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Computed Tomography

Computed Tomography

Tomography refers to imaging by sections. Computed tomography (CT) is a non-invasive imaging technique that uses computers to analyze several cross-sectional X-rays to reveal minute details about structures in the body.
The technique was invented in the 1970s and is based on the principle that as X-rays pass through the body, they are absorbed or reflected at different levels. In the technique, a patient lies on a motorized platform while a computerized axial tomography (CAT) scanner rotates...

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Common arterial trunk in a cat: a high-resolution morphological analysis with micro-computed tomography.

S Nakao¹, A J Atkinson², T Motomochi³

¹Department of Biomedical Sciences, College of Life Sciences, Ritsumeikan University, Japan; Ritsumeikan Global Innovation Research Organization, Ritsumeikan University, 1-1-1 Noji-higashi, Kusatsu, Shiga 525-8577, Japan; Division of Cardiovascular Sciences, Faculty of Biology, Medicine and Health, University of Manchester, 46 Grafton Street, Manchester M13 9NT, United Kingdom.

Journal of Veterinary Cardiology : the Official Journal of the European Society of Veterinary Cardiology

|January 24, 2021

Summary

A cat with respiratory distress was diagnosed with a rare congenital heart defect, a common arterial trunk, using advanced micro-computed tomography (CT) postmortem. This imaging technique proved valuable for diagnosing complex cardiac anomalies in veterinary medicine.

Keywords:

Advanced imaging modalities Congenital heart disease Diagnostic imaging Echocardiography

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Area of Science:

Veterinary Cardiology
Congenital Heart Disease
Advanced Imaging Techniques

Background:

Congenital heart defects are critical in veterinary cardiology.
Early diagnosis and understanding of complex cardiac anomalies are vital for prognosis.

Observation:

A 6-month-old cat presented with respiratory distress and a severe heart murmur.
Echocardiography revealed ventricular hypertrophy, a dilated aorta, ventricular septal defect, and absent pulmonary arteries.
Progressive cardiac decompensation led to congestive heart failure and death.

Findings:

Postmortem micro-computed tomography (CT) confirmed a common arterial trunk, an aortic-dominant type, with absence of the pulmonary trunk.
The common trunk bifurcated into the aorta and pulmonary arteries distally.
This detailed imaging elucidated the complex cardiac anatomy.

Implications:

Micro-computed tomography (CT) is a powerful tool for definitive postmortem diagnosis of complex congenital cardiac anomalies in animals.
Understanding these defects aids in veterinary diagnostics and research.
CT angiography may be preferred for in-vivo diagnosis of similar conditions.