This theory module provides an introduction to digital image acquisition, display and storage. It offers students and practitioners an understanding of the technology involved in digital radiographic imaging and storage systems, including digital fluoroscopy equipment. It also covers quality control and the systematic management of patient radiographic data using PACS. This module is an ideal resource if you are studying for the American Registry of Radiologic Technologists® (ARRT) registry exams.
Introduction
Step 1 - Digital radiography
Step 1.1 - Image acquisition
Step 1.2 - Equipment
Step 1.2.1 - Flat-panel detectors
Step 1.3 - Grid
Step 1.4 - Collimation
Step 1.5 - Patient radiation dose
Step 1.6 - Digital mammography
Step 1.7 - Advantages of digital radiography imaging system
Step 2 - Digital fluoroscopy
Step 2.1 - Digital fluoroscopy equipment
Step 2.1.1 - X-ray tube and generator
Step 2.1.2 - Digital fluoroscopy with image intensifier and CCD
Step 2.1.3 - Digital fluoroscopy with flat-panel detector
Step 2.2 - Advantages of flat-panel detectors
Step 2.3 - Digital subtraction angiography
Step 2.3.1 - Digital subtraction equipment
Step 2.3.2 - Image acquisition
Step 2.3.3 - Temporal subtraction
Step 2.3.4 - Energy subtraction
Step 2.3.5 - Roadmapping
Step 2.3.6 - Patient radation dose
Step 2.4 - Post-processing
Step 2.4.1 - Windowing
Step 2.4.2 - Edge enhancement
Step 3 - Digital image viewing and picture archiving and communication system (PACS)
Step 3.1 - Display and viewing of the digital image
Step 3.2 - Photometry
Step 3.3 - Digital display monitor
Step 3.3.1 - Active matrix liquid crystal display
Step 3.3.2 - Advantages of an AMLCD over a CRT
Step 3.3.3 - Disadvantage of an AMLCD over a CRT
Step 3.3.4 - Advantages of soft copy over hard copy images
Step 3.4 - Picture archiving and communication system
Step 3.4.1 - Components of picture archiving and communication system
Step 3.4.2 - Image compression
Step 3.4.3 - PACS workflow
Step 4 - Digital display and imaging system quality control, and artifacts
Step 4.1 - Daily routine checks
Step 4.2 - Weekly checks
Step 4.3 - Monthly checks
Step 4.4 - Digital display quality control
Step 4.4.1 - Luminance testing
Step 4.4.2 - Distortion testing
Step 4.4.3 - Reflection testing
Step 4.4.4 - Luminance response
Step 4.4.5 - Digital display noise
Step 4.5 - Image artifacts
Step 4.5.1 - Computed radiography image receptor artifacts
All required reference materials are provided with this program. Technical requirements:
Internet Connection
• Broadband or High-Speed (DSL, Cable, Wireless)
Hardware Requirements
• Processor - 2GHz Processor or Higher
• Memory - 1 GB RAM Minimum Recommended
Software Requirements
• Operating Systems - Windows 7, 8 or 10; Mac OS x 10 or higher
• Microsoft Office 2007, 2010 or 2013 or a Word Processing application to save and open Microsoft Office formats (.doc, .docx, .xls, .xlsx, .ppt, .pptx)
• Internet Browsers - Google Chrome is highly recommended
• Cookies MUST be enabled
• Pop-ups MUST be allowed (Pop-up Blocker disabled)
• Adobe PDF Reader
This class is an independent-study course. Students will have all the resources needed to successfully complete the course within the online material. A student helpdesk is available for technical support during the course enrollment.
Digital Radiography and Fluoroscopy, Image Viewing and PACS, and Quality Control Simulation FAQs
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