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Health Careers Education
Film-Screen Image Acquisition and Processing
Content is designed to establish a knowledge base in factors that govern and influence producing and recording radiologic images. Film and electronic imaging with related accessories are emphasized. Class demonstrations/labs are used to demonstrate theory application.
Lara Skaggs
-Discuss practical considerations in setting standards for acceptable image quality.
-Assess radiographic density/brightness on radiographic images.
-Distinguish between acceptable and unacceptable image densities/brightness.
-Analyze the relationships of factors that control and affect image density/brightness.
-Critique the radiographic contrast within various radiographic images.
-Differentiate between subject contrast and image receptor contrast.
-Distinguish between acceptable and unacceptable contrast scales.
-Compare long-scale/high bit depth and short-scale/low bit depth contrast images.
-Analyze the relationship of factors that control and affect radiographic contrast.
-Critique recorded detail on various radiographic images.
-Differentiate between umbra and coal spot blur.
-Define edge sharpness and edge conspicuity.
-Analyze the relationships of factors affecting recorded detail.
-Define distortion and differentiate between size and shape distortion.
-Perform calculations to determine image magnification and percent magnification.
-Differentiate between magnification as distortion and macro-radiography.
-Summarize the relationship of factors affecting distortion.
-Formulate a plan of action to decrease image distortion.
-Summarize the relationship of factors affecting exposure latitude.
-Explain the rationale for using beam-limiting devices.
-Describe the operation and applications for different types of beam-limiting devices.
-Evaluate beam-limiting devices for alignment and tolerance.
-Select the most appropriate beam-limiting device to be used for a given clinical situation.
-Explain the impact beam filtration has on x-ray beam intensity, beam quality, and resultant patient exposure.
-Describe the change in the half value layer (HVL) when filtration is added or removed in the beam.
-Summarize the relationship of factors affecting scattered and secondary radiation.
-Evaluate the effects of scattered radiation on the image.
-Compare grid types.
-Articulate the advantages and disadvantages of grid use.
-Describe grid maintenance.
-Select the most appropriate grid for a given clinical situation.
-Interpret grid efficiency in terms of grid ratio and frequency.
-Define grid cutoff.
-Summarize the factors that influence grid cutoff.
-Evaluate grid artifacts.
-Formulate a set of rules for grid use to prevent grid cutoff and artifacts.
-Explain the use of standardized radiographic technique charts.
-Explain exposure factor considerations involved in selecting techniques.
-Compare fixed kilovolt peak (kVp) and variable kVp.
-Formulate a technique chart using either a fixed kVp or a variable kVp system.
-Apply mAs reciprocity to clinical simulations.
-Describe the effects of storage on image quality.
-Discuss safelight illumination appropriate for specific image receptor systems.
-Apply conversion factors for changes in the following areas: distance, grid, image receptors, mAs reciprocity, and 15 percent rule.
-Discuss darkroom-related OSHA standards for health and safety.
-Discuss the possible causes and health implications of "darkroom chemical sensitivity."
-Describe the function of each component of radiographic film.
-Explain latent image formation for film and filmless systems.
-Describe features of the characteristic curve and explain its purpose.
-Compare exposure vs. response curves for screen film and digital detectors.
-Select the most appropriate image receptor to be used for given clinical situations.
-Describe various types of image receptor holders.
-Describe the function of each component of an intensifying screen.
-Select the most appropriate intensifying screen for given clinical situations and their applications.
-Identify procedures that ensure a long screen life devoid of artifacts and distortion.
-Employ a quality control program for intensifying screens.
-Differentiate between traditional intensifying screens and photostimulable phosphors.
-Analyze the effects of processing on image quality.
-Identify key components of an automatic film processor.
-Demonstrate how various film sizes are fed into the film processor.
-Analyze the steps of the processing cycle by providing the specific action and duration of time for each step.
-Identify the purpose of a daily quality control program for processors.
-Identify types of image artifacts and analyze them to determine the cause.
-Identify common silver recovery methods associated with film-based imaging systems.

Registered Radiological Technologist -

ARRT Radiography Core Curriculum

Bushong, Stewart C.. Radiologic
Science for Technologists. 0-323-02555-2. Philadelphia: Elsevier Publishing,

Bushong, Stewart C.. Radiologic
Science for Technologists, Workbook.

0-323-02554-4. Philadelphia: Elsevier
Publishing, 2004.

Principles of Radiographic Imaging 4th Ed,
by R. Carlton & A. Adler

Registered Radiological Technologist - ARRT

Career Cluster Resources for Health Sciences

Career Majors That Sequence This Course
Career Cluster Pathway Career Major
Health Science Diagnostic Services Radiologic Technologist