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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]
A concern is the potential for CT to contribute to radiation-induced cancer and in 2007 it was estimated that 0.4% of current cancers in the United States were due to CTs performed in the past, and that in the future this figure may rise to 1.5–2% based on historical rates of CT usage. [59]
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 ...
[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 ...
Of the CT scans, six to eleven percent are done in children, [168] an increase of seven to eightfold from 1980. [167] Similar increases have been seen in Europe and Asia. [167] In Calgary, Canada, 12.1% of people who present to the emergency with an urgent complaint received a CT scan, most commonly either of the head or of the abdomen.
Visceral fat highest predictor of diabetes risk. Ryu and his team used deep learning algorithms to analyze study participants’ CT images. Using the CT markers of visceral fat, subcutaneous fat ...
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 ...