Calculate the distance covered in a SDCT helical scan using a 1 second tube rotation, 5mm slice thickness, pitch of 1, 30 second total acquisition time and a DFOV of 20 cm.
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The mathematical techniques used by the computer to reconstr…
The mathematical techniques used by the computer to reconstruct the computed tomography image are known as:
The data acquisition system, or DAS, measures the number of…
The data acquisition system, or DAS, measures the number of photons that strikes the detector, converts the information to a _______signal, and sends the signal to the computer.
The couch top (table top) of a computed tomography scanner t…
The couch top (table top) of a computed tomography scanner table should have the following:I. low radiation absorption characteristicsII. made of carbon fiberIII. excellent vibration-damping features
Attenuation of a beam of radiation depends on:
Attenuation of a beam of radiation depends on:
An increase of matrix size (with no change in field of view)…
An increase of matrix size (with no change in field of view) will ____________ detail.
Who developed the first clinically useful computed tomograph…
Who developed the first clinically useful computed tomography scanner?
The scanner gantry aperture is a measure of the:
The scanner gantry aperture is a measure of the:
What is it called when a patient breathes differently with e…
What is it called when a patient breathes differently with each data acquisition and areas of anatomy seem to be misplaced along the z-axis?
Select the most appropriate window level for the for the bes…
Select the most appropriate window level for the for the best image display for the tissue in question::