Veterinary Computed Tomography

Synopsis

This practical and highly illustrated guide is an essential resource for veterinarians seeking to improve their understanding and use of computed tomography (CT) in practice. It provides a thorough grounding in CT technology, describing the underlying physical principles as well as the different types of scanners. The book also includes principles of CT examination such as guidance on positioning and how to achieve a good image quality.

Written by specialists from twelve countries, this book offers a broad range of expertise in veterinary computed tomography, and is the first book to describe the technology, methodology, interpretation principles and CT features of different diseases for most species treated in veterinary practice.

Key features
 An essential guide for veterinarians using CT in practice
 Includes basic principles of CT as well as guidelines on how to carry out an effective examination
 Describes CT features of different diseases for most species treated in practice
 Written by a range of international leaders in the field
 Illustrated with high quality photographs and diagrams throughout

Summary

Chapter 1: Introduction to Veterinary Computed Tomography

* Definition and principles of CT imaging
* Historical development and advancements in veterinary CT
* Clinical applications and limitations of CT

Chapter 2: CT Equipment and Image Acquisition

* Types of CT scanners (e.g., helical, dual-energy)
* X-ray generation and detection systems
* Image reconstruction algorithms and artifacts
* Contrast agents and their administration

Example: A veterinarian uses a helical CT scanner to image a dog with a suspected lung infection. The scanner acquires a series of helical projections, which are then reconstructed into images. The veterinarian injects the dog with an intravenous contrast agent to enhance visualization of the lungs.

Chapter 3: Image Interpretation Principles

* Basic anatomy of different organs and systems
* Windowing and level adjustments for optimal image viewing
* Recognition and interpretation of normal and pathologic findings
* Use of multiplanar reformatting (MPR) and 3D reconstruction

Example: The veterinarian examines the CT images of the dog's lungs. They identify areas of increased opacity and consolidation, suggestive of pneumonia. They use MPR to create sagittal and transverse images to further define the extent and distribution of the infection.

Chapter 4: Thoracic Imaging

* Anatomy and CT imaging of the lungs, airways, and heart
* Common thoracic diseases diagnosed with CT (e.g., pneumonia, lung masses, mediastinal abnormalities)

Example: A cat with respiratory distress is imaged with CT. The images reveal a large mass in the lung, obstructing one of the airways. The mass is subsequently diagnosed as a lung cancer.

Chapter 5: Abdominal Imaging

* Anatomy and CT imaging of the liver, spleen, kidneys, gastrointestinal tract, and other abdominal organs
* Common abdominal diseases diagnosed with CT (e.g., liver diseases, gastrointestinal obstructions, renal calculi)

Example: A dog with persistent vomiting is imaged with CT. The images show a foreign body (a bone fragment) lodged in the stomach, causing obstruction. The foreign body is surgically removed, resolving the vomiting.

Chapter 6: Musculoskeletal Imaging

* Anatomy and CT imaging of bones, joints, and soft tissues
* Common musculoskeletal diseases diagnosed with CT (e.g., fractures, arthritis, joint effusions)

Example: A horse with lameness is imaged with CT. The images identify a subtle fracture in the cannon bone, which is not easily detected on routine radiographs. The early diagnosis allows for prompt treatment and improved recovery.

Chapter 7: Neurological Imaging

* Anatomy and CT imaging of the brain, spinal cord, and other nervous structures
* Common neurological diseases diagnosed with CT (e.g., brain tumors, cerebral hemorrhage, spinal cord injuries)

Example: A dog with seizures is imaged with CT. The images reveal a large brain tumor, which is surgically resected, alleviating the seizures.