Image Production and Evaluation
Pre-Test Questions
Course Introduction
Image Production and Evaluation focuses on the fundamental principles and techniques used in the creation and critical assessment of images, particularly within the context of medical imaging and photography. The course covers topics such as image acquisition, processing methods, exposure factors, quality control, and the evaluation of image quality for diagnostic and analytical purposes. Students will gain an understanding of the technical aspects of imaging systems, the influence of various parameters on image quality, and methods to optimize image production while minimizing artifacts and errors. Through practical exercises and case studies, students will develop skills to critically analyze images, apply standard evaluation criteria, and ensure accuracy and consistency in image interpretation and reporting.
Recommended Textbook
Radiographic Imaging and Exposure 3rd Edition by Terri L. Fauber
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12 Chapters
345 Verified Questions
345 Flashcards
Source URL: https://quizplus.com/study-set/1335
Page 2
Chapter 1: Radiation and Its Discovery
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20 Verified Questions
20 Flashcards
Source URL: https://quizplus.com/quiz/26639
Sample Questions
Q1) Barium platinocyanide was the:
A) type of dark paper Roentgen used to darken his laboratory.
B) material Roentgen used to produce the first radiograph of his wife's hand.
C) metal used to produce the low-vacuum tube.
D) fluorescent material that glowed when the tube was energized.
Answer: D
Q2) Chemical changes may occur as a result of exposure to ionizing radiation.
A)True
B)False
Answer: True
Q3) X-rays have which of the following properties?
A) Electrical properties
B) Magnetic properties
C) Chemical properties
D) a and b
Answer: D
Q4) X-rays carry a negative charge that causes ionization.
A)True
B)False
Answer: False
Page 3
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Chapter 2: The X-Ray Beam
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25 Verified Questions
25 Flashcards
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Sample Questions
Q1) The filtration of the x-ray beam results in:
A) increased beam quantity.
B) increased beam quality.
C) lower average energy photons.
D) b and c
Answer: B
Q2) Which of the following is not classified as inherent filtration?
A) The oil in the transformer
B) The collimator mirror
C) The glass tube envelope
D) The oil surrounding the tube
Answer: A
Q3) What is the anode target of a mammographic tube made of?
A) Molybdenum
B) Tungsten
C) Rhenium
D) Beryllium
Answer: A
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Chapter 3: Radiographic Image Formation
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26 Verified Questions
26 Flashcards
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Sample Questions
Q1) The photoelectric effect is dependent on both the energy of the x-ray photon and the composition of the anatomic tissue.
A)True
B)False
Answer: True
Q2) _____ is the loss of some of the energy from the x-ray beam as it passes through the tissue being imaged.
A) Compensating filtration
B) Attenuation
C) Photon transmission
D) Photoelectric scattering
Answer: B
Q3) The Compton interaction can occur within all diagnostic x-ray energies.
A)True
B)False
Answer: True
Q4) More than 15% of the primary x-ray beam actually reaches the image receptor.
A)True
B)False
Answer: False
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Chapter 4: Radiographic Image Quality: Photographic Properties
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35 Verified Questions
35 Flashcards
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Sample Questions
Q1) Which one of the following immobilizing devices requires an increase in the exposure technique?
A) Fiberglass cast
B) Plaster cast
C) Air splint
D) b and c
Q2) Which of the following changes will result in increased density with no change in contrast?
A) Increased SID
B) Decreased SID
C) Increased collimation
D) Decreased collimation
Q3) In order to reduce patient exposure, a _____ kVp and _____ mAs should be used when possible.
A) lower, higher
B) higher, higher
C) higher, lower
D) it makes no difference
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Chapter 5: Radiographic Image Quality: Geometric Properties
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25 Verified Questions
25 Flashcards
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Sample Questions
Q1) Shape distortion can be created by:
A) off-centering the central ray.
B) angling the central ray.
C) increasing the SID.
D) a and b only
Q2) In order to image a structure that is located anteriorly in the body, it is best radiographed to minimize magnification by doing a _____ projection.
A) posterior-anterior
B) anterior-posterior
C) lateral
D) oblique
Q3) The relationship of the focal spot size, SID, and OID specifically impacts the _____ of the image.
A) visibility of recorded detail
B) image receptor unsharpness
C) geometric unsharpness
D) distortion
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Page 7
Chapter 6: Scatter Control
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30 Flashcards
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Sample Questions
Q1) Which of the following statements is true?
A) A high ratio grid prevents the creation of scatter better than a low ratio grid.
B) A low ratio grid is more effective at removing scatter than a high ratio grid.
C) As grid ratio increases, the removal of scatter increases.
D) High ratio grids are less effective at removing scatter than low ratio grids.
Q2) A radiograph that has a fogged appearance has most likely been exposed to which of the following?
A) Scatter radiation
B) Primary radiation
C) Coherent radiation
D) Photoelectric radiation
Q3) Which grid design is manufactured to match the divergence of the x-ray beam?
A) The parallel grid
B) The crossed grid
C) The linear grid
D) The focused grid
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8
Chapter 7: Image Receptors
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Sample Questions
Q1) What is the term used to describe the color of light to which a radiographic film is sensitive?
A) Chromatic spectrometry
B) Orthochromatic sensitivity
C) Panchromatic matching
D) Spectral sensitivity
Q2) The material used as the CR photostimulable phosphor is:
A) gadolinium oxysulfide with terbium.
B) barium fluorohalide with europium.
C) lanthanum oxybromide with thulium.
D) yttrium oxysulfide with terbium.
Q3) What is the purpose of the intensifying screen?
A) To decrease the production of scatter radiation
B) To reduce the amount of scatter striking the film
C) To reduce the amount of exposure to the patient
D) b and c
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9
Chapter 8: Radiographic Film Processing
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30 Verified Questions
30 Flashcards
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Sample Questions
Q1) Which rack system guides the film from one tank into the next?
A) Guide rack
B) Crossover rack
C) Deep rack
D) Planetary rack
Q2) Bending or kinking of the film will result in a _____ artifact.
A) fog
B) scratch
C) static
D) half-moon
Q3) In the developer solution, exposed silver halide crystals are reduced to _____ silver.
A) ionic
B) liquid
C) negative
D) metallic
Q4) One and one half minutes (90 seconds) is a typical processing cycle.
A)True
B)False
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Chapter 9: Sensitometry
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Sample Questions
Q1) When evaluating characteristic curves, which of the following best describes the film with the curve furthest to the left?
A) Fastest
B) Slowest
C) One with the most latitude
D) b and c
Q2) What area of the sensitometric curve includes the maximum level of density present on the film?
A) Toe
B) Shoulder
C) Slope
D) b and c
Q3) What is the device used to measure radiographic density?
A) Sensitometer
B) Densitometer
C) Step wedge
D) a and c
Q4) The lower the speed exposure point, the faster the film speed.
A)True
B)False
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Chapter 10: Exposure Factor Selection
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Sample Questions
Q1) What is the appropriate change in kVp when using a variable kVp/fixed mAs technique chart for a 1 cm change in tissue thickness?
A) 2 kVp
B) 4 kVp
C) 6 kVp
D) 10 kVp
Q2) Technique charts are still needed when using Automatic Exposure Control (AEC).
A)True
B)False
Q3) Accurate patient measurement is most critical for the:
A) variable kVp/fixed mAs technique chart design.
B) variable kVp/variable mAs technique chart design.
C) fixed kVp/variable mAs technique chart design.
D) fixed kVp/fixed mAs technique chart design.
Q4) The technique chart will provide information as to how to recognize and compensate for additive pathology.
A)True
B)False
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Chapter 11: Automatic Exposure Control
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Sample Questions
Q1) When doing a film-screen study using AEC, what will happen to the density in the area of interest when changing from 70 kVp to 90 kVp?
A) Density will increase.
B) Density will decrease.
C) Density will not change.
Q2) Why was automatic exposure control (AEC) originally developed?
A) To decrease the need for technique charts
B) To make the technologist more of a "button pusher"
C) To reduce repeats and improve image quality
D) To increase productivity and patient dose
Q3) What does APR stand for?
A) All programming radiology
B) Anatomically programmed radiography
C) Accurately positioned radiographs
D) None of the above
Q4) When the radiographer is considering whether to repeat a film using AEC, it is important to determine the reason why the first radiograph failed.
A)True
B)False
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Chapter 12: Digital Imaging
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40 Verified Questions
40 Flashcards
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Sample Questions
Q1) The basic unit of information in a computer is a(n):
A) bit.
B) byte.
C) word.
D) algorithm.
Q2) _____ is the postprocessing technique that improves the visibility of small and high-contrast structures.
A) Contrast enhancement
B) Edge enhancement
C) Subtraction
D) Smoothing
Q3) A significant advantage of digital compared to film-screen radiography is:
A) reduced patient exposure.
B) latent image formation.
C) spatial resolution.
D) postprocessing image enhancement.
Q4) The pixel bit depth determines the amount of shades of gray the system is capable of displaying on the digital image.
A)True
B)False
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