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Pneumoencephalography was associated with a wide range of side effects, including headaches and severe vomiting, often lasting well past the procedure. [2] During the study, the patient's entire body would be rotated into different positions in order to allow air to displace the CSF in different areas of the ventricular system and around the ...
During the last 150 years, thousands of papers focusing on the effects or side effects of magnetic or radiofrequency fields have been published. They can be categorized as incidental and physiological. [2] Contraindications to MRI include most cochlear implants and cardiac pacemakers, shrapnel and metallic foreign bodies in the eyes.
Causes in the brain: [citation needed] Concussion; Cerebral hemorrhage; Cerebral aneurysm; Migraine; Brain tumors, which can cause the chemoreceptors to malfunction; Benign intracranial hypertension and hydrocephalus; Metabolic disturbances (these may irritate both the stomach and the parts of the brain that coordinate vomiting): [citation needed]
[1] [4] Non-resolution of MRI abnormalities has been linked with poorer outcomes. [4] The presence of brain hemorrhage and cytotoxic edema (brain edema with concomittant brain tissue damage) is also associated with a poor prognosis. [2] If PRES was caused by pre-eclampsia or eclampsia the prognosis is better than in PRES due to other causes. [1 ...
Magnetic resonance imaging (MRI) is a medical imaging technique used in radiology to generate pictures of the anatomy and the physiological processes inside the body. MRI scanners use strong magnetic fields, magnetic field gradients, and radio waves to form images of the organs in the body.
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 between cytotoxic and vasogenic edema, guiding future treatment decisions.
Nausea and vomiting may have a number of causes in people with cancer. [7] While more than one cause may exist in the same person stimulating symptoms via more than one pathway, the actual cause of nausea and vomiting may be unknown in some people. The underlying causes of nausea and vomiting may in some cases not be directly related to the cancer.
Other symptoms can include neck pain or stiffness, nausea, vomiting, dizziness, fatigue, and a metallic taste in the mouth. A CT myelography scan can identify the site of a cerebrospinal fluid leakage.