颅脑疾病阅片.ppt

,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,.,*,医学影像诊断学,Department of Radiology WMC,医学影像诊断学,Department of Radiology WMC,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,/10/29,.,*,颅脑损伤,1,.,一、脑挫裂伤,2,.,3,.,脑挫裂伤；蛛网膜下腔出血,颅内积气；线形、凹陷骨折,脑挫裂伤（图）,4,.,脑挫裂伤（图）,5,.,二、弥漫性脑损伤,弥漫性脑损伤(,diffuse injury of brain),包括弥漫性脑水肿、弥漫性脑肿胀和弥漫性脑白质损伤。,6,.,7,.,弥漫性轴索损伤（图）,8,.,多个点状出血,.,脑外伤后昏迷,.,脑萎缩,.,9,.,左侧额叶皮层下白质,.,胼胝体,.,小斑点状出血水肿,.,10,.,11,.,12,.,三、颅内血肿,13,.,（一）硬膜外血肿,14,.,15,.,硬膜外血肿合并骨折,2,周后密度减低,硬膜外血肿（图）,16,.,多发硬膜外血肿（图）,17,.,18,.,（二）硬膜下血肿,19,.,额顶骨线样骨折,.,20,.,颅骨骨折、头皮血肿、对冲伤（急性硬膜下血肿）,21,.,外伤性颅内积气,.,多个气泡在蛛网膜下腔,.,气体来源,.,颅骨开放性骨折,.,颅底骨折（副鼻窦、乳突小房）,.,22,.,硬膜下血肿（图）,23,.,小脑幕及纵裂硬膜下血肿（图）,24,.,等密度硬膜下血肿（图）,25,.,亚急性硬膜下血肿（图）,26,.,亚急性硬膜下血肿（图）,27,.,28,.,29,.,30,.,（三）脑内血肿,31,.,32,.,脑内血肿（图）,33,.,34,.,四、硬膜下积液,35,.,硬膜下积液（图）,36,.,五、脑外伤后遗症,脑软化,脑萎缩,脑穿通畸形囊肿,脑积水,37,.,影像学表现:脑软化,38,.,影像学表现:脑萎缩,39,.,影像学表现：脑积水,40,.,脑穿通畸形囊肿（图）,41,.,42,.,脑血管疾病,43,.,一、脑梗死,（一）动脉性脑梗死,44,.,影像学表现：,CT,45,.,46,.,47,.,同上病例,48,.,49,.,同上病例,50,.,影像学表现：,MRI,51,.,T1WI,T2WI,52,.,同上病例,FLAIR,DWI,ADC,53,.,影像学表现：,MRI,54,.,影像学表现：,MRI,55,.,影像学表现：,MRI,56,.,（二）腔隙性脑梗死,57,.,影像学表现,58,.,59,.,60,.,61,.,62,.,同上病例,63,.,二、颅内出血,（一）高血压性脑出血,64,.,影像学表现：,CT,急性期,65,.,66,.,67,.,68,.,影像学表现：,CT,吸收期,69,.,70,.,71,.,影像学表现：,MRI,72,.,影像学表现：,MRI,73,.,影像学表现：,MRI,74,.,（二）蛛网膜下隙出血,75,.,影像学表现,76,.,影像学表现,77,.,5/31/2025,78,.,