Digital Radiography from Detector to Display: Acquisition, Processing, Evaluation, and Quality Assurance for the Working Technologist

Digital Radiography from Detector to Display gives the radiologic technologist and the limited permit X-ray technician a complete working account of the digital image, following it through the digital chain from the receptor that records it to the display on which it is read. Eight sections cover cassette-based and cassette-less receptors; image acquisition, histogram analysis, and exposure indicators, including the deviation index; acquisition errors, scatter control, and grid use; default software processing and the artifacts of excess; exposure fundamentals, dose creep, and current shielding guidance; a nine-step method for evaluating the digital image; quality assurance, panel calibration, and reject analysis; and image display, PACS, DICOM, teleradiology, and patient confidentiality. Written as fresh review material rather than textbook excerpts, the course threads clinical scenarios through every section, includes twenty-six reference tables and worked examples, and closes with a comprehensive summary built for retention.

Approvals & Acceptance

• ✓
  ASRT Approved, Category A

  Accepted by the ARRT^® toward your CE requirement
• ✓
  ARDMS Accepted

  Counts for ARDMS credential holders
• ✓
  NMTCB Accepted

  Counts for NMTCB credential holders
• ✓
  California

  Accepted for CRTs, XTs, Supervisors and Operators
• ✓
  Florida

  Approved for Technical Category A for Florida technologists
• ✓
  Texas: Directly Related

  Counts toward the directly related hours Texas MRTs need (at least 12 of 24)
• ✓
  We Report for You: Florida, Texas, Kansas and New Hampshire

  Completions are reported in the first week of each month for the previous month: Florida directly to the Florida Department of Health, Bureau of Radiation Control; Texas, Kansas and New Hampshire to CE Broker. Your state license number must be entered in your dashboard for us to report your credits.
• ✓
  All other states

  Accepted

Applicable Disciplines

Learning Objectives

• 1Describe digital image characteristics and compare the construction, readout, and performance of cassette-based and cassette-less receptors, including dynamic range versus exposure latitude
• 2Explain image acquisition, exposure field recognition, and histogram analysis, and use proprietary and standardized exposure indicators, including the deviation index, to correct technique
• 3Recognize and prevent acquisition errors, including recognition and histogram failures, low intensity response, poor scatter control, grid cutoff, and the Moire effect
• 4Describe default software processing from automatic rescaling through gradation, edge enhancement, multifrequency processing, and noise reduction, and identify the artifacts of excess processing
• 5Select exposure factors for optimal receptor exposure, adapt technique for pediatric, bariatric, and mobile work, and control patient dose by avoiding dose creep and applying current shielding guidance
• 6Evaluate the digital image with a nine-step method for exposure level, analysis errors, contrast, recorded detail, and artifacts
• 7Apply quality assurance and maintenance, including acceptance testing, reader, plate, and panel care, uniform default processing codes, and reject analysis
• 8Describe display monitors and their calibration, PACS, DICOM, teleradiology, and compression, and perform annotation and image manipulation while protecting patient confidentiality

Course Outline

• •Section 1: Digital Image Characteristics and Image Receptors
• •Section 2: Image Acquisition and Exposure Indicators
• •Section 3: Acquisition Errors, Scatter Control, and Grids
• •Section 4: Default Software Processing
• •Section 5: Exposure Fundamentals and Patient Dose
• •Section 6: Evaluating the Digital Image
• •Section 7: Quality Assurance and Maintenance
• •Section 8: Image Display and Informatics
• •Course Summary