Description
Highly effective as a minimally invasive diagnostic and screening tool, CT colonography (CTC) is an important part of todays clinical armamentarium.In this concise, step-by-step guidebook, written by specialists who also run training courses in CT colonography, readers will find a wealth of information for everyday practice. From examination methods and image interpretation, to screening and reporting issues, to common mistakes and pitfalls to avoid, this compact book is all-inclusive, ideal for both beginners and more experienced examiners who want to deepen their knowledge of this powerful technique.
Special Features:
- Full discussion of how to begin, including indications and contraindications, patient preparation, CT examination techniques, and patient risk profile
- Strategies for data analysis and clinical interpretation, including 2D and 3D applications (virtual visualization), polyp measurement, and computer-assisted detection of polyps
- Informative, point-by-point sections on clinical findings, starting with normal anatomy of the colon and moving on to common diseases, postoperative conditions, pitfalls and artifacts, and extracolonic involvement
- More than 400 brilliant, fully labeled illustrations (176 in full-color), including normal CT scans and 2D and 3D reconstructions that demonstrate diagnostic criteria, possible differential diagnoses, and disease states
- Guidelines for standardizing reports and documenting findings
- Tips for setting up a virtual colonoscopy service in your clinic or practice
With all methods and techniques following current international guidelines and consensus statements, this book offers easy-to-implement, standardized clinical protocols that can be applied in both the clinic and private practice settings. It is essential for all radiologists and gastroenterologists who perform, interpret and report CTC findings, as well as for physicians who need a reliable overview of this robust and useful detection and screening tool.
Chapter
Standard Bowel Preparation Protocol
Marking Stool and Residual Fluid (Fecal/Fluid Tagging)
Reduced Bowel Preparation
Laxative-Free (Noncathartic) CT Colonography
ESGAR Consensus Statement on Bowel Preparation
Basic Principles and Preparation
Multidetector CT Protocols for CT Colonography
Intravenous Contrast Media
Risk Profile of CT Colonography
Data Analysis and Interpretation Strategies
Performing the Evaluation
Additional 3D Projections
Advanced 3D Visualization Techniques
Criteria for Correct Measurement of Polyps
Techniques for Measuring Polyps
Influence of Fecal Tagging
Discrepancies between CT Colonography and Optical Colonoscopy Findings
Computer-Assisted Detection of Polyps
Interpretation Strategies Using CAD
Influence on Interpretation Time
What to Bear in Mind when Using CAD
4 Findings at CT Colonography
Normal Anatomy of the Colon and Rectum
CT Morphology of the Bowel Wall
Bowel Segments and Distension
Positional Anomalies and Variations in Length
Morphology at CT Colonography
Polypoid Lesions of the Colon
Characterization of Polypoid Lesions at CT Colonography
Polypoid Filling Defects of Extracolonic Origin
Malignant Diseases of the Colon and Rectum
Inflammatory Bowel Disease
Chronic Inflammatory Bowel Disease
CT Colonography for Surveillance after Colorectal Surgery
Follow-Up after Colorectal Surgery
Role of CT Colonography and Examination Technique
Metachronous Lesions of the Colon
CT Colonography in Patients with a Colostomy
Pitfalls in Data Evaluation
Frequency and Distribution
Strategies for Improving Detection and Differentiation of Extracolonic Findings
Recommendations on Best Practice for Reporting
5 How to Generate a Useful Report
Impression and Recommendations
Disclaimer on the Limitations of the Method
Inclusion of Images in the Report
Strategies for the Standardization and Documentation of Findings
ESGAR Consensus Statement on the Documentation of Colonic Lesions
C-RADS—CT Colonography Reporting and Data System
American Gastroenterological Association
Controversies in Documentation
Epidemiology of Colorectal Carcinoma
Choice of Screening Procedure
7 How to Train for CT Colonography
CT Colonography is Different from CT of the Abdomen
The Colon is a Complex Organ
Common Mistakes in CT Colonography Due to Lack of Expertise
CT Colonography Requires Special Training
Computer-Assisted Detection as a Training Method
How Many Proven Cases Ought to Be Interpreted?
Is CT Colonography Just Too Difficult?