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[1] [3] CT scan is the imaging modality of choice as it is widely available, quick, and with minimal risks. [1] However, CT scan can be limited in determining the exact cause of cerebral edema in which cases, CT angiography (CTA), MRI, or digital subtraction angiography (DSA) may be necessary. MRI is particularly useful as it can differentiate ...
CT scan detects and precisely localizes the intracranial hematomas, cerebral contusions, edema and foreign bodies. [ 2 ] Even in emergency situations, when a head injury is minor as determined by a physician's evaluation and based on established guidelines, CT of the head should be avoided for adults and delayed pending clinical observation in ...
There is slight edema and loss of normal architecture in the surrounding neuropil. Ischemic strokes usually present as a problem with nerve, spinal cord, or brain function. Depending on where the stroke is located in the brain, symptoms may start within minutes, or they make take hours to present themselves. Most strokes occur without warning.
A CT scan is the best test to look for bleeding in or around your brain. In some hospitals, a perfusion CT scan may be done to see where the blood is flowing and not flowing in your brain. Magnetic resonance imaging (MRI scan) : A special MRI technique ( diffusion MRI ) may show evidence of an ischemic stroke within minutes of symptom onset.
Unequal pupil size is potentially a sign of a serious brain injury. [39] Symptoms are dependent on the type of TBI (diffuse or focal) and the part of the brain that is affected. [40] Unconsciousness tends to last longer for people with injuries on the left side of the brain than for those with injuries on the right. [15]
The congestion in the brain's blood vessels may be visible using CT scans. [27] SIS is distinct from repetitive head injury syndrome, in which a person has a series of minor head injuries over time and experiences a slow decline in functions such as cognitive abilities. [1]
Other symptoms include difficulty speaking, slurred speech, and the loss of coordination. [8] The symptoms of brain ischemia range from mild to severe. Further, symptoms can last from a few seconds to a few minutes or extended periods of time. If the brain becomes damaged irreversibly and infarction occurs, the symptoms may be permanent. [9]
Headaches, occasional dizziness, and fatigue—all temporary symptoms of brain trauma—may become permanent, or may not disappear for a long time. There are documented cases of lasting psychological effects as well, such as emotional changes often caused by damage to the various parts of the brain that control human emotions and behavior. [20]