Question 1

CT has been applied to the study of internal log defects and Egyptian mummies.

Accepted Answer

A) True 
 B)False

Question 2

Gas-ionization detectors (xenon gas) are used in the majority of commercial CT scanners today.

Accepted Answer

A) True 
 B)False

Question 3

DSCT scanners feature two X-ray tubes and two detector arrays and were designed with the intention of imaging active bleeding in trauma patients in a short period of time.

Accepted Answer

A) True 
 B)False

Question 4

Which form of imaging primarily uses DSCT scanners?

Accepted Answer

A)  Virtual colonoscopy 
B)  Cardiac imaging 
C)  Biopsy procedures 
D)  Pulmonary imaging 
A)  Virtual colonoscopy 
B)  Cardiac imaging 
C)  Biopsy procedures 
D)  Pulmonary imaging

Question 5

Please match the following CT concepts. All answer selections will be used just once.

-3D technique

Accepted Answer

A) Determine tissue types in CT slices 
B) Algorithms 
C) CT dose descriptor 
D) Converting electrical signals into digital data 
E) Surface-based rendering 
A) Determine tissue types in CT slices 
B) Algorithms 
C) CT dose descriptor 
D) Converting electrical signals into digital data 
E) Surface-based rendering

Question 6

Which company pioneered the development of the first clinically useful CT scanner?

Accepted Answer

A)  General Electric 
B)  Siemens 
C)  Elscint 
D)  EMI 
A)  General Electric 
B)  Siemens 
C)  Elscint 
D)  EMI

Question 7

Please match the following CT concepts. All answer selections will be used just once.

-Analog to digital converter

Accepted Answer

A) Determine tissue types in CT slices 
B) Algorithms 
C) CT dose descriptor 
D) Converting electrical signals into digital data 
E) Surface-based rendering 
A) Determine tissue types in CT slices 
B) Algorithms 
C) CT dose descriptor 
D) Converting electrical signals into digital data 
E) Surface-based rendering

Question 8

All these elements can be used during data acquisition to reduce patient dose except:

Accepted Answer

A)  combined applications. 
B)  ultrafast ceramic (UF
C)  detectors. 
C)  decreased pitch. 
D)  online dose modulation. 
A)  combined applications. 
B)  ultrafast ceramic (UF
C)  detectors. 
C)  decreased pitch. 
D)  online dose modulation.

Question 9

Who developed the first whole-body CT scanner?

Accepted Answer

A)  Ledley 
B)  Kuhl 
C)  Cormack and Hounsfield 
D)  Oldendorf 
A)  Ledley 
B)  Kuhl 
C)  Cormack and Hounsfield 
D)  Oldendorf

Question 10

The original term used to describe imaging of a specific layer or section of the body was transverse axial tomography.

Accepted Answer

A) True 
 B)False

Question 11

Which type of high-speed CT scanner was first introduced to image the cardiovascular system without artifacts caused by motion of the heart?

Accepted Answer

A)  Single-slice CT scanner 
B)  Electron-beam CT (EBCT) scanner 
C)  Dual-source CT (DSCT) scanner 
D)  EMI Mark I CT scanner 
A)  Single-slice CT scanner 
B)  Electron-beam CT (EBCT) scanner 
C)  Dual-source CT (DSCT) scanner 
D)  EMI Mark I CT scanner

Question 12

QC tests in CT meet only quantitative criteria to indicate the scanner is in working condition.

Accepted Answer

A) True 
 B)False

Question 13

When a large set of transmission measurements is collected from the patient at different locations and is used to build up an image of internal anatomy, it is referred to as:

Accepted Answer

A)  tomography. 
B)  image reconstruction from projections. 
C)  pattern recognition. 
D)  digital image processing. 
A)  tomography. 
B)  image reconstruction from projections. 
C)  pattern recognition. 
D)  digital image processing.

Question 14

Please match the following CT concepts. All answer selections will be used just once.

-MSAD

Accepted Answer

A) Determine tissue types in CT slices 
B) Algorithms 
C) CT dose descriptor 
D) Converting electrical signals into digital data 
E) Surface-based rendering 
A) Determine tissue types in CT slices 
B) Algorithms 
C) CT dose descriptor 
D) Converting electrical signals into digital data 
E) Surface-based rendering

Question 15

The mathematical techniques used by the computer to reconstruct the CT image are known as:

Accepted Answer

A)  computer programs. 
B)  image reconstruction algorithms. 
C)  manipulation of images. 
D)  pattern recognition. 
A)  computer programs. 
B)  image reconstruction algorithms. 
C)  manipulation of images. 
D)  pattern recognition.

Question 16

Which of the following is best used to describe patient dose in CT?

Accepted Answer

A)  CT dose index (CTDI) and multiple-scan average dose (MSA
D)  
B)  Isometric curves 
C)  Exposure doses 
D)  Collective doses 
A)  CT dose index (CTDI) and multiple-scan average dose (MSA
D)  
B)  Isometric curves 
C)  Exposure doses 
D)  Collective doses

Question 17

Please match the following CT concepts. All answer selections will be used just once.

-Image reconstruction

Accepted Answer

A) Determine tissue types in CT slices 
B) Algorithms 
C) CT dose descriptor 
D) Converting electrical signals into digital data 
E) Surface-based rendering 
A) Determine tissue types in CT slices 
B) Algorithms 
C) CT dose descriptor 
D) Converting electrical signals into digital data 
E) Surface-based rendering

Question 18

Which of the following refers to modifying CT data to make the images more useful to the observer?

Accepted Answer

A)  Image manipulation 
B)  Image reconstruction 
C)  Data collection 
D)  Pattern recognition 
A)  Image manipulation 
B)  Image reconstruction 
C)  Data collection 
D)  Pattern recognition

Question 19

In the original experiments in CT, the apparatus took 9 hours to scan the object.

Accepted Answer

A) True 
 B)False

CT has been applied to the study of internal log defects and Egyptian mummies.

Gas-ionization detectors (xenon gas) are used in the majority of commercial CT scanners today.

DSCT scanners feature two X-ray tubes and two detector arrays and were designed with the intention of imaging active bleeding in trauma patients in a short period of time.

Which form of imaging primarily uses DSCT scanners?

Please match the following CT concepts. All answer selections will be used just once. -3D technique

Which company pioneered the development of the first clinically useful CT scanner?

Please match the following CT concepts. All answer selections will be used just once. -Analog to digital converter

All these elements can be used during data acquisition to reduce patient dose except:

Who developed the first whole-body CT scanner?

The original term used to describe imaging of a specific layer or section of the body was transverse axial tomography.

Which type of high-speed CT scanner was first introduced to image the cardiovascular system without artifacts caused by motion of the heart?

QC tests in CT meet only quantitative criteria to indicate the scanner is in working condition.

When a large set of transmission measurements is collected from the patient at different locations and is used to build up an image of internal anatomy, it is referred to as:

Please match the following CT concepts. All answer selections will be used just once. -MSAD

The mathematical techniques used by the computer to reconstruct the CT image are known as:

Which of the following is best used to describe patient dose in CT?

Please match the following CT concepts. All answer selections will be used just once. -Image reconstruction

Which of the following refers to modifying CT data to make the images more useful to the observer?

In the original experiments in CT, the apparatus took 9 hours to scan the object.

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

Multislice Computed Tomography: Physical Principles and Instrumentation

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 1: Computed Tomography: an Overview

CT has been applied to the study of internal log defects and Egyptian mummies.

Gas-ionization detectors (xenon gas) are used in the majority of commercial CT scanners today.

DSCT scanners feature two X-ray tubes and two detector arrays and were designed with the intention of imaging active bleeding in trauma patients in a short period of time.

Which form of imaging primarily uses DSCT scanners?

Please match the following CT concepts. All answer selections will be used just once. -3D technique

Which company pioneered the development of the first clinically useful CT scanner?

Please match the following CT concepts. All answer selections will be used just once. -Analog to digital converter

All these elements can be used during data acquisition to reduce patient dose except:

Who developed the first whole-body CT scanner?

The original term used to describe imaging of a specific layer or section of the body was transverse axial tomography.

Which type of high-speed CT scanner was first introduced to image the cardiovascular system without artifacts caused by motion of the heart?

QC tests in CT meet only quantitative criteria to indicate the scanner is in working condition.

When a large set of transmission measurements is collected from the patient at different locations and is used to build up an image of internal anatomy, it is referred to as:

Please match the following CT concepts. All answer selections will be used just once. -MSAD

The mathematical techniques used by the computer to reconstruct the CT image are known as:

Which of the following is best used to describe patient dose in CT?

Please match the following CT concepts. All answer selections will be used just once. -Image reconstruction

Which of the following refers to modifying CT data to make the images more useful to the observer?

In the original experiments in CT, the apparatus took 9 hours to scan the object.

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

Multislice Computed Tomography: Physical Principles and Instrumentation

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