扩大在脑室积血与非积血者之间有显著差异 (P <0 .0 1 )。结论 :后颅窝出血可穿入第四脑室并经脑室系统弥散。CT检查对于发现病因及制定治疗方案具有重要意义。

Objective:To study the CT findings and clinical significance of accumulation of blood in the ventricular system secondary to hemorrhage in the posterior cranial fossa.Methods:CT findings of 23 cases with hemorrhage in the posterior cranial fossa were retrospectively analyzed.There was accumulation of blood in fourth ventricle(n=12),in third ventricle(n=9)and in lateral ventricle(n=8).Results:There were 12 cases of accumulation of blood in the ventricular system secondary to hemorrhage in the posterior cranial fossa.There was accumulation of blood in fourth rentricle (n=12),in third ventricle (n=9) and in lateral ventricle (n=8).Rupture of hematoma was definitely correlative with its size (P<0.01).In addition, there was significant difference of dilatation of the third ventricle between those with and without blood accumalation (P<0.01).Conclusions:Hemorrhage in the posterior cranial fossa could rupture into the fourth ventricle and diffuse in the ventricular system.CT can play an important role in finding the cause of the accumulation of bleeding and therapy planning.