Exam 16: Computed Tomography

The snapshot of all the transmission measurements at a specific location is the

For single-slice CT,this collimator controls the slice thickness

CT examinations currently account for approximately ________ of the U.S.population's radiation exposure resulting from medical procedures

The major development for the first three generations of CT scanners was the reduction in patient exposure.

Children require special considerations in CT imaging because

Metal in the area being imaged produces a

Spiral scanning collects data for

Also known as low contrast resolution,this quality determines the system's ability to distinguish between very similar tissues

The actual anatomy being imaged for the CT study is determined by the

The raw data is the

Which of the following data needs to be known to perform an attenuation calculation?

The device that absorbs the radiation and produces an electrical signal is the

This advancement has the tube rotating inside the gantry while the patient and table move through the gantry in a continuous motion.

This artifact is specific to third-generation scanners

Hounsfield unit is another name for the CT number.

To focus on dose optimization,it is important to balance reductions in patient dose with

The sequence of computer operations for accomplishing a specific task,such as reconstruction is a(n)

Computed tomography was introduced in the

Automatic control of tube current along all three axes is

The beam-hardening artifact can be reduced by