Question 1

Which stage of volume rendering assigns the different brightness levels or color to a voxel?

Accepted Answer

A)  Modeling 
B)  Preprocessing 
C)  Surfacing 
D)  Rendering 
A)  Modeling 
B)  Preprocessing 
C)  Surfacing 
D)  Rendering

Question 2

Limitations of maximum intensity projections include each of the following except:

Accepted Answer

A)  artifacts from pulsating vessels. 
B)  inability to show superimposed structures. 
C)  images are three-dimensionally ambiguous unless depth cues are provided. 
D)  uses large amounts of data in the 3D space. 
A)  artifacts from pulsating vessels. 
B)  inability to show superimposed structures. 
C)  images are three-dimensionally ambiguous unless depth cues are provided. 
D)  uses large amounts of data in the 3D space.

Question 3

Virtual endoscopy allows the viewer to "fly through" each of these structures except:

Accepted Answer

A)  colon. 
B)  tracheobronchial tree. 
C)  vessels. 
D)  cortical bone. 
A)  colon. 
B)  tracheobronchial tree. 
C)  vessels. 
D)  cortical bone.

Question 4

Which imaging technique uses virtual reality (VR) concepts in the creation of inner views of tubular structures?

Accepted Answer

A)  Virtual cardiology 
B)  Virtual endoscopy 
C)  Virtual gastroenterology 
D)  Virtual bronchoscopy 
A)  Virtual cardiology 
B)  Virtual endoscopy 
C)  Virtual gastroenterology 
D)  Virtual bronchoscopy

Question 5

Virtual endoscopy includes all of the following applications except:

Accepted Answer

A)  virtual arthroscopy. 
B)  virtual colonoscopy. 
C)  virtual cholangiopancreatoscopy. 
D)  virtual labyrinthoscopy. 
A)  virtual arthroscopy. 
B)  virtual colonoscopy. 
C)  virtual cholangiopancreatoscopy. 
D)  virtual labyrinthoscopy.

Question 6

The zero point is also called the:

Accepted Answer

A)  Cartesian point. 
B)  height of the axes. 
C)  point of intersection. 
D)  width of the axes. 
A)  Cartesian point. 
B)  height of the axes. 
C)  point of intersection. 
D)  width of the axes.

Question 7

An internal representation of surfaces that will be visible in the displayed image and then "lights" according to a standard protocol describes:

Accepted Answer

A)  multiplanar rendering. 
B)  SR. 
C)  volume rendering. 
D)  voxel rendering. 
A)  multiplanar rendering. 
B)  SR. 
C)  volume rendering. 
D)  voxel rendering.

Question 8

Which type of 3D imaging approach produces a true 3D visualization?

Accepted Answer

A)  Modeling imaging 
B)  Projective imaging 
C)  Slice imaging 
D)  Volume imaging 
A)  Modeling imaging 
B)  Projective imaging 
C)  Slice imaging 
D)  Volume imaging

Question 9

Proper patient preparation is not important for the success of virtual colonoscopy.

Accepted Answer

A) True 
 B)False

Question 10

Voxel-based processing makes determinations about each voxel and decides to what degree each should contribute to the final 3D image.

Accepted Answer

A) True 
 B)False

Question 11

All of the following are major elements of a typical 3D imaging system except:

Accepted Answer

A)  detector array. 
B)  output. 
C)  the user. 
D)  workstations. 
A)  detector array. 
B)  output. 
C)  the user. 
D)  workstations.

Question 12

__________ information is used to assess the three elements of technique of the 3D imaging procedure.

Accepted Answer

A)  Reconstructed 
B)  Qualitative 
C)  Quantitative 
D)  Virtual 
A)  Reconstructed 
B)  Qualitative 
C)  Quantitative 
D)  Virtual

Question 13

Which of the following uses voxel information to transform the images into a collection of objects with subsequent processing concentrating on the display of the objects?

Accepted Answer

A)  Model-based processing 
B)  Object-based processing 
C)  Surface-based processing 
D)  Voxel-based processing 
A)  Model-based processing 
B)  Object-based processing 
C)  Surface-based processing 
D)  Voxel-based processing

Question 14

In the scene (xyz) coordinate system, the axes are positioned at __________ angles.

Accepted Answer

A)  30-degree 
B)  45-degree 
C)  60-degree 
D)  90-degree 
A)  30-degree 
B)  45-degree 
C)  60-degree 
D)  90-degree

Question 15

Studies have shown that virtual endoscopies would be more expensive than real endoscopies.

Accepted Answer

A) True 
 B)False

Question 16

Which modeling technique transforms a 2D profile into a 3D object?

Accepted Answer

A)  Extrusion 
B)  Image mapping 
C)  Procedural texturing 
D)  Surface mapping 
A)  Extrusion 
B)  Image mapping 
C)  Procedural texturing 
D)  Surface mapping

Question 17

The development of computed tomographic angiography and 3D imaging has not proved effective in the evaluation of cerebral aneurysms and arteriovenous malformations.

Accepted Answer

A) True 
 B)False

Question 18

Surface rendered images are superior in all parameters like edge delineation, depiction of vessel lumen, and demonstration of overlapping structures.

Accepted Answer

A) True 
 B)False

Question 19

VR is a branch of computer science that immerses users in a computer-generated environment and allows them to interact with 3D scenes.

Accepted Answer

A) True 
 B)False

Question 20

All of the following are shading algorithms except:

Accepted Answer

A)  flat shading. 
B)  Gouraud shading. 
C)  Phong shading. 
D)  polygonal shading. 
A)  flat shading. 
B)  Gouraud shading. 
C)  Phong shading. 
D)  polygonal shading.

Which stage of volume rendering assigns the different brightness levels or color to a voxel?

Limitations of maximum intensity projections include each of the following except:

Virtual endoscopy allows the viewer to "fly through" each of these structures except:

Which imaging technique uses virtual reality (VR) concepts in the creation of inner views of tubular structures?

Virtual endoscopy includes all of the following applications except:

The zero point is also called the:

An internal representation of surfaces that will be visible in the displayed image and then "lights" according to a standard protocol describes:

Which type of 3D imaging approach produces a true 3D visualization?

Proper patient preparation is not important for the success of virtual colonoscopy.

Voxel-based processing makes determinations about each voxel and decides to what degree each should contribute to the final 3D image.

All of the following are major elements of a typical 3D imaging system except:

__________ information is used to assess the three elements of technique of the 3D imaging procedure.

Which of the following uses voxel information to transform the images into a collection of objects with subsequent processing concentrating on the display of the objects?

In the scene (xyz) coordinate system, the axes are positioned at __________ angles.

Studies have shown that virtual endoscopies would be more expensive than real endoscopies.

Which modeling technique transforms a 2D profile into a 3D object?

The development of computed tomographic angiography and 3D imaging has not proved effective in the evaluation of cerebral aneurysms and arteriovenous malformations.

Surface rendered images are superior in all parameters like edge delineation, depiction of vessel lumen, and demonstration of overlapping structures.

VR is a branch of computer science that immerses users in a computer-generated environment and allows them to interact with 3D scenes.

All of the following are shading algorithms except:

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

Multislice Computed Tomography: Physical Principles and Instrumentation

Other Technical Applications of Computed Tomography Imaging: Basic Principles

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 13: Three-Dimensional Computed Tomography: Basic Concepts

Which stage of volume rendering assigns the different brightness levels or color to a voxel?

Limitations of maximum intensity projections include each of the following except:

Virtual endoscopy allows the viewer to "fly through" each of these structures except:

Which imaging technique uses virtual reality (VR) concepts in the creation of inner views of tubular structures?

Virtual endoscopy includes all of the following applications except:

The zero point is also called the:

An internal representation of surfaces that will be visible in the displayed image and then "lights" according to a standard protocol describes:

Which type of 3D imaging approach produces a true 3D visualization?

Proper patient preparation is not important for the success of virtual colonoscopy.

Voxel-based processing makes determinations about each voxel and decides to what degree each should contribute to the final 3D image.

All of the following are major elements of a typical 3D imaging system except:

__________ information is used to assess the three elements of technique of the 3D imaging procedure.

Which of the following uses voxel information to transform the images into a collection of objects with subsequent processing concentrating on the display of the objects?

In the scene (xyz) coordinate system, the axes are positioned at __________ angles.

Studies have shown that virtual endoscopies would be more expensive than real endoscopies.

Which modeling technique transforms a 2D profile into a 3D object?

The development of computed tomographic angiography and 3D imaging has not proved effective in the evaluation of cerebral aneurysms and arteriovenous malformations.

Surface rendered images are superior in all parameters like edge delineation, depiction of vessel lumen, and demonstration of overlapping structures.

VR is a branch of computer science that immerses users in a computer-generated environment and allows them to interact with 3D scenes.

All of the following are shading algorithms except:

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

Multislice Computed Tomography: Physical Principles and Instrumentation

Other Technical Applications of Computed Tomography Imaging: Basic Principles

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