Peer-reviewed veterinary case report
CT scans can show over 50% bronchial collapse in healthy dogs
By Oh, Dayoung et al.·Published in Veterinary radiology & ultrasound : the official journal of the American College of Veterinary Radiology and the International Veterinary Radiology Association·2019·College of Veterinary Medicine and the Research Institute for Veterinary Science, South Korea·View original on PubMed →
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Original publication title: Computed tomographic bronchial collapsibility values over 50% may be detected in healthy dogs.
- Species:
- dog
Plain-English summary
A group of 10 healthy Beagle dogs underwent a special CT scan to measure how much their airways could collapse during breathing. The scans showed that some dogs had a bronchial collapsibility (how much the airways can narrow) of over 50% in certain areas of their lungs, which is significant for diagnosing airway issues. This study suggests that using CT scans can help veterinarians noninvasively assess bronchial collapse in dogs, which is important for understanding chronic coughing problems.
People also search for: dog coughing causes · Beagle bronchial collapse · CT scan for dog breathing problems · how to treat dog bronchomalacia · dog airway issues diagnosis
Abstract
Bronchomalacia and bronchial collapse are important causes of chronic coughing in dogs. The current reference standard diagnostic tests for these problems are flexible bronchoscopy and biopsy. Previous human studies have also supported inspiration/expiration computed tomography (CT) as a diagnostic test. The current prospective, pilot study aimed to determine whether inspiration/expiration CT is also a feasible test for quantifying bronchial collapsibility in dogs. Thoracic CT images were acquired using a 64-row multidetector CT for 10 healthy Beagle dogs during maximal inspiration and expiration. For each scan, one observer measured transverse sectional areas of the mainstem and lobar bronchi, and the dorsal and ventral segmental bronchi of the left cranial lobar bronchus. Diameters for each bronchus were also measured in transverse, sagittal, and dorsal planes. Bronchial collapsibility (%) was calculated as the difference between inspiration/expiration transverse sectional areas divided by the inspiration transverse sectional areas. Mean bronchial collapsibility of all bronchi was 38.20 ± 15.17%. A collapsibility of over 50% was found in the dorsal (n = 7) and ventral (n = 4) segmental bronchi of the left cranial lobar bronchus, and the left caudal (n = 5) and right middle (n = 2) lobar bronchus. Bronchial collapsibility measurements were greater in the dorsal and ventral segmental bronchi of the left cranial lobar bronchus and the left caudal lobar bronchus (P < 0.001). Findings supported inspiration/expiration CT as a modality to noninvasively assess bronchial collapse in dogs and a bronchial collapsibility value greater than 50% for detecting pathologic bronchial collapse in clinically affected dogs.
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Search related cases →Original publication on PubMed: https://pubmed.ncbi.nlm.nih.gov/30311323/