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单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,脑静脉窦血栓之诊疗概要,*,*,Causes of and Predisposing Factors for Cerebral Venous Thrombosis,1,脑静脉窦血栓之诊疗概要,10/1/2024,Causes of and Predisposing Fa,Clinical Features of Cerebral Venous Thrombosis,2,脑静脉窦血栓之诊疗概要,10/1/2024,Clinical Features of Cerebral,3,脑静脉窦血栓之诊疗概要,10/1/2024,3脑静脉窦血栓之诊疗概要10/3/2022,4,脑静脉窦血栓之诊疗概要,10/1/2024,4脑静脉窦血栓之诊疗概要10/3/2022,Acute stage(05 days),In the acute stage of thrombus formation,the signal is,predominantly isointense on T1WI and hypointense on T2WI,because of deoxyhemoglobin in red blood cells trapped in the thrombus,5,脑静脉窦血栓之诊疗概要,10/1/2024,Acute stage(05 days)In the,6,脑静脉窦血栓之诊疗概要,10/1/2024,6脑静脉窦血栓之诊疗概要10/3/2022,Subacute stage(615 days),In the subacute stage of thrombus development,,,the signal is predominantly,hyperintense on both T1WI and T2WI,because of methemoglobin in the thrombus,7,脑静脉窦血栓之诊疗概要,10/1/2024,Subacute stage(615 days)In,8,脑静脉窦血栓之诊疗概要,10/1/2024,8脑静脉窦血栓之诊疗概要10/3/2022,Chronic stage (15-day-old),the signal in a chronic thrombus is typically,isointense or hyperintense on T2WI and isointense on T1WI,Sinus enhancement is presumably secondary to an organized thrombus with intrinsic vascularization as well as to slow flow in dural and intrathrombus collateral channels,9,脑静脉窦血栓之诊疗概要,10/1/2024,Chronic stage (15-day-old)t,10,脑静脉窦血栓之诊疗概要,10/1/2024,10脑静脉窦血栓之诊疗概要10/3/2022,主要,CT,征象,11,脑静脉窦血栓之诊疗概要,10/1/2024,主要CT征象11脑静脉窦血栓之诊疗概要10/3/2022,正常静脉窦,CT,值,?,12,脑静脉窦血栓之诊疗概要,10/1/2024,正常静脉窦CT值?12脑静脉窦血栓之诊疗概要10/3/202,正常颅脑组织,CT,值,脑灰质,CT,值,34-39Hu,脑白质,CT,值,26-29Hu,静脉窦,CT,值,40-60Hu,13,脑静脉窦血栓之诊疗概要,10/1/2024,正常颅脑组织CT值脑灰质CT值34-39Hu13脑静脉窦血栓,直接征像,?,14,脑静脉窦血栓之诊疗概要,10/1/2024,直接征像?14脑静脉窦血栓之诊疗概要10/3/2022,束带征(索条征),15,脑静脉窦血栓之诊疗概要,10/1/2024,束带征(索条征)15脑静脉窦血栓之诊疗概要10/3/2022,高密度三角征,16,脑静脉窦血栓之诊疗概要,10/1/2024,高密度三角征16脑静脉窦血栓之诊疗概要10/3/2022,直窦及大脑大静脉血栓,17,脑静脉窦血栓之诊疗概要,10/1/2024,直窦及大脑大静脉血栓17脑静脉窦血栓之诊疗概要10/3/20,18,脑静脉窦血栓之诊疗概要,10/1/2024,18脑静脉窦血栓之诊疗概要10/3/2022,深静脉血栓,:,基底静脉及直窦密度增高,19,脑静脉窦血栓之诊疗概要,10/1/2024,深静脉血栓:基底静脉及直窦密度增高19脑静脉窦血栓之诊疗概,高密度血栓占25%,?,20,脑静脉窦血栓之诊疗概要,10/1/2024,高密度血栓占25%?20脑静脉窦血栓之诊疗概要10/3/2,双侧横窦及右侧乙状窦血栓,?,21,脑静脉窦血栓之诊疗概要,10/1/2024,双侧横窦及右侧乙状窦血栓?21脑静脉窦血栓之诊疗概要10/3,右侧横窦血栓,充盈缺损,22,脑静脉窦血栓之诊疗概要,10/1/2024,右侧横窦血栓 充盈缺损22脑静脉窦血栓之诊疗概要10/3,Empty delta sign,23,脑静脉窦血栓之诊疗概要,10/1/2024,Empty delta sign23脑静脉窦血栓之诊疗概要1,24,脑静脉窦血栓之诊疗概要,10/1/2024,24脑静脉窦血栓之诊疗概要10/3/2022,?,25,脑静脉窦血栓之诊疗概要,10/1/2024,?25脑静脉窦血栓之诊疗概要10/3/2022,Pseudo empty delta sign,26,脑静脉窦血栓之诊疗概要,10/1/2024,Pseudo empty delta sign26脑静脉窦血,Arachnoid granulations,27,脑静脉窦血栓之诊疗概要,10/1/2024,Arachnoid granulations27脑静脉窦血栓,间接征像,静脉性梗死、水肿、静脉性出血,28,脑静脉窦血栓之诊疗概要,10/1/2024,间接征像静脉性梗死、水肿、静脉性出血28脑静脉窦血栓之诊疗概,29,脑静脉窦血栓之诊疗概要,10/1/2024,29脑静脉窦血栓之诊疗概要10/3/2022,左侧额顶叶静脉性脑梗死伴静脉性脑出血,30,脑静脉窦血栓之诊疗概要,10/1/2024,左侧额顶叶静脉性脑梗死伴静脉性脑出血30脑静脉窦血,31,脑静脉窦血栓之诊疗概要,10/1/2024,31脑静脉窦血栓之诊疗概要10/3/2022,右侧额顶叶静脉性脑出血,32,脑静脉窦血栓之诊疗概要,10/1/2024,右侧额顶叶静脉性脑出血32脑静脉窦血栓之诊疗概要10/3/2,动脉性脑出血,33,脑静脉窦血栓之诊疗概要,10/1/2024,动脉性脑出血33脑静脉窦血栓之诊疗概要10/3/2022,紫绀型心脏病(法洛氏四联症),高血红蛋白血症,?,34,脑静脉窦血栓之诊疗概要,10/1/2024,紫绀型心脏病(法洛氏四联症),高血红蛋白血症?34脑静脉窦血,总 结,35,脑静脉窦血栓之诊疗概要,10/1/2024,总 结35脑静脉窦血栓之诊疗概要10/3/2022,主要,CT,征像,直接征像:束带征(索条征)、高密度三角征;,CTV,见充盈缺损或空三角征,间接,征像:脑肿胀;脑水肿;静脉性脑梗塞;静脉性脑出血等。,36,脑静脉窦血栓之诊疗概要,10/1/2024,主要CT征像直接征像:束带征(索条征)、高密度三角征;CT,主要,MRI,征象,流空影消失,(,T2WI,),增强扫描:充盈缺损,MRV,静脉或静脉窦不显影,37,脑静脉窦血栓之诊疗概要,10/1/2024,主要MRI征象流空影消失(T2WI)37脑静脉窦血栓之诊疗概,谢谢!,38,脑静脉窦血栓之诊疗概要,10/1/2024,谢谢!38脑静脉窦血栓之诊疗概要10/3/2022,
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