MEDICINE
RADIOLOGY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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a second name for the production of periapical images
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the production of a blurred image
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the production of a clear, crisp image
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the process of imaging a desired structure while blurring of other areas
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Detailed explanation-1: -Tomography is an x-ray technique in which shadows of superimposed structures are blurred out by a moving x-ray tube. Conventional tomography is now less commonly used because of the availability of cross-sectional imaging techniques such as US, CT, and MRI.
Detailed explanation-2: -During a CT scan, the patient lies on a bed that slowly moves through the gantry while the x-ray tube rotates around the patient, shooting narrow beams of x-rays through the body. Instead of film, CT scanners use special digital x-ray detectors, which are located directly opposite the x-ray source.
Detailed explanation-3: -A computerized tomography (CT) scan combines a series of X-ray images taken from different angles around your body and uses computer processing to create cross-sectional images (slices) of the bones, blood vessels and soft tissues inside your body. CT scan images provide more-detailed information than plain X-rays do.
Detailed explanation-4: -Computed Tomography uses an X-ray tube, an elaborate radiation detection system and a computer that assembles the measurement data into a series of transversal slice of the subject’s body. The X-ray CT images of the brain were performed by using a Siemens Sensation 4 VA47 C.