Medical Technology Management Institute
Phone: 1-800-765-MTMI (6864)
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Improving Your Digital Radiography Skills
8 Hours ARRT Category A Credit
Andrew Woodward MA, RT(R)(QM)(CT)
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About this Seminar
This seminar; Improving Your Digital Radiography Skills
will address:
- The types of digital detectors employed for radiography and how each acquires an image.
- Characteristics of digital acquisition systems.
- Image accession, initial processing, and final processing.
- The relationship between radiographic exposure and image appearance.
- The appropriate processing steps and the errors that may occur.
- Acquisition precautions
- Myths and fallacies about digital acquisition.
- Appropriate selection of technical factors.
- Evaluation of digital images compared to screen/film images
- Using cues to adjust technical factors and establish proper technique guides
- Limiting patient exposure/dose
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Educational Objectives
At the completion of this seminar, participants will be able to:
- Describe the various types of digital detectors
- Describe the characteristics and evaluation criteria for digital radiography detectors
- Describe the characteristics of digital images
- Compare digital characteristics to screen/film characteristics
- Compare the advantages and limitations of each system
- Describe the digital image acquisition process
- Describe the basic principles of initial image processing, identifying the role of exposure field
recognition, anatomical menu selection, histogram analysis, default image processing
- Describe the histogram and the process or histogram analysis as it
relates to automatic rescaling and the determination of an exposure indicator
- Utilize the exposure indicator to evaluate exposure and adjust technical factors if necessary
- Describe image acquisition precautions necessary for digital imaging
- Discuss the impact of low intensity radiation response on image acquisition
- Avoid grid utilization errors associated with grid cut off and Moire' effect
- Discuss the role of exposure field recognition on histogram content,
histogram analysis, rescaling, and exposure indicator determination
- Employ appropriate beam/part/plate alignment to avoid histogram analysis errors
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Locations & Dates
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The Instructor
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Andrew Woodward, MA,RT(R)(QM)(CT)
Assistant Professor
Division of Radiologic Science
Department of Allied Health Sciences
UNC School of Medicine
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Seminar Credit
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This seminar provides 8 hours of Category A continuing education credit for
radiologic technologists recognized by the ARRT and various licensure states.
A certificate of attendance will be provided for each individual upon
completion of the course. All attendees must attend the entire course to
receive full credit.
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Seminar Schedule
| 8:00 am |
Registration and Coffee |
| 8:30 am |
Digital Radiography
- Analog image vs. digital image
- Digital image characteristics
- Digital receptors
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| Image Acquisition Process
- Capture
- Extraction
- ADC
- Histogram analysis
- Application of processing codes
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| 10:10 am |
Informal Discussion and Break |
| 10:20 am |
Image Acquisition - Cassette Based vs. Cassette-less
Radiographers' Role
Exposure Data Recognition
Exposure Field Recognition
- Image data extraction
- Histogram analysis
- Analog to digital conversion
- Automatic rescaling
- Final image processing
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| 12:00 noon |
Lunch - (on your own) |
| 1:00 pm |
Image Acquisition Issues
- Dynamic range vs. latitude
- Histogram analysis errors
- Exposure field recognition - histogram analysis, automatic rescaling
- Exposure index
- Low intensity radiation response
- Background
- Scatter
- Beam limiting - collimation
- Collimation "rules"
- Grid utilization
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| 2:40 pm |
Informal Discussion and Break |
| 2:50 pm |
Image Acquisition Issues (continued)
- Exposure field recognition
- Beam/part/receptor alignment
- Fundamental principle of exposure
- Selection of exposure factors
- Technical factor systems
- Limit patient exposure
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| 4:30 pm |
Adjourn |
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Registration
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How to Register
By phone call: 1-800-765-6864
By Mail, Fax or Online:
Complete the form on this page then click the Register button.
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Hotel Information
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