RAD 365 - Imaging II
Last Date of Approval: Spring 2021
2 Credits
Total Lecture Hours: 30
Total Lab Hours: 0
Total Clinical Hours: 0
Total Work-Based Experience Hours: 0
Course Description:
This course is one semester and a continuation of RAD 320 - Imaging I . This course is designed for students who are pursuing a radiologic technology degree. Students continue to explore the principles of radiographic imaging. Imaging principles will involve the following concepts digital imaging, automatic processing, image characteristics, and geometrical factors. This course will help students gain the basic knowledge of advanced radiographic imaging and will help provide entry-level skills related specifically to radiologic technologist job duties while enhancing their overall knowledge when making important life decisions.
Corequisites: RAD 230, RAD 142, RAD 430
Prerequisites: RAD 210 , RAD 122 , RAD 320
Mode(s) of Instruction: Traditional/face-to-face
Credit for Prior Learning: There are no Credit for Prior Learning opportunities for this course.
Course Fees: None
Common Course Assessment(s): None
Student Learning Outcomes and Objectives:
Student Learning Outcomes:
- Review Concepts of Radiographic Image Quality
- Explain the importance of computer technology in radiology and in Medical Image formation, and define the process and acquisition of computed radiography
- Define the process and acquisition of digital radiography and recognize correct exposure factor formulation and spatial resolution
- Illustrate aspects of viewing the Digital Radiographic Image and the pre/post processing factors.
- Identify artifacts in digital image acquisition errors and the quality management of a radiographic image.
- Examine Quality Control of the Digital Radiographic Image on an image display
Course Objectives:
Review Concepts of Radiographic Image Quality:
- List the prime exposure factors.
- Discuss mAs and kVp in relation to x-ray beam quantity and quality.
- Define radiographic quality, resolution, noise, and speed
- Interpret the shape of the characteristic curve
- Explain Grids and their purpose and use
- Distinguish the geometric factors that affect image quality
- Describe the effect of scatter radiation on the radiographic image and the beam restriction of scatter radiation
- Explain patient factors along with differential absorption and beam filtration
- Identify Image quality factors
Unit 1 - Explain the importance of computer technology in radiology and in Medical Image formation, and define the process and acquisition of computed radiography
- Discuss history of computer, the role of transistors and microprocessors
- Define: bit, byte, word, and various computer languages
- Compare different classifications of computer programs, systems software and application programs
- List and define computer components and data management
- Knowledge of the methods of communication between computers
- Explain the primary use of computers in medical imaging
- Employ the process of Computed Radiography, terminology and advantages.
- Describe the storage phosphor imaging plate and its features and function.
- Describe how the CR reader functions to help produce a visible image.
- Learn how CR relates to spatial and contrast resolution, and noise.
- Identify any connection between reduced patient dose and CR.
Unit 2 - Define the process and acquisition of digital radiography and recognize correct exposure factor formulation and spatial resolution
- Identify five digital radiographic modes
- Distinguish between indirect and direct digital radiography
- Define: capture, coupling, and collection processes for each type of digital radiography system
- State the use of silicon, selenium, cesium iodide, and gadolinium oxysulfide in digital radiography systems
- Define the difference between contrast resolution and spatial resolution
- Describe how spatial frequency functions and the units used to measure it.
- Explain modulation transfer function (MTF) and the MFT curve
- Discuss how post processing and Wide Dynamic Range benefit the visualization of the radiographic image.
- Describe the features of a contrast-detail curve.
- Know the characteristics of digital imaging relating to lower radiation dose for the patient.
Unit 3 - Illustrate aspects of viewing the Digital Radiographic Image and the pre/post processing factors.
- Choose the correct units and quantities used in photometry
- Explain how the luminous intensity of the digital image display varies
- Differentiate between hard copy and soft copy
- Describe the active matrix liquid crystal display and its features.
- Recognize and Judge the features for preprocessing and post processing.
- Identify aspects of the Picture Archiving and Communication system (PACS).
Unit 4 - Identify artifacts in digital image acquisition errors and the quality management of a radiographic image.
- Know the three classification schemes of imaging artifacts and how to manage them
- Identify the difference of for-processing images and for-presentation images
- Explain data compression and lossless vs. lossy compression
- Analyze how to use an image histogram in digital radiographic image artifacts
- Describe how digital radiographic image artifacts are created due to lack of collimation, use of partition, or improper alignment.
- Describe the factors the impact the performance of digital display devices
- Explain the test patterns used for digital display device performance assessment
- Learn the quality control tests and the testing schedule required for digital display devices
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