Air Encephalography and Angiography Air Encephalography and
... and Angiography Like all imaging, the key to visualisation is detecting contrast. In 1917, a case report from London appeared in the English medical literature of a patient with headaches and a feeling that ‘her brain was splashing’. Radiography showed air inside the head, due presumably to a dural ...
... and Angiography Like all imaging, the key to visualisation is detecting contrast. In 1917, a case report from London appeared in the English medical literature of a patient with headaches and a feeling that ‘her brain was splashing’. Radiography showed air inside the head, due presumably to a dural ...
Migraine – how does it develop | CHANGE PAIN
... Intense pain Two mechanisms are responsible for the intense pain. Firstly, pain sensors are sensitised by the inflammation of the vessels. Secondly, the body’s own pain-inhibiting system is disturbed in migraine. These mechanisms together lead to every pulsation being perceived as intense pain. ...
... Intense pain Two mechanisms are responsible for the intense pain. Firstly, pain sensors are sensitised by the inflammation of the vessels. Secondly, the body’s own pain-inhibiting system is disturbed in migraine. These mechanisms together lead to every pulsation being perceived as intense pain. ...
I. Global ischemia
... - Neuronal loss in transient global ischemia is due to excitotoxicity - The susceptible neurons have many receptors to the excitatory neurotransmitter glutamate - So in transient global ischemia, the astrocytes release glutamate that binds to its neuronal receptors NMDA (N-methyl D-aspartate) leadin ...
... - Neuronal loss in transient global ischemia is due to excitotoxicity - The susceptible neurons have many receptors to the excitatory neurotransmitter glutamate - So in transient global ischemia, the astrocytes release glutamate that binds to its neuronal receptors NMDA (N-methyl D-aspartate) leadin ...
Chapter 14
... Retrograde amnesia – past memories Antegrade amnesia – new memories Temporary or permanent (severe head injury or ...
... Retrograde amnesia – past memories Antegrade amnesia – new memories Temporary or permanent (severe head injury or ...
7 stroke part 2
... Depending on circumstances, other helpful tests – Echocardiogram – identifies mural thrombus, tumor, valvular vegetations in suspected cardioembolic stroke ...
... Depending on circumstances, other helpful tests – Echocardiogram – identifies mural thrombus, tumor, valvular vegetations in suspected cardioembolic stroke ...
Traumatic Brain Injury
... determination of severity in the outcome in head injured patients -To define the consequences of traumatic events - case studies ...
... determination of severity in the outcome in head injured patients -To define the consequences of traumatic events - case studies ...
A1980JG24200001
... with brain tumors autoregulation of CBF is present! 4-5 This is so, even though we know that with milder degrees of the same noxious stimuli the mechanism is. indeed abolished! This paradox was first thought to be caused by a massive variation in intracranial pressure in the ‘worst’ cases. Now it ap ...
... with brain tumors autoregulation of CBF is present! 4-5 This is so, even though we know that with milder degrees of the same noxious stimuli the mechanism is. indeed abolished! This paradox was first thought to be caused by a massive variation in intracranial pressure in the ‘worst’ cases. Now it ap ...
Transcranial Doppler
The Transcranial Doppler (TCD) and the more recent transcranial color Doppler (TCCD) are tests that measure the velocity of blood flow through the brain's blood vessels. The tests are used to help diagnosie emboli, stenosis, vasospasm from a subarachnoid hemorrhage (bleeding from a ruptured aneurysm), and other problems. These relatively quick and inexpensive test s are growing in popularity. The tests are effective for detecting sickle cell disease, ischemic cerebrovascular disease, subarachnoid hemorrhage, arteriovenous malformations, and cerebral circulatory arrest. The tests are possibly useful for perioperative monitoring and meningeal infection. The equipment used for these tests is becoming increasingly portable, making it possible for a clinician to travel to a hospital, to a doctor's office, or to a nursing home for both inpatient and outpatient studies. The tests are often used in conjunction with other tests such as MRI, MRA, carotid duplex ultrasound and CT scans. The tests are also used for research in cognitive neuroscience (see Functional transcranial Doppler, below).