11 дек. 2020 г. · Meningiomas and lymphomas also frequently appear as masses with high attenuation on CT. This can be due to calcification or dense cell packing, ...

Hyper-attenuating lesions on head NCCT scans performed after endovascular treatment of AIS may predict final brain infarcted areas.

30 окт. 2020 г. · CT attenuation of ischemic brain reduces with time after stroke onset. We aimed to quantify this relationship and test the feasibility and ...

10 дек. 2020 г. · A high attenuation lesion could also be a cavernoma! Magnetic resonance imaging (MRI) can be used to identify the presence of a dark ...

Lower density substances allow more photons pass through to the detectors, resulting in a grayer or blacker appearance on CT – like CSF.

18 июн. 2024 г. · The fogging phenomenon is seen on non-contrast CT or MRI of the brain and represents a transient phase of the evolution of cerebral infarct.

The density of the tissue is in proportion to the attenuation of the x-rays which pass through. Tissues like air and water have little attenuation and are ...

CT scan shows high-attenuation signals within the sulci of the cerebrum (white arrows), indicating traumatic subarachnoid hemorrhage.

The initial examination should be performed without intravenous contrast media to enable identification of haemorrhage and subtle areas of increased attenuation ...

Cranial CT scan (Figure 3) showed a huge right parietal and parieto-occipital hematoma with fluid level and midline shift. There was also mass effect on the ...