-
Categories
-
Pharmaceutical Intermediates
-
Active Pharmaceutical Ingredients
-
Food Additives
- Industrial Coatings
- Agrochemicals
- Dyes and Pigments
- Surfactant
- Flavors and Fragrances
- Chemical Reagents
- Catalyst and Auxiliary
- Natural Products
- Inorganic Chemistry
-
Organic Chemistry
-
Biochemical Engineering
- Analytical Chemistry
-
Cosmetic Ingredient
- Water Treatment Chemical
-
Pharmaceutical Intermediates
Promotion
ECHEMI Mall
Wholesale
Weekly Price
Exhibition
News
-
Trade Service
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 )
.
leave a message here
