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    Home > Active Ingredient News > Study of Nervous System > "Cerebral vascular high density sign" must be infarction?

    "Cerebral vascular high density sign" must be infarction?

    • Last Update: 2022-05-24
    • Source: Internet
    • Author: User
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    Cerebrovascular hyperdense sign, which can appear in any intracranial artery or even vein, is an early and direct sign of arterial occlusion on CT scan, representing thrombosis or embolism, and has certain significance for early diagnosis


    Cerebrovascular hyperdense sign, which can appear in any intracranial artery or even vein, is an early direct sign of arterial occlusion on CT scan, representing thrombosis or embolism, and has certain significance for early diagnosis and guidance of cerebral infarction .


    The most common cerebral artery hyperdense sign is the middle cerebral artery hyperdense sign ( HMCAS ), followed by the basilar artery hyperdense sign ( HBAS )


    Theoretically, if there is a light-transmitting area around normal arteries, normal blood vessels can appear as high-density, especially arteries running in low-density cerebrospinal fluid at the base of the brain


    The detection rate of cerebral artery hyperdense sign is related to the examination time and the resolution of CT .


    Most studies believe that HMCAS is closely related to the severity of clinical manifestations of cerebral infarction.


    According to the traditional classification, cerebral infarction can be divided into: acute phase <24 hours, subacute phase 24 hours to 6 weeks, chronic phase > 6 weeks


     

    The upper two shows the basilar artery center point sign, which was clinically confirmed as basilar artery embolism


    The upper two shows the basilar artery center point sign, which was clinically confirmed as basilar artery embolism
    .
    The lower left image shows the basilar artery with dot-like high density ( arrow ) ; the lower right image shows the filling defect of the posterior cerebral artery on both sides of the basilar artery ( arrow )
    .


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