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Computed tomography questions with correct answers.
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Computed tomography questions with correct answers.
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Computed tomography questions with correct answers.the process of creating a cross sectional tomographic plane of any part of the body ANS - Define computed tomography
rotates: detector assembly,algorithm, matrix, liquid crystal display(LCD) or cathode ray tube (CRT) ANS -
The xray tube________around the patient or part
gantry, computer and operator console, patient table ANS - list the 3 major compoents of a ct scanner
a digital postprocessing technique that has the ability to reconstruct CT axial images into toher planes without additional radiation to the patient ANS - what is multiplanar reconstruction?
head, chest and abdomen ANS - what are the 3 most commonly requested CT procedures?
IV, orally or rectally ANS - By what three routes is contrast introduced for CT procedures?
faster scans require faster contrast delivery ANS - why are power injectors needed for CT contrast procedures?
spatial resolution, contrast resolution, noise, artifacts ANS - What are the 4 main factors that affect CT image quality?
spatial resolution ANS - the amount of blurring in a CT image is described as?
contrast resolution ANS - the ability to differentiate between small differences in density within the image is termed? quantum noise ANS - The most common cause of noise in a CT iamge arises from the random variation in photon detection, or ________
to reduce the chance of residual barium in the GI tract causing artifiacts on the CT ANS - why would it be best to schedule a CT abdomen on a patient several days after the patients gastrointestial (GI)fluorscopy procedure?
spatial resolution ANS - Indicate the image quality factor affected FOV
noise,spatial resolution ANS - Indicate the image quality factor affected matrix size
spatial resolution,contrast resolution,noise ANS - Indicate the image quality factor affected slice thickness
artifacts ANS - Indicate the image quality factor affected dental fillings
noise,contrast resolution ANS - Indicate the image quality factor affected xray beam energy
spatial resolution ANS - Indicate the image quality factor affected focal spot size
artifacts ANS - Indicate the image quality factor affected residual barium
spatial resolution,contrast resolution,noise ANS - Indicate the image quality factor affected reconstruction algorithm
contrast resolution,noise ANS - Indicate the image quality factor affected patient size
slice thickness, scan time, scan diameter, and patient instructions ANS - list 4 image quality factors that are under the technologists control
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