| Description |
1 online resource (xxii, 398 pages) : illustrations (chiefly color) |
| Contents |
Intro -- Foreword -- Preface -- Acknowledgements -- Contents -- About the Authors -- Abbreviations -- 1: Introduction -- References -- 2: Patient-Centred Communication in Imaging -- 2.1 Introduction -- 2.2 What Is Communication? -- 2.3 Verbal and Nonverbal Communication -- 2.4 Sign, Symbols, and Codes -- 2.5 Denotative and Connotative Meanings -- 2.6 Ensuring a Successful CTC Study: Suggested Communication Materials to Inform Patients of Their Responsibilities -- 2.7 CTC Examinations and Patient Feedback -- 2.8 Readability of Imaging Reports |
|
2.9 Readability of Text of Instructions and Informed Consent for Patients -- 2.10 Summary -- References -- 3: Informed Consent -- 3.1 Introduction -- 3.2 What Is Consent? -- 3.2.1 Valid Consent -- 3.3 Why Informed Consent in CTC? -- 3.3.1 Informed Consent in Terms of the Use of Artificial Intelligence -- 3.4 The Legal Aspects of Consent -- 3.5 Patient Information -- 3.6 Risks Associated with CTC Procedures -- 3.7 The Duty of Consent and the Role of a CTC Radiographer -- 3.8 Good Practice in Information Giving -- 3.9 Clinical Audit to Include Informed Consent and Patient Information |
|
3.10 Summary -- References -- 4: Principles of CT and Hybrid Imaging -- 4.1 Introduction -- 4.2 Principles of CT -- 4.2.1 The X-ray Tube -- 4.2.2 What Are We Imaging? -- 4.3 Tomographic Reconstruction: Backprojection -- 4.3.1 Backprojection: An Example -- 4.4 Tomographic Reconstruction: Iterative Reconstruction -- 4.5 CT Numbers -- 4.6 Multi-Slice CT -- 4.7 Other Considerations -- 4.8 Hybrid Imaging -- 4.9 Summary -- References -- 5: Principles of Radiation Dose in CT and CT Colonography -- 5.1 Introduction -- 5.2 Radiation Units -- 5.3 CT-Specific Radiation Dose Measures |
|
5.3.1 The CTDI Measurement -- 5.3.2 Limitations of CTDI -- 5.4 Effective Dose -- 5.5 Low-Dose CTC -- 5.6 Dosimetric Considerations of Dual-Energy CT (DECT) -- 5.7 Dose for Clinical Audits -- 5.8 Summary -- References -- 6: Dose Optimisation in CT Colonography -- 6.1 Introduction -- 6.2 Justification -- 6.3 Optimisation -- 6.3.1 Risk -- 6.4 Patient Dose in CT: Controllable and Built-in Factors -- 6.4.1 Tube Current -- 6.4.2 Automatic Tube Current Modulation -- 6.4.3 Tube Voltage -- 6.4.4 Iterative Reconstruction -- 6.4.4.1 Use of Artificial Intelligence in CT Image Reconstruction |
|
6.4.5 Pre-patient Beam Filter -- 6.4.6 Active Collimators: Over-Ranging -- 6.4.7 Detector Material -- 6.4.8 Shielding -- 6.4.9 Pitch -- 6.4.10 Slice Thickness -- 6.4.11 Matrix Size -- 6.5 Other Practical Dose Saving Approaches -- 6.6 Diagnostic Reference Levels as an Optimisation Tool -- 6.7 Ethics in Radiology Imaging -- 6.8 Conclusion -- References -- 7: Overview of CTC in Imaging the Colon -- 7.1 Introduction -- 7.2 Reasons for Referral to CTC -- 7.3 Development of CTC -- 7.3.1 Scanner Technology -- 7.3.2 Interpretation Methods -- 7.4 Evolution of the Technique |
| Summary |
This second edition, comprising 28 chapters, explains every aspect of the role of radiographers in performing CT colonography (CTC) and interpreting CTC images with the aim of enabling radiographers to extend the scope of their practice. It provides information required with respect to communication with the patient, procurement of informed consent, the principles of CT as well as dual-energy CT and photon counting CT, radiation dose, patient preparation and positioning, the use of contrast media, the performance of diagnostic and screening CTC studies, the interpretation and reporting of images, legal and professional requirements, and the importance of clinical audits. A wide range of CTC findings is described and depicted, covering normal anatomy, artefacts, haemorrhoids, polyps, colon cancer, diverticular disease, lipomas, extracolonic structures, opportunistic screening for osteoporosis and metabolic associated fatty disease, and CTC in incomplete or failed colonoscopy. The role of other modalities such as ultrasound, magnetic resonance imaging, and nuclear medicine in colorectal cancer patients is discussed. In addition, the text covers the role of artificial intelligence and machine learning in imaging of the colon for the detection of polyps, diagnosis and staging of colorectal cancer. Lastly, a chapter focusing on self-assessment of image interpretation will aid learning. This book provides the support that radiographers need in order to perform CTC studies to the standard required in terms of advances in imaging and interpretation of images |
| Notes |
Includes index |
|
Online resource; title from PDF title page (SpringerLink, viewed December 13, 2023) |
|
Print version record |
| Subject |
Colon (Anatomy) -- Tomography.
|
|
Colon (Anatomy) -- Tomography.
|
| Form |
Electronic book
|
| Author |
Bortz, Joel H., editor.
|
|
Ramlaul, Aarthi, editor.
|
|
Munro, Leonie (Radiographer), editor.
|
| ISBN |
9783031308666 |
|
3031308662 |
|
