Exam 23: Computed Tomography Simulation

The window level on a CT image is:

The first CT system used what type of machine movement to obtain image information?

CT was developed in 1973 by:

Forward planning uses all of the following techniques except:

Daily warmup procedures for the CT simulator should include: I.checking for laser alignment II.checking noise levels by using a water phantom LII.warming up the simulator according to the manufacturer's guidelines

Artifacts seen on a CT image are caused by:

What is a maximum intensity projection,or MIP?

What are the internal components in the CT gantry?

The quality of the beam must be checked:

The term pitch refers to:

Of the four desired qualities of a CT image,which refers to the ability to see shades of gray in tissue?

Image registration or fusion has all of the following characteristics except:

What are the rows and columns of cells on an image screen known as?

Mechanical and image quality checks should be evaluated by using the guidelines set by the:

Using a higher osmolality substance such as ionic iodine can greatly reduce adverse reactions with intravenous contrast agents.

Which of the following are common artifacts in CT scanning? I.partial volume artifacts II.ring and star artifacts III.motion artifacts

What are the varying electron densities displayed as pixels in shades of gray on the imaging screen?

The dose to the skin surface from a single CT slice is in the range of:

Window level is the range of numbers displayed or the contrast on a CT image.

The window width on a CT image is: