Virtual Colonoscopy A Practical Guide

Virtual colonoscopy, or CT colonography, is a rapidly evolving technique for the detection of tumoral lesions in the colon. It is now accepted by the American Cancer Society as a valuable screening tool for both colorectal cancer and its adenomatous precursor. Virtual colonoscopy requires state-of-the-art technique with rigorous preparation, colonic distension, and optimization of scanning parameters. Dedicated reading, analysis, and reporting of the data sets are mandatory. With contributions from a number of leaders in the field, this book addresses all the important issues relating to virtual colonoscopy. There is a particular focus on practical aspects: how to start virtual colonoscopy in your department, the regular preparation, the importance of fecal tagging, how to reduce the preparation, how to obtain optimal colonic distension, and the correct scanning parameters. Imaging characteristics and pitfalls are considered in detail, with an extensive pictorial review of difficult lesions; the importance of computer-aided diagnosis is also discussed. In this second edition the text has been updated with the latest study results and developments in technology and new illustrations have been included. This book will be invaluable to every radiologist seeking information on how to perform the exciting technique of virtual colonoscopy.

Contents
Why We Do CTC: Screening for Colorectal Ccancer.- The Performance of CTC.- Starting CT Colonography in Your Department.- The Eligible Patient: Indications and Contra-Indications.- Patient Preparation for CT Colonography.- The Alternative: Faecal Tagging.- How to Get the Colon Distended.- The Right Scanner Parameters to Use.- How to Interpret the Data Sets?- How to Avoid Pitfalls in Imaging. Causes and Solutions.- 3D Imaging: Invaluable for the Correct Diagnosis.- The Challenge: The Flat Lesion.- Extracolonic Findings in CT Colonography.- The Future: Computer-Aided Detection.- Quality and Consistency in Reporting CT Volonography.- Virtual Colonoscopy Beyond Polyp Detection?- Pictorial Overview of Normal Anatomy, Mimics of Disease, and Neoplasia at CT Colonograpy.- Subject Index.- List of Contributors.

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