Distribution of alveolar‐interstitial syndrome in dogs and cats with respiratory distress as assessed by lung ultrasound versus thoracic radiographs

Objective To assess distribution of alveolar‐interstitial syndrome (AIS) detected by lung ultrasound (LUS) compared to thoracic radiographs (TXR). Design Prospective study. Setting University teaching hospital. Animals Seventy‐six dogs and 24 cats with acute respiratory distress or tachypnea. Interv...

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Bibliographic Details
Published in:Journal of veterinary emergency and critical care (San Antonio, Tex. : 2000) Tex. : 2000), 2018-09, Vol.28 (5), p.415-428
Main Authors: Ward, Jessica L., Lisciandro, Gregory R., DeFrancesco, Teresa C.
Format: Article
Language:English
Subjects:
Animals
canine
Cat Diseases - diagnostic imaging
Cats
congestive heart failure
Dog Diseases - diagnostic imaging
Dogs
feline
Female
Lung Diseases, Interstitial - complications
Lung Diseases, Interstitial - diagnostic imaging
Lung Diseases, Interstitial - veterinary
Male
noncardiogenic pulmonary edema
point‐of‐care ultrasound
Prospective Studies
Pulmonary Alveoli - diagnostic imaging
Radiography, Thoracic - veterinary
Respiratory Distress Syndrome, Adult - complications
Respiratory Distress Syndrome, Adult - diagnostic imaging
Respiratory Distress Syndrome, Adult - veterinary
Sensitivity and Specificity
Ultrasonography - veterinary
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Summary:Objective To assess distribution of alveolar‐interstitial syndrome (AIS) detected by lung ultrasound (LUS) compared to thoracic radiographs (TXR). Design Prospective study. Setting University teaching hospital. Animals Seventy‐six dogs and 24 cats with acute respiratory distress or tachypnea. Interventions Patients underwent LUS and TXR within 6 hours. Lung ultrasound images were scored for presence and quantity of B‐lines in 4 lung quadrants (right cranial, right caudal, left cranial, left caudal). An individual LUS quadrant was scored positive if > 3 B‐lines were observed within a single intercostal space. Dorsoventral TXR were scored for presence of AIS in the same 4 quadrants. An individual TXR quadrant was scored positive if infiltrate was present in ≥ 25% of the quadrant. Medical records were evaluated for final diagnosis. Measurements and Main Results Quadrant‐by‐quadrant spatial agreement in assigning AIS using LUS versus TXR was fair (K = 0.24 – 0.56). Lung ultrasound scored a higher number of quadrants positive per patient (2.65 ± 1.59 vs. 2.13 ± 1.48; P = 0.012). Patterns of distribution of AIS differed significantly based on final diagnosis. Patients with left‐sided congestive heart failure were more likely to have diffuse AIS on LUS (P 
ISSN:1479-3261
1476-4431
DOI:10.1111/vec.12750