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A Comprehensive Guide to Radiographic Sciences and Technology

A Comprehensive Guide to Radiographic Sciences and Technology


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About the Book

A Comprehensive Guide to Radiographic Sciences and Technology is a concise review of radiographic physics and imaging, perfect for students preparing for certification examinations such as the American Registry for Radiologic Technologists (ARRT). Aligned with the core radiographic science components of the current American Society of Radiologic Technologists (ASRT) curriculum, this up-to-date resource covers topics including radiation production and characteristics, imaging equipment, digital image acquisition and display, radiation protection, basic principles of computed tomography, and quality control.   The guide begins with an overview of the radiographic sciences and technology, followed by detailed descriptions of the major components of digital radiographic imaging systems. Subsequent sections discuss the essential aspects of diagnostic radiography and computed tomography, including basic physics, imaging modalities, digital image processing, quality control, imaging informatics, and basic concepts of radiobiology and radiation protection. Throughout the book, concise chapters summarise the critical knowledge required for effective and efficient imaging of the patient while emphasising the important, yet commonly misunderstood, relationship between radiation dose and image quality. Written by an internationally recognised expert in the field, this invaluable reference and guide:  Provides easy access to basic physics, techniques, equipment, and safety guidelines for radiographic imaging  Reflects the educational requirements of the American Society of Radiologic Technologists (ASRT), the Canadian Association of Medical Radiation Technologists (CAMRT), the College of Radiographers (CoR), and other radiography societies and associations worldwide  Offers a range of pedagogical tools such as chapter outlines, key term definitions, bulleted lists, practical examples, and links to current references and additional resources  Includes charts, diagrams, photographs, and x-ray images  A Comprehensive Guide to Radiographic Sciences and Technology is required reading for students in programs using ionizing radiation, those preparing for the ARRT and other global radiography certification exams, and practising technologists wanting to refresh their knowledge. 

Table of Contents:
Foreword Preface SECTION 1: INTRODUCTION Chapter 1: Radiographic Sciences and Technology: An Overview Radiographic Imaging Systems: Major Modalities and Components Radiographic Imaging Physics Essential Physics of Diagnostic Imaging Digital Radiographic Imaging Modalities Radiographic Exposure Technique Image Quality Considerations Computed Tomography-Physics and Instrumentation Quality Control Imaging Informatics at a Glance Radiation Protection and Dose Optimization Radiobiology Technical Factors Affecting Dose in Radiographic Imaging Radiation Protection in Diagnostic Radiography Radiation Protection Regulations Optimization of Radiation Protection References Chapter 2: Digital Radiographic Imaging Systems: Major Components Film-Screen Radiography: A Short Review of Principles Digital Radiography Modalities: Major System Components Computed Radiography Flat-Panel Digital Radiography Digital Fluoroscopy Digital Mammography Computed Tomography Image Communication Systems Picture Archiving and Communication System References SECTION 2: BASIC RADIOGRAPHIC SCIENCES and TECHNOLOGY Chapter 3: Basic Physics of Diagnostic Radiography Structure of the Atom Nucleus Electrons, Quantum Levels, Binding Energy, Electron Volts Energy Dissipation in Matter Excitation Ionization Types of Radiation Electromagnetic Particulate X-Ray Generation X-Ray Production Properties of X-rays Origin of X-Rays Characteristic Radiation Bremstrahlung Radiation X-ray Emission X-Ray Beam Quantity and Quality Factors Affecting X-Ray Beam Quantity and Quality Interaction of Radiation with Matter Mechanisms of Interaction in Diagnostic X-Ray Imaging Radiation Attenuation Linear Attenuation Coefficient Mass Attenuation Coefficient Half Value Layer Radiation Quantities and Units References Chapter 4: The X-Ray Tube and Generator Physical Components of the X-Ray Machine Components of the X-Ray Circuit The Power Supply to the X-Ray Circuit The Low Voltage Section (Control Console) The High Voltage Section Types of X-Ray Generators Three-Phase Generators High-Frequency Generators Power Ratings The X-Ray Tube: Structure and Function Major Components Special X-Ray Tubes: Basic Design Features Double-Bearing Axle Heat Capacity and Heat Dissipation Considerations X-Ray Beam Filtration and Collimation Inherent and Added Filtration Effects of Filtration on X-ray Tube Output Intensity Half-Value Layer Collimation References Chapter 5: Digital Image Processing at a Glance Digital Image Processing Definition Image Formation and Representation Processing Operations Characteristics of Digital Images Gray Scale Processing Windowing Conclusion References Chapter 6: Digital Radiographic Imaging Modalities: Principles and Technology Computer Radiography Essential Steps Basic Physical Principles Response of the IP to Radiation Exposure Standardized Exposure Indicator Flat-Panel Digital Radiography What is Flat-Panel Digital Radiography (FPDR)? Types of FPDR Systems Basic Physical Principles of Indirect and Direct Flat-Panel Detectors The Fill Factor of the Pixel in the Flat-Panel Detector Exposure Indicator Image Quality Descriptors for DR Systems Continuous Quality Improvement for DR Systems Digital Fluoroscopy Digital Fluoroscopy Modes Image Intensifier-Based Digital Fluoroscopy Characteristics Flat-Panel Digital Fluoroscopy Characteristics Digital Mammography Screen-Film Mammography: Basic Principles Full-Field Digital Mammography-Major Elements Digital Tomosynthesis at a Glance Imaging System Characteristics Synthesized 2D Digital Mammography References Chapter 7: Image Quality and Dose The process of Creating an Image Image Quality Metrics Contrast Contrast Resolution Spatial Resolution Noise Contrast-to-Noise Ratio Signal-to-Noise Ratio Artifacts Dose and Image Quality Digital Detector Response to the Dose Detective Quantum Efficiency References SECTION 3: COMPUTED TOMOGRAPHY: BASIC PHYSICS and TECHNOLOGY Chapter 8: The Essential Technical Aspects of Computed Tomography Physics Radiation Attenuation Technology Data Acquisition: Principles and Components Image Reconstruction Image Display, Storage, and Communication MultiSlice CT (MSCT): Principles and Technology Slip-Ring Technology X-Ray Tube Technology Interpolation Algorithms MSCT Detector Technology Selectable Scan Parameters Isotropic CT Imaging MSCT Image Processing Image Postprocessing Windowing 3-D Image Display Techniques Image Quality Spatial Resolution Contrast Resolution Noise Radiation Protection CT Dosimetry Factors Affecting Patient Dose Optimizing Radiation Protection Conclusion References SECTION 4: CONTINUOUS QUALITY IMPROVEMENT Chapter 9: Fundamentals of Quality Control Introduction Definitions Essential Steps of QC QC Responsibilities Steps in Conducting a QC Test The Tolerance Limits or Acceptance Criteria Parameters for QC Monitoring QC Testing Frequency Tools for QC Testing The Format of a QC Test Performance Criteria/Tolerance Limits for Common QC Tests Radiography Fluoroscopy Repeat Image Analysis Computed Tomography QC Tests for Technologists References SECTION 5: PACS and IMAGING INFORMATICS Chapter 10: Imaging Informatics at a Glance Introduction Picture Archiving and Communication Systems: Characteristic Features Definition Core Technical Components Imaging Informatics?  Enterprise Imaging Cloud Computing Big Data Artificial Intelligence Machine Learning and Deep Learning Applications in Medical Imaging AI in CT Image Reconstruction Ethics of AI in Radiology-A Joint Multi-Society Summary Statement.  References SECTION 5: RADIATION PROTECTION Chapter 11: Basic Concepts of Radiobiology What is Radiobiology? Generalizations About Radiation Effects on Living Organisms Relevant Physical Processes Ionization Excitation Linear Energy Transfer Relative Biological Effectiveness Radiolysis of Water Dose-Response Models The Linear Non-Threshold (LNT) Dose-Response Model The Linear Threshold Dose-Response Model Stochastic Effects Deterministic Effects Radiation Effects on the Conceptus References Chapter 12: Technical Dose Factors in Radiography, Fluoroscopy, and CT Dose Factors in Digital Radiography The X-Ray Generator Exposure Technique Factors X-Ray Beam Filtration Collimation and Field Size SID and SSD Patient Thickness and Density Scattered Radiation Grid The Sensitivity of the Image Receptor Dose Factors in Fluoroscopy Fluoroscopic Exposure Factors Fluoroscopic Equipment Factors CT Radiation Dose Factors and Dose Optimization Considerations Dose Distribution in the Patient CT dose Metrics Factors Affecting the Dose in CT Dose Optimization Overview References Chapter 13: Essential Principles of Radiation Protection Introduction Why Radiation Protection? Categories of Data from Human Exposure Radiation Dose-Risk Models Summary of Biological Effects Radiation Protection Organizations Objectives of Radiation Protection Radiation Protection Philosophy ICRP Radiation Protection Framework Justification Optimization Dose Limits Dose Limits Personal Actions Time Shielding Distance Radiation Quantities and Units Sources of Radiation Exposure Quantities and Units Personnel Dosimetry Optimization of Radiation Protection Regulatory and Guidance Recommendations Diagnostic Reference Levels Gonadal Shielding: Past Considerations X-Ray Protective Shielding Current State of Gonadal Shielding References Index

About the Author :
Dr Euclid Seeram, PhD, MSc, BSc, FCAMRT, currently serves as honorary senior lecturer at the University of Sydney-Faculty of Health Sciences; adjunct associate professor at Monash University-Medicine, Nursing, and Health Sciences; adjunct professor at Charles Sturt University-Faculty of Science; and Adjunct Associate Professor-Faculty of Health, University of Canberra; in Australia. He has published more than 50 papers in professional radiologic technology journals and has had 20 textbooks published on computed tomography, computers in radiology, radiographic instrumentation, digital radiography, and radiation protection. He is a founding member of the Journal of Medical Imaging and Radiation Sciences and is now on editorial boards for Radiography; Biomedical Imaging and Intervention Journal; Open Journal of Radiology; Journal of Allied Health; Journal of Social Science & Allied Health Professions. Euclid also serves on the international advisory panel for the Journal of Medical Radiation Sciences.


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Product Details
  • ISBN-13: 9781119581833
  • Publisher: John Wiley & Sons Inc
  • Publisher Imprint: Standards Information Network
  • Language: English
  • ISBN-10: 1119581834
  • Publisher Date: 06 Apr 2021
  • Binding: Digital (delivered electronically)
  • No of Pages: 240


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