Question 1

Which of the following is the most sensitive of all X-ray techniques for measurement of bone mineral density?

Accepted Answer

A)  Bone densitometry 
B)  Dual X-ray absorptiometry 
C)  QCT 
D)  Trabecular magnetic resonance imaging (MRI) 
A)  Bone densitometry 
B)  Dual X-ray absorptiometry 
C)  QCT 
D)  Trabecular magnetic resonance imaging (MRI)

Question 2

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

-Medical image fusion

Accepted Answer

A) Used in radiation oncology departments 
B) Used to measure bone mineral density 
C) Imaging of vascular structures with the use of IV contrast 
D) Real-time CT 
E) Used to image critically ill patients
F)Used to image asymptomatic patients
G)Eliminates interference of overlapping structures to better define lesions
H)Combines images to enhance medical management of radiation therapy patients 
A) Used in radiation oncology departments 
B) Used to measure bone mineral density 
C) Imaging of vascular structures with the use of IV contrast 
D) Real-time CT 
E) Used to image critically ill patients
F)Used to image asymptomatic patients
G)Eliminates interference of overlapping structures to better define lesions
H)Combines images to enhance medical management of radiation therapy patients

Question 3

The goal of radiation therapy is to kill tumor cells without harming surrounding healthy tissue.

Accepted Answer

A) True 
 B)False

Question 4

Image quality parameters in CT fluoroscopy include all of the following except:

Accepted Answer

A)  artifacts. 
B)  contrast resolution. 
C)  density resolution. 
D)  spatial resolution. 
A)  artifacts. 
B)  contrast resolution. 
C)  density resolution. 
D)  spatial resolution.

Question 5

Which of the following visualization tools reconstructs faster than any other three-dimensional (3D) technique?

Accepted Answer

A)  Interactive cine 
B)  Multiplanar reconstruction 
C)  Shaded surface display (SS
D)  
D)  Volume rendering 
A)  Interactive cine 
B)  Multiplanar reconstruction 
C)  Shaded surface display (SS
D)  
D)  Volume rendering

Question 6

During a CT fluoroscopy procedure, a technologist may stand on the back side of the CT gantry to avoid scatter radiation.

Accepted Answer

A) True 
 B)False

Question 7

Maximum intensity projection can be used to separate all of the following except:

Accepted Answer

A)  cerebral vascular accidents. 
B)  intravascular thrombus. 
C)  lumen thrombus. 
D)  vascular calcifications. 
A)  cerebral vascular accidents. 
B)  intravascular thrombus. 
C)  lumen thrombus. 
D)  vascular calcifications.

Question 8

Which volume-rendering parameter refers to the degree that structures close to the user obscure structures that are further away?

Accepted Answer

A)  Accuracy 
B)  Brightness 
C)  Opacity 
D)  Windowing 
A)  Accuracy 
B)  Brightness 
C)  Opacity 
D)  Windowing

Question 9

The maximum fluoroscopy time for continuous imaging is:

Accepted Answer

A)  50 seconds. 
B)  100 seconds. 
C)  150 seconds. 
D)  200 seconds. 
A)  50 seconds. 
B)  100 seconds. 
C)  150 seconds. 
D)  200 seconds.

Question 10

The CT simulator features all of the following notable components except:

Accepted Answer

A)  flat table top with immobilization devices. 
B)  large gantry aperture. 
C)  smaller detector array. 
D)  registration device. 
A)  flat table top with immobilization devices. 
B)  large gantry aperture. 
C)  smaller detector array. 
D)  registration device.

Question 11

The selection of peak kilovoltage (kVp) and milliamperage used in computed tomographic angiography examinations is usually determined by each of the following except:

Accepted Answer

A)  patient body habitus. 
B)  abnormalities of the area being imaged. 
C)  level of noise in the images. 
D)  patient size. 
A)  patient body habitus. 
B)  abnormalities of the area being imaged. 
C)  level of noise in the images. 
D)  patient size.

Question 12

The size of the needle and site of injection are not important during a computed tomographic angiography examination.

Accepted Answer

A) True 
 B)False

Question 13

Each of the following are dedicated cardiac CT scanners except:

Accepted Answer

A)  dual-source. 
B)  dynamic volume. 
C)  dual-slice. 
D)  AquilionONE. 
A)  dual-source. 
B)  dynamic volume. 
C)  dual-slice. 
D)  AquilionONE.

Question 14

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

-QCT

Accepted Answer

A) Used in radiation oncology departments 
B) Used to measure bone mineral density 
C) Imaging of vascular structures with the use of IV contrast 
D) Real-time CT 
E) Used to image critically ill patients
F)Used to image asymptomatic patients
G)Eliminates interference of overlapping structures to better define lesions
H)Combines images to enhance medical management of radiation therapy patients 
A) Used in radiation oncology departments 
B) Used to measure bone mineral density 
C) Imaging of vascular structures with the use of IV contrast 
D) Real-time CT 
E) Used to image critically ill patients
F)Used to image asymptomatic patients
G)Eliminates interference of overlapping structures to better define lesions
H)Combines images to enhance medical management of radiation therapy patients

Which of the following is the most sensitive of all X-ray techniques for measurement of bone mineral density?

Please match the following CT applications. All answer selections will be used just once. -Medical image fusion

The goal of radiation therapy is to kill tumor cells without harming surrounding healthy tissue.

Image quality parameters in CT fluoroscopy include all of the following except:

Which of the following visualization tools reconstructs faster than any other three-dimensional (3D) technique?

During a CT fluoroscopy procedure, a technologist may stand on the back side of the CT gantry to avoid scatter radiation.

Maximum intensity projection can be used to separate all of the following except:

Which volume-rendering parameter refers to the degree that structures close to the user obscure structures that are further away?

The maximum fluoroscopy time for continuous imaging is:

The CT simulator features all of the following notable components except:

The selection of peak kilovoltage (kVp) and milliamperage used in computed tomographic angiography examinations is usually determined by each of the following except:

The size of the needle and site of injection are not important during a computed tomographic angiography examination.

Each of the following are dedicated cardiac CT scanners except:

Please match the following CT applications. All answer selections will be used just once. -QCT

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

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 12: Other Technical Applications of Computed Tomography Imaging: Basic Principles

Which of the following is the most sensitive of all X-ray techniques for measurement of bone mineral density?

Please match the following CT applications. All answer selections will be used just once. -Medical image fusion

The goal of radiation therapy is to kill tumor cells without harming surrounding healthy tissue.

Image quality parameters in CT fluoroscopy include all of the following except:

Which of the following visualization tools reconstructs faster than any other three-dimensional (3D) technique?

During a CT fluoroscopy procedure, a technologist may stand on the back side of the CT gantry to avoid scatter radiation.

Maximum intensity projection can be used to separate all of the following except:

Which volume-rendering parameter refers to the degree that structures close to the user obscure structures that are further away?

The maximum fluoroscopy time for continuous imaging is:

The CT simulator features all of the following notable components except:

The selection of peak kilovoltage (kVp) and milliamperage used in computed tomographic angiography examinations is usually determined by each of the following except:

The size of the needle and site of injection are not important during a computed tomographic angiography examination.

Each of the following are dedicated cardiac CT scanners except:

Please match the following CT applications. All answer selections will be used just once. -QCT

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

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