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1977 Dutch newsreel about CT scan. A computed tomography scan(CT scan; formerly called computed axial tomography scanor CAT scan) is a medical imagingtechnique used to obtain detailed internal images of the body.[2] The personnel that perform CT scans are called radiographersor radiology technologists.
Because of the health risks of exposing children to radiation, ultrasound is the preferred first choice with CT scan being a legitimate follow-up if the ultrasound is inconclusive. [53] [54] [55] CT scan is more accurate than ultrasound for the diagnosis of appendicitis in adults and adolescents. CT scan has a sensitivity of 94%, specificity of 95%
Diverticulitis, also called colonic diverticulitis, is a gastrointestinal disease characterized by inflammation of abnormal pouches— diverticula —that can develop in the wall of the large intestine. [ 1 ] Symptoms typically include lower abdominal pain of sudden onset, but the onset may also occur over a few days. [ 1 ]
Full-body CT scan. A full-body scan is a scan of the patient's entire body as part of the diagnosis or treatment of illnesses. If computed tomography (CAT) scan technology is used, it is known as a full-body CT scan, though many medical imaging technologies can perform full-body scans.
Signs and symptoms. Intracranial hemorrhage is a serious medical emergency because the buildup of blood within the skull can lead to increases in intracranial pressure, which can crush delicate brain tissue or limit its blood supply. Severe increases in intracranial pressure (ICP) can cause brain herniation, in which parts of the brain are ...
Diverticulitis is defined as diverticular disease with signs and symptoms of diverticular inflammation. Clinical features of acute diverticulitis include constant abdominal pain, localized abdominal tenderness in the left lower quadrant of the abdomen, nausea, vomiting, constipation or diarrhea, fever and leukocytosis.
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 ...
The cause of most brain tumors is unknown, though up to 4% of brain cancers may be caused by CT scan radiation. [ 2 ] [ 8 ] Uncommon risk factors include exposure to vinyl chloride , Epstein–Barr virus , ionizing radiation , and inherited syndromes such as neurofibromatosis , tuberous sclerosis , and von Hippel-Lindau Disease .