Question 1

Interactions at the anode that produce x-rays may be described as which of the following?

Accepted Answer

A)  Bremsstrahlung radiation 
B)  Characteristic radiation 
C)  Compton scattering 
D)  All of the above 
E)  Both a and b 
A)  Bremsstrahlung radiation 
B)  Characteristic radiation 
C)  Compton scattering 
D)  All of the above 
E)  Both a and b E

Question 2

Additive pathologies affect tissue density such that the affected anatomy may appear _________ on the radiograph.

Accepted Answer

A)  lighter than normal 
B)  darker than normal 
C)  unchanged 
D)  hypoechoic 
A)  lighter than normal 
B)  darker than normal 
C)  unchanged 
D)  hypoechoic A

Question 3

Therapeutically, x-rays in the 40 to 300 kVp range are used for which of the following?

Accepted Answer

A)  Treatment of skin cancers and other superficial tumors 
B)  The planning of a patient's treatment on the simulator 
C)  Both of the above 
D)  None of the above 
A)  Treatment of skin cancers and other superficial tumors 
B)  The planning of a patient's treatment on the simulator 
C)  Both of the above 
D)  None of the above C

Question 4

Which of the following may be used to reduce the amount of scatter radiation that reaches the image receptor?

Accepted Answer

A)  Collimation 
B)  Grids 
C)  Filtration 
D)  All of the above 
E)  Both a and b 
A)  Collimation 
B)  Grids 
C)  Filtration 
D)  All of the above 
E)  Both a and b

Question 5

Which of the following describes the predominant x-ray interaction in the diagnostic range?

Accepted Answer

A)  Compton scatter 
B)  Photoelectric absorption 
C)  Coherent scatter 
D)  None of the above 
A)  Compton scatter 
B)  Photoelectric absorption 
C)  Coherent scatter 
D)  None of the above

Question 6

Which of the following modalities does not use radiation in image production and acquisition?

Accepted Answer

A)  CT 
B)  Nuclear medicine 
C)  MRI 
D)  Mammography 
A)  CT 
B)  Nuclear medicine 
C)  MRI 
D)  Mammography

Question 7

Who is the discovery of x-rays in 1895 credited to?

Accepted Answer

A)  Wilhelm Conrad Roentgen 
B)  Theodor Boveri 
C)  Marie Curie 
D)  Sir Godfrey Hounsfield 
A)  Wilhelm Conrad Roentgen 
B)  Theodor Boveri 
C)  Marie Curie 
D)  Sir Godfrey Hounsfield

Question 8

Beam quality is affected by changes in which of the following?

Accepted Answer

A)  kVp 
B)  Potential difference in the x-ray tube 
C)  Voltage 
D)  All of the above 
A)  kVp 
B)  Potential difference in the x-ray tube 
C)  Voltage 
D)  All of the above

Question 9

Which technical factor has the most effect on radiographic density?

Accepted Answer

A)  mAs 
B)  kVp 
C)  Distance 
D)  All of the above 
A)  mAs 
B)  kVp 
C)  Distance 
D)  All of the above

Question 10

A quality radiograph taken at 100 cm using 20 mAs could be replicated at 50 cm using which of the following?

Accepted Answer

A)  15 mAs 
B)  10 mAs 
C)  7 mAs 
D)  5 mAs 
A)  15 mAs 
B)  10 mAs 
C)  7 mAs 
D)  5 mAs

Question 11

Components of a modern x-ray tube include which of the following?

Accepted Answer

A)  Cathode filament 
B)  Rotating anode 
C)  Glass envelope 
D)  All of the above 
A)  Cathode filament 
B)  Rotating anode 
C)  Glass envelope 
D)  All of the above

Question 12

Unlike digital radiography, conventional imaging media includes which of the following?

Accepted Answer

A)  Film 
B)  Screens 
C)  Cassettes 
D)  All of the above 
A)  Film 
B)  Screens 
C)  Cassettes 
D)  All of the above

Question 13

Image fusion as used in the production of positron emission tomography (PET)images may fuse together the PET images with the images of what other imaging modality?

Accepted Answer

A)  Ultrasound 
B)  X-ray 
C)  Computed tomography (CT) 
D)  All of the above 
A)  Ultrasound 
B)  X-ray 
C)  Computed tomography (CT) 
D)  All of the above

Question 14

The emission of liberated electrons is the primary purpose of which of the following?

Accepted Answer

A)  Anode 
B)  Cathode 
C)  Target 
D)  Generator 
A)  Anode 
B)  Cathode 
C)  Target 
D)  Generator

Question 15

Because of the mobility of the prostate, which imaging modality is often used at the time of treatment to identify the position of the prostate?

Accepted Answer

A)  Fluoroscopy 
B)  Ultrasound 
C)  MRI 
D)  Nuclear medicine 
A)  Fluoroscopy 
B)  Ultrasound 
C)  MRI 
D)  Nuclear medicine

Question 16

Three-dimensional imaging using voxels is present in ____________.

Accepted Answer

A)  MRI 
B)  CT 
C)  both of the above 
D)  neither of the above 
A)  MRI 
B)  CT 
C)  both of the above 
D)  neither of the above

Question 17

Destructive pathologies include which of the following?

Accepted Answer

A)  Pleural effusion 
B)  Atelectasis 
C)  Edema 
D)  Necrosis 
A)  Pleural effusion 
B)  Atelectasis 
C)  Edema 
D)  Necrosis

Question 18

The quantity of photons in an x-ray beam is directly proportional to _____________.

Accepted Answer

A)  kVp 
B)  anode temperature rating 
C)  tube current 
D)  filtration 
A)  kVp 
B)  anode temperature rating 
C)  tube current 
D)  filtration

Question 19

Attenuation is the process by which an x-ray beam ___________________.

Accepted Answer

A)  is focused 
B)  is reduced in intensity 
C)  diverges 
D)  exposes a film 
A)  is focused 
B)  is reduced in intensity 
C)  diverges 
D)  exposes a film

Question 20

Which of the following is an advantage of the photostimulatable phosphor plate over conventional x-ray image production?

Accepted Answer

A)  Less radiating per exposure 
B)  Postprocessing manipulation of density and contrast 
C)  No need for radiographic grids 
D)  Higher spatial resolution 
A)  Less radiating per exposure 
B)  Postprocessing manipulation of density and contrast 
C)  No need for radiographic grids 
D)  Higher spatial resolution

Exam 6: Medical Imaging

Interactions at the anode that produce x-rays may be described as which of the following?

Additive pathologies affect tissue density such that the affected anatomy may appear _________ on the radiograph.

Therapeutically, x-rays in the 40 to 300 kVp range are used for which of the following?

Which of the following may be used to reduce the amount of scatter radiation that reaches the image receptor?

Which of the following describes the predominant x-ray interaction in the diagnostic range?

Which of the following modalities does not use radiation in image production and acquisition?

Who is the discovery of x-rays in 1895 credited to?

Beam quality is affected by changes in which of the following?

Which technical factor has the most effect on radiographic density?

A quality radiograph taken at 100 cm using 20 mAs could be replicated at 50 cm using which of the following?

Components of a modern x-ray tube include which of the following?

Unlike digital radiography, conventional imaging media includes which of the following?

Image fusion as used in the production of positron emission tomography (PET)images may fuse together the PET images with the images of what other imaging modality?

The emission of liberated electrons is the primary purpose of which of the following?

Because of the mobility of the prostate, which imaging modality is often used at the time of treatment to identify the position of the prostate?

Three-dimensional imaging using voxels is present in ____________.

Destructive pathologies include which of the following?

The quantity of photons in an x-ray beam is directly proportional to _____________.

Attenuation is the process by which an x-ray beam ___________________.

Which of the following is an advantage of the photostimulatable phosphor plate over conventional x-ray image production?

Cancer: An Overview

The Ethics and Legal Considerations of Cancer Management

Principles of Pathology

Overview of Radiobiology

Detection and Diagnosis

Treatment Delivery Equipment

Treatment Procedures

Infection Control in Radiation Oncology Facilities

Patient Assessment

Pharmacology and Drug Administration

Applied Mathematics Review

Introduction to Radiation Therapy Physics

Aspects of Brachytherapy

Special Procedures

Particle Therapy

Radiation Safety and Protection

Patient Safety in Radiation Oncology

Quality Improvement in Radiation Oncology

Surface and Sectional Anatomy

Simulator Design

Computed Tomography Simulation

Photon Dosimetry Concepts and Calculations

Photon Dose Distributions

Electron Beams in Radiation Therapy

Electronic Charting and Image Management

Bone, Cartilage, and Soft Tissue Sarcomas

Lymphoreticular System Tumors

Endocrine System Tumors

Respiratory System Tumors

Head and Neck Cancers

Central Nervous System Tumors

Digestive System Tumors

Gynecological Tumors

Male Reproductive and Genitourinary Tumors

Breast Cancer

Pediatric Solid Tumors

Skin Cancers and Melanoma

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