Exam 8: Image Postprocessing and Visualization Tools

Which of the following generates sagittal, coronal, and paraxial images from transaxial slices?

One major disadvantage of multiplanar reconstruction is that images are not as good as those obtained in transaxial images.

A large window width indicates that there is a relatively ______________ gray scale.

Gray-level mapping belongs to the class of:

Which of the following belongs to the class of nonlinear image manipulation techniques?

Reconstruction synthesis operations create images from other images or nonimage data.

The range of computed tomography numbers is the window length.

Which of the following are advantages to reformatted images? I. enable visualization of specific structures II. determine true extent of lesions and fractures III. provide images more pleasing to the eye

When the window length is centered on the lungs, the image display is optimized for the lungs.

In which of the following are pixels in a certain region of the image made to appear brighter?

Which of the following determines the maximum number of gray shades to be displayed on the television monitor?

Multiplanar reconstruction creates three-dimensional images from the transaxial data set.

A narrow window width implies that the transition from black to white will take place over a wide range of computed tomography numbers.

A narrow window width means fewer computed tomography numbers.

The window width in computed tomography is the:

Image smoothing is an example of a linear image manipulation technique.

Which of the following are categories of three-dimensional rendering? I. surface-shaded display II. volume rendering III. maximum and minimum intensity projections

Which of the following optimizes the image display for a particular structure?

As the window width increases, picture contrast:

As the window width decreases, the image contrast increases.