Exam 12: Multislice Spiralhelical Computed Tomography: Physical Principles and Instrumentation

The definition of pitch in a multislice scanner, as defined by the International Electrotechnical Commission, states:

All of the following terms are used to refer to multislice computed tomography except:

Which of the following are physical properties of detectors? I. high luminescence efficiency II. large dynamic range III. small afterglow

Which of the following are considered categories of approximate cone-beam algorithms? I. two-dimensional algorithms II. three-dimensional algorithms III. four-dimensional algorithms

As the pitch increases, the image quality:

Another application of the dual-source computed tomography scanner includes imaging of obese patients.

The first model of the 256-slice four-dimensional computed tomography scanner was developed in:

In a multislice computed tomography scanner, what type of algorithm can be used if the number of detector rows is small?

All of the following are materials used in solid-state detectors except:

The operator console controls all of the following except:

In 1992, the first modern multislice scanner was introduced by:

Dual-source computed tomography scanners are primarily used for:

Some clinical benefits of subsecond scanning include: I. reduced motion artifacts II. greater scan coverage III. reduced patient dose

What is the term used to describe the flipped view used for interpolated reconstruction?

Detector row collimation is equal to:

In multislice computed tomography a _________ beam geometry results, rather than a fan beam as in single-slice computed tomography scanners.

Which of the following are parameters of image quality? I. spatial resolution II. contrast resolution III. noise

Which of the following is/are types of detectors used in multislice computed tomography scanners? I. hybrid detectors II. nonuniform detectors III. uniform detectors

Which of the following are considered cone-beam algorithms? I. approximate algorithms II. exact algorithms III. opposed algorithms

What term is used to describe the resorting of the three-dimensional data collected from the cone-beam acquisition to a set of two-dimensional fan-beam data?