Exam 8: Image Postprocessing and Visualization Tools

Windowing is an example of a linear image manipulation technique.

Windowing in computed tomography is an example of:

Which of the following controls the contrast of the computed tomography image?

The window level in computed tomography is the:

One industry standard in data transfer and connectivity is:

The computed tomography number for water is +1000.

If the window width setting is 200 and the window length is 0, which of the following occurs?

A large window width means a long gray scale.

The window width and window length settings for a given examination of the abdomen are 400 and 0, respectively. Which of the following is true?

Windowing does not make use of the computed tomography numbers.

Which advanced tool in computed tomography allows users to view a large set of images very quickly?

Which of the following is a plot of the pixel values as a function of their frequency of occurrence?

Through the manipulation of computed tomography numbers of the various tissues, the picture can be changed to show soft tissues and dense structures such as bone.

Windowing is the most common image processing technique in computed tomography.

Which of the following fall into the category of a linear image manipulation technique(s)? I. image enhancement II. contrast stretching III. image smoothing