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Several different views of the head are available, including axial, coronal, reformatted coronal, and reformatted sagittal images. However, coronal images require the person to hyperextend their neck, which must be avoided if any possibility of neck injury exists. [8] CT scans of the head increase the risk of brain cancer, especially for ...
The major risk with oral agents is ischemic symptoms (e.g., angina pectoris, myocardial infarction, or stroke) due to an excessive and uncontrolled hypotensive response. [23] Thus, their use should generally be avoided in the treatment of hypertensive crises if more controllable drugs are available. [citation needed]
Dangerous mechanism (this is defined by Stiell et al. (2005) as "a pedestrian struck by a motor vehicle, an occupant ejected from a motor vehicle, or a fall from an elevation of 3 or more feet or 5 stairs." [4]) The first five criteria are considered "high-risk", whereas criteria 6 and 7 are considered "medium-risk". [4]
In the majority of cases, if there has not been any acute trauma or severe neurologic symptoms, a small subdural hygroma on the head CT scan will be an incidental finding. If there is an associated localized mass effect that may explain the clinical symptoms, or concern for a potential chronic SDH that could rebleed, then an MRI, with or ...
CT scan has 100% sensitivity of detecting SAH at 6 to 24 hours after symptoms onset. [3] The diagnosis is generally confirmed with a CT scan of the head. If CT scan is normal but SAH is still strongly suspected, lumbar puncture can be done at six to twelfth hours after the onset of headache
CT scans of patients with a tension pneumocephalus typically show air that compresses the frontal lobes of the brain, which results in a tented appearance of the brain in the skull known as the Mount Fuji sign. [1] [2] [3] The name is derived from the resemblance of the brain to Mount Fuji in Japan, a volcano known for its symmetrical cone.
The relative risk of post-traumatic seizures (PTS) increases with the severity of traumatic brain injury (TBI). [128] A CT of the head years after a traumatic brain injury showing an empty space where the damage occurred marked by the arrow. Improvement of neurological function usually occurs for two or more years after the trauma.
Medical condition Subarachnoid hemorrhage Other names Subarachnoid haemorrhage CT scan of the brain showing subarachnoid hemorrhage as a white area in the center (marked by the arrow) and stretching into the sulci to either side Pronunciation / ˌ s ʌ b ə ˈ r æ k n ɔɪ d ˈ h ɛ m ər ɪ dʒ / Specialty Neurosurgery, Neurology Symptoms Severe headache of rapid onset, vomiting, decreased ...