CT for tech book wrong answers Flashcards
1
Q
the ability of a system to differentiate, on the image, objects with similar densities is known as:
A
LOW CONTRAST RESOLUTION
2
Q
scan thickness is primarily important for the part it plays in.
A
volume averaging
3
Q
how many CT numbers are assigned to each pixel in the image matrix?
A
1
4
Q
the process of converting the data from the attenuation profile to a matrix is known as:
A
back projection
5
Q
why is it necessary to convert the digitized data from the reconstruction to shades of grey?
A
so the image can be displayed on the monitor
6
Q
decreasing the window width on a CT image decreases the:
A
anatomic diversity.
7
Q
on a Ct image an ROI is placed within a structure and measured. its standard deviation is 0. what can be determined about this structure?
A
it is very homogeneous.
