Question 1

Even with slip-ring technology, long high-tension cables are needed for data transfer.

Accepted Answer

A) True 
 B)False

Question 2

What term is used to describe the number of data collection channels and the effective section thickness determined by the data acquisition system settings?

Accepted Answer

A)  Detector array 
B)  Detector configuration 
C)  Detector geometry 
D)  Detector set 
A)  Detector array 
B)  Detector configuration 
C)  Detector geometry 
D)  Detector set

Question 3

All of the following are housed in the MSCT gantry except:

Accepted Answer

A)  detectors. 
B)  detector electronics. 
C)  collimation selector. 
D)  X-ray tube. 
A)  detectors. 
B)  detector electronics. 
C)  collimation selector. 
D)  X-ray tube.

Question 4

The operator console controls all of the following except:

Accepted Answer

A)  communication. 
B)  control of the gantry. 
C)  patient dose. 
D)  windowing. 
A)  communication. 
B)  control of the gantry. 
C)  patient dose. 
D)  windowing.

Question 5

Which of the following is not a type of detectors used in MSCT scanners?

Accepted Answer

A)  Hybrid detectors 
B)  Universal detectors 
C)  Nonuniform detectors 
D)  Uniform detectors 
A)  Hybrid detectors 
B)  Universal detectors 
C)  Nonuniform detectors 
D)  Uniform detectors

Question 6

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

Accepted Answer

A)  calcium tungsten. 
B)  gadolinium oxysulfide (GOS). 
C)  gadolinium oxide. 
D)  yttrium-gadolinium oxide. 
A)  calcium tungsten. 
B)  gadolinium oxysulfide (GOS). 
C)  gadolinium oxide. 
D)  yttrium-gadolinium oxide.

Question 7

An algorithm common in MSCT scanners is the FDK algorithm.

Accepted Answer

A) True 
 B)False

Question 8

Pitch is directly related to:

Accepted Answer

A)  patient dose. 
B)  kVp. 
C)  patient comfort. 
D)  detector configuration. 
A)  patient dose. 
B)  kVp. 
C)  patient comfort. 
D)  detector configuration.

Question 9

The photodiodes convert _________ into ________.

Accepted Answer

A)  light; X-ray photons 
B)  X-ray photons; light 
C)  light; electrical signals 
D)  electric signals; light 
A)  light; X-ray photons 
B)  X-ray photons; light 
C)  light; electrical signals 
D)  electric signals; light

Question 10

Pitch affects both image quality and patient dose.

Accepted Answer

A) True 
 B)False

Question 11

The first model of the 256-slice 4D CT scanner was developed in:

Accepted Answer

A) 2001. 
B) 2002. 
C) 2003. 
D) 2004. 
A) 2001. 
B) 2002. 
C) 2003. 
D) 2004.

Question 12

Another application of the DSCT scanner includes imaging of obese patients.

Accepted Answer

A) True 
 B)False

Question 13

All the following are typical scan parameters for spiral/helical CT scanners except:

Accepted Answer

A)  table speed. 
B)  scan range. 
C)  number of revolutions. 
D)  patient size. 
A)  table speed. 
B)  scan range. 
C)  number of revolutions. 
D)  patient size.

Question 14

A number of interpolation algorithms are used to produce the planar data set, but linear interpolation (LI) is the simplest approach.

Accepted Answer

A) True 
 B)False

Question 15

To prevent anode movement under the stress of subsecond acceleration, new X-ray tubes have the anode mounted on a shaft that extends along the tube.

Accepted Answer

A) True 
 B)False

Question 16

What allows the X-ray tube to continuously rotate so that a volume of the patient can be acquired?

Accepted Answer

A)  Detector electronics 
B)  Long high-tension cables 
C)  Slip rings 
D)  Tube electronics 
A)  Detector electronics 
B)  Long high-tension cables 
C)  Slip rings 
D)  Tube electronics

Question 17

What term is used to describe the separating of the direct and complementary data trails and also results in efficient z-sampling?

Accepted Answer

A)  Efficient sampling scan 
B)  Complete sampling scan 
C)  Optimized sampling scan 
D)  Total sampling scan 
A)  Efficient sampling scan 
B)  Complete sampling scan 
C)  Optimized sampling scan 
D)  Total sampling scan

Question 18

The overall goal of single-slice spiral/helical volume CT is to increase the volume coverage speed compared with that of the conventional CT scanner.

Accepted Answer

A) True 
 B)False

Question 19

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

Accepted Answer

A)  P = distance the table travels per rotation (d)/total collimation (W) 
B)  P = distance the table travels per rotation (d) + total collimation (W) 
C)  P = distance the table travels per rotation (d) * total collimation (W) 
D)  P = total collimation (W)/distance the table travels per rotation (d) 
A)  P = distance the table travels per rotation (d)/total collimation (W) 
B)  P = distance the table travels per rotation (d) + total collimation (W) 
C)  P = distance the table travels per rotation (d) * total collimation (W) 
D)  P = total collimation (W)/distance the table travels per rotation (d)

Question 20

Volume CT can also be referred to as:

Accepted Answer

A)  spiral CT. 
B)  circular CT. 
C)  rounded CT. 
D)  spherical CT. 
A)  spiral CT. 
B)  circular CT. 
C)  rounded CT. 
D)  spherical CT.

Even with slip-ring technology, long high-tension cables are needed for data transfer.

What term is used to describe the number of data collection channels and the effective section thickness determined by the data acquisition system settings?

All of the following are housed in the MSCT gantry except:

The operator console controls all of the following except:

Which of the following is not a type of detectors used in MSCT scanners?

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

An algorithm common in MSCT scanners is the FDK algorithm.

Pitch is directly related to:

The photodiodes convert _ into .

Pitch affects both image quality and patient dose.

The first model of the 256-slice 4D CT scanner was developed in:

Another application of the DSCT scanner includes imaging of obese patients.

All the following are typical scan parameters for spiral/helical CT scanners except:

A number of interpolation algorithms are used to produce the planar data set, but linear interpolation (LI) is the simplest approach.

To prevent anode movement under the stress of subsecond acceleration, new X-ray tubes have the anode mounted on a shaft that extends along the tube.

What allows the X-ray tube to continuously rotate so that a volume of the patient can be acquired?

What term is used to describe the separating of the direct and complementary data trails and also results in efficient z-sampling?

The overall goal of single-slice spiral/helical volume CT is to increase the volume coverage speed compared with that of the conventional CT scanner.

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

Volume CT can also be referred to as:

Computed Tomography: an Overview

Digital Image Processing

Physical Principles of Computed Tomography

Data Acquisition Concepts

Image Reconstruction

Iterative Reconstruction Basics

Basic Instrumentation

Image Postprocessing and Visualization Tools

Image Quality

Radiation Dose in Computed Tomography

Other Technical Applications of Computed Tomography Imaging: Basic Principles

Three-Dimensional Computed Tomography: Basic Concepts

Positron Emission Tomographyct Petct and Single-Photon Emission Computed Tomographyct Spectct Hybrid Scanners

Computed Tomography of the Head, Cerebral Vessels, Neck, and Spine

Computed Tomography of the Body

Pediatric Computed Tomography

Quality Control for Computed Tomography Scanners

Filters

Exam 11: Multislice Computed Tomography: Physical Principles and Instrumentation

Even with slip-ring technology, long high-tension cables are needed for data transfer.

What term is used to describe the number of data collection channels and the effective section thickness determined by the data acquisition system settings?

All of the following are housed in the MSCT gantry except:

The operator console controls all of the following except:

Which of the following is not a type of detectors used in MSCT scanners?

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

An algorithm common in MSCT scanners is the FDK algorithm.

Pitch is directly related to:

The photodiodes convert _________ into ________.

Pitch affects both image quality and patient dose.

The first model of the 256-slice 4D CT scanner was developed in:

Another application of the DSCT scanner includes imaging of obese patients.

All the following are typical scan parameters for spiral/helical CT scanners except:

A number of interpolation algorithms are used to produce the planar data set, but linear interpolation (LI) is the simplest approach.

To prevent anode movement under the stress of subsecond acceleration, new X-ray tubes have the anode mounted on a shaft that extends along the tube.

What allows the X-ray tube to continuously rotate so that a volume of the patient can be acquired?

What term is used to describe the separating of the direct and complementary data trails and also results in efficient z-sampling?

The overall goal of single-slice spiral/helical volume CT is to increase the volume coverage speed compared with that of the conventional CT scanner.

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

Volume CT can also be referred to as:

Computed Tomography: an Overview

Digital Image Processing

Physical Principles of Computed Tomography

Data Acquisition Concepts

Image Reconstruction

Iterative Reconstruction Basics

Basic Instrumentation

Image Postprocessing and Visualization Tools

Image Quality

Radiation Dose in Computed Tomography

Other Technical Applications of Computed Tomography Imaging: Basic Principles

Three-Dimensional Computed Tomography: Basic Concepts

Positron Emission Tomographyct Petct and Single-Photon Emission Computed Tomographyct Spectct Hybrid Scanners

Computed Tomography of the Head, Cerebral Vessels, Neck, and Spine

Computed Tomography of the Body

Pediatric Computed Tomography

Quality Control for Computed Tomography Scanners

Filters

The photodiodes convert _ into .