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Computed tomography (CT) has become the diagnostic modality of choice for head trauma due to its accuracy, reliability, safety, and wide availability. The changes in microcirculation, impaired auto-regulation, cerebral edema, and axonal injury start as soon as head injury occurs and manifest as clinical, biochemical, and radiological changes.
The International Headache Society updated their classification of headaches in 2004. [31] A third version was published in 2018. [116] According to this classification, migraine is a primary headache disorder along with tension-type headaches and cluster headaches, among others. [117]
Headache, also known as cephalalgia, is the symptom of pain in the face, head, or neck. It can occur as a migraine, tension-type headache, or cluster headache. [1][2] There is an increased risk of depression in those with severe headaches. [3] Headaches can occur as a result of many conditions. There are a number of different classification ...
The Canadian CT head rule (abbreviated CCTHR or CCHR; also sometimes referred to as the Canadian Computed Tomography Head Rule) [1][2] is a medical scale used to decide whether patients with minor head injuries should undergo cranial CT scans. It was originally described by Stiell et al. in a paper published in the Lancet in 2001, in which they ...
Neuroimaging is the use of quantitative (computational) techniques to study the structure and function of the central nervous system, developed as an objective way of scientifically studying the healthy human brain in a non-invasive manner. Increasingly it is also being used for quantitative research studies of brain disease and psychiatric ...
Orthostatic headache is a medical condition in which a person develops a headache while vertical and the headache is relieved when horizontal. [1][2] Previously it was often misdiagnosed as different primary headache disorders such as migraine or tension headaches. Increasing awareness of the symptom and its causes has prevented delayed or ...
Short-lasting unilateral neuralgiform headache with conjunctival injection and tearing (SUNCT syndrome) is a rare headache disorder that belongs to the group of headaches called trigeminal autonomic cephalalgia (TACs). [ 1 ] Symptoms include excruciating burning, stabbing, or electrical headaches mainly near the eye and typically these ...
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 ...