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Diffuse axonal injury after a motorcycle accident. MRI after 3 days: on T1-weighted images the injury is barely visible. On the FLAIR, DWI and T2*-weighted images a small bleed is identifiable. DAI is difficult to detect since it does not show up well on CT scans or with other macroscopic imaging techniques, though it shows up microscopically. [9]
Diffuse axonal injury, or DAI, usually occurs as the result of an acceleration or deceleration motion, not necessarily an impact. Axons are stretched and damaged when parts of the brain of differing density slide over one another. Prognoses vary widely depending on the extent of the damage.
Closed head injury (coup contrecoup) can damage more than the impact sites on the brain, as axon bundles may be torn or twisted, blood vessels may rupture, and elevated intracranial pressure can distort the walls of the ventricles. [7] [10] [11] Diffuse axonal injury is a key pathology in concussive brain injury. [5] The visual system may be ...
Diffuse axonal injury may be associated with coma when severe, and poor outcome. [10] Following the acute stage, prognosis is strongly influenced by the patient's involvement in activity that promote recovery, which for most patients requires access to a specialised, intensive rehabilitation service.
Focal and diffuse brain injury are ways to classify brain injury: focal injury occurs in a specific location, while diffuse injury occurs over a more widespread area. It is common for both focal and diffuse damage to occur as a result of the same event; many traumatic brain injuries have aspects of both focal and diffuse injury. [ 1 ]
Danielle Fishel is sharing an update about her health, saying she has completed “active cancer treatment” following her announcement in August that she was diagnosed with DCIS, which stands ...
In patients with mild TBI, the damage consists primarily of diffuse axonal injury (widespread damage to white matter) without any focal damage (damage to specific areas). Sometimes, injury of the brainstem was also observed. In these cases, there is likely the presence of an attentional deficit without a true amnesiac state.
Detroit Pistons guard Jaden Ivey was enjoying a career year, which will now have to be put on hold. The 2022 fifth overall pick underwent surgery on Thursday to repair a broken fibula in his left ...