Exam 41: Computed Tomography

If the table is moving at 10 mm/sec., and a section thickness of 8 mm is being acquired, what is the pitch?

To achieve coronal or sagittal sections,

If the table is moving at 5 mm/sec., and a pitch of 1.5 is being used, what is the section thickness?

As noise increases in a CT image,

The smaller the scan field size, the

First-generation CT scanners scanned the ____ only.

If a pitch of 1.0 is being used with a section thickness of 8 mm, what is the proper table speed?

A ____ artifact is caused by motion.

The localization image produced by the CT scanner is technically called a/an

A ____ artifact is caused by detector error.

The CT radiographer usually varies the ____ to control the primary beam.

The process of combining detector elements into various combinations in order set slice thickness is called detector

The process of modifying pixel values by a mathematical formula is called

Computed tomography sections are available as

CT scan pitch uses all of the following technical parameters EXCEPT

The resolution of the CT image depends on the

The ____ is how well the detectors convert incoming photons.

The primary mathematical method used in the creation of computerized medical images is the ____ transformation.

The calculation of CT numbers is based upon the calculation of

If a pitch of 0.5 is being used with a section thickness of 10 mm, what is the proper table speed?