Search results
Results from the WOW.Com Content Network
Volume rendered CT scan of a pregnancy at 37 weeks of gestational age. Obstetric ultrasonography showing a fetus at 14 weeks of gestational age, through the median plane. Radiocontrast-enhanced median plane CT scan of a pregnancy at 37 weeks of gestational age. Plain abdominal Xray of a pregnant women
A computed tomography scan (CT scan), formerly called computed axial tomography scan (CAT scan), is a medical imaging technique used to obtain detailed internal images of the body. [2] The personnel that perform CT scans are called radiographers or radiology technologists.
As with any test that screens for disease, the risks of full-body CT scans need to be weighed against the benefit of identifying a treatable disease at an early stage. [6] An alternative to a full-body CT scan may be Magnetic resonance imaging (MRI) scans. MRI scans are generally more expensive than CT but do not expose the patient to ionizing ...
Main page; Contents; Current events; Random article; About Wikipedia; Contact us; Help; Learn to edit; Community portal; Recent changes; Upload file
Barium sulfate suspension, often simply called barium, is a contrast agent used during X-rays. [1] Specifically it is used to improve visualization of the gastrointestinal tract (esophagus, stomach, intestines) on plain X-ray or computed tomography. [2]
Cone-beam spiral computed tomography (CT) is a medical imaging technology that has impacted healthcare since its development in the early 1990s. [ 1 ] [ 2 ] This technology offers advancements over traditional fan-beam CT, including faster scanning speed, higher image quality, and the ability to generate true three-dimensional volumes, even ...
CT of the chest: 7 mSv: 2 years CT of the chest, lung cancer screening protocol: 1.5 mSv: 6 months Chest X-ray: 0.1 mSv: 10 days Heart: Coronary CT angiography: 12 mSv: 4 years Coronary CT calcium scan: 3 mSv: 1 year Abdominal: CT of abdomen and pelvis: 10 mSv: 3 years CT of abdomen and pelvis, low dose protocol: 3 mSv [15] 1 year
CT scans of the head increase the risk of brain cancer, especially for children. As of 2018, it appeared that there was a risk of one excess cancer per 3,000–10,000 head CT exams in children under the age of 10. [11]