Lung Ultrasound for Imaging of B-Lines in Dogs and Cats—A Prospective Study Investigating Agreement between Three Types of Transducers and the Accuracy in Diagnosing Cardiogenic Pulmonary Edema, Pneumonia and Lung Neoplasia

Transthoracic heart and lung ultrasound (LUS) was performed in 200 dogs and cats with dyspnea to evaluate the agreement between the results obtained using three types of transducers (microconvex, linear, and phased array) and to determine the accuracy of LUS in discriminating between three condition...

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Main Authors: Andrzej Łobaczewski, Michał Czopowicz, Agata Moroz, Marcin Mickiewicz, Marta Stabińska, Hanna Petelicka, Tadeusz Frymus, Olga Szaluś-Jordanow
Format: Article
Language:English
Published: MDPI AG 2021-11-01
Series:Animals
Subjects:
Online Access:https://www.mdpi.com/2076-2615/11/11/3279
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author Andrzej Łobaczewski
Michał Czopowicz
Agata Moroz
Marcin Mickiewicz
Marta Stabińska
Hanna Petelicka
Tadeusz Frymus
Olga Szaluś-Jordanow
author_facet Andrzej Łobaczewski
Michał Czopowicz
Agata Moroz
Marcin Mickiewicz
Marta Stabińska
Hanna Petelicka
Tadeusz Frymus
Olga Szaluś-Jordanow
author_sort Andrzej Łobaczewski
collection DOAJ
description Transthoracic heart and lung ultrasound (LUS) was performed in 200 dogs and cats with dyspnea to evaluate the agreement between the results obtained using three types of transducers (microconvex, linear, and phased array) and to determine the accuracy of LUS in discriminating between three conditions commonly causing dyspnea in companion animals: cardiogenic pulmonary edema (CPE), pneumonia, and lung neoplasm. The agreement beyond chance was assessed using the weighted Cohen’s kappa coefficient (κ<sub>w</sub>). The highest values of κ<sub>w</sub> (>0.9) were observed for the pair of microconvex and linear transducers. To quantify B-lines the lung ultrasound score (LUS<sub>score</sub>) was developed as a sum of points describing the occurrence of B-lines for each of 8 standardized thoracic locations. The accuracy of LUS<sub>score</sub> was determined using the area under ROC curve (AUROC). In dogs AUROC of LUS<sub>score</sub> was 75.9% (CI 95%: 65.0% to 86.8%) for distinguishing between lung neoplasms and the two other causes of dyspnea. In cats AUROC of LUS<sub>score</sub> was 83.6% (CI 95%: 75.2% to 92.0%) for distinguishing between CPE and the two other causes of dyspnea. The study shows that results obtained with microconvex and linear transducers are highly consistent and these two transducers can be used interchangeably. Moreover, the LUS<sub>score</sub> may help identify dogs with lung neoplasms and cats with CPE, however its diagnostic accuracy is only fair to moderate.
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spelling doaj.art-a0304bc0f561483abc032bb5faf482da2023-11-22T22:08:12ZengMDPI AGAnimals2076-26152021-11-011111327910.3390/ani11113279Lung Ultrasound for Imaging of B-Lines in Dogs and Cats—A Prospective Study Investigating Agreement between Three Types of Transducers and the Accuracy in Diagnosing Cardiogenic Pulmonary Edema, Pneumonia and Lung NeoplasiaAndrzej Łobaczewski0Michał Czopowicz1Agata Moroz2Marcin Mickiewicz3Marta Stabińska4Hanna Petelicka5Tadeusz Frymus6Olga Szaluś-Jordanow7Veterinary Clinic Auxilium, Arkadiusz Olkowski, Królewska Street 64, 05-822 Milanówek, PolandDivision of Veterinary Epidemiology and Economics, Institute of Veterinary Medicine, Warsaw University of Life Sciences-SGGW, Nowoursynowska Street 159, 02-776 Warsaw, PolandDivision of Veterinary Epidemiology and Economics, Institute of Veterinary Medicine, Warsaw University of Life Sciences-SGGW, Nowoursynowska Street 159, 02-776 Warsaw, PolandDivision of Veterinary Epidemiology and Economics, Institute of Veterinary Medicine, Warsaw University of Life Sciences-SGGW, Nowoursynowska Street 159, 02-776 Warsaw, PolandPrivate Veterinary Clinic, Wyszyńskiego Street 12/11, 41-200 Sosnowiec, PolandVeterinary Clinic Peteliccy, 1 Maja 27, 96-300 Żyrardów, PolandDepartment of Small Animal Diseases with Clinic, Institute of Veterinary Medicine, Warsaw University of Life Sciences-SGGW, Nowoursynowska Street 159, 02-776 Warsaw, PolandDepartment of Small Animal Diseases with Clinic, Institute of Veterinary Medicine, Warsaw University of Life Sciences-SGGW, Nowoursynowska Street 159, 02-776 Warsaw, PolandTransthoracic heart and lung ultrasound (LUS) was performed in 200 dogs and cats with dyspnea to evaluate the agreement between the results obtained using three types of transducers (microconvex, linear, and phased array) and to determine the accuracy of LUS in discriminating between three conditions commonly causing dyspnea in companion animals: cardiogenic pulmonary edema (CPE), pneumonia, and lung neoplasm. The agreement beyond chance was assessed using the weighted Cohen’s kappa coefficient (κ<sub>w</sub>). The highest values of κ<sub>w</sub> (>0.9) were observed for the pair of microconvex and linear transducers. To quantify B-lines the lung ultrasound score (LUS<sub>score</sub>) was developed as a sum of points describing the occurrence of B-lines for each of 8 standardized thoracic locations. The accuracy of LUS<sub>score</sub> was determined using the area under ROC curve (AUROC). In dogs AUROC of LUS<sub>score</sub> was 75.9% (CI 95%: 65.0% to 86.8%) for distinguishing between lung neoplasms and the two other causes of dyspnea. In cats AUROC of LUS<sub>score</sub> was 83.6% (CI 95%: 75.2% to 92.0%) for distinguishing between CPE and the two other causes of dyspnea. The study shows that results obtained with microconvex and linear transducers are highly consistent and these two transducers can be used interchangeably. Moreover, the LUS<sub>score</sub> may help identify dogs with lung neoplasms and cats with CPE, however its diagnostic accuracy is only fair to moderate.https://www.mdpi.com/2076-2615/11/11/3279agreement beyond chancelinear transducerlung ultrasonographymicroconvexphased array transducersmall animals
spellingShingle Andrzej Łobaczewski
Michał Czopowicz
Agata Moroz
Marcin Mickiewicz
Marta Stabińska
Hanna Petelicka
Tadeusz Frymus
Olga Szaluś-Jordanow
Lung Ultrasound for Imaging of B-Lines in Dogs and Cats—A Prospective Study Investigating Agreement between Three Types of Transducers and the Accuracy in Diagnosing Cardiogenic Pulmonary Edema, Pneumonia and Lung Neoplasia
Animals
agreement beyond chance
linear transducer
lung ultrasonography
microconvex
phased array transducer
small animals
title Lung Ultrasound for Imaging of B-Lines in Dogs and Cats—A Prospective Study Investigating Agreement between Three Types of Transducers and the Accuracy in Diagnosing Cardiogenic Pulmonary Edema, Pneumonia and Lung Neoplasia
title_full Lung Ultrasound for Imaging of B-Lines in Dogs and Cats—A Prospective Study Investigating Agreement between Three Types of Transducers and the Accuracy in Diagnosing Cardiogenic Pulmonary Edema, Pneumonia and Lung Neoplasia
title_fullStr Lung Ultrasound for Imaging of B-Lines in Dogs and Cats—A Prospective Study Investigating Agreement between Three Types of Transducers and the Accuracy in Diagnosing Cardiogenic Pulmonary Edema, Pneumonia and Lung Neoplasia
title_full_unstemmed Lung Ultrasound for Imaging of B-Lines in Dogs and Cats—A Prospective Study Investigating Agreement between Three Types of Transducers and the Accuracy in Diagnosing Cardiogenic Pulmonary Edema, Pneumonia and Lung Neoplasia
title_short Lung Ultrasound for Imaging of B-Lines in Dogs and Cats—A Prospective Study Investigating Agreement between Three Types of Transducers and the Accuracy in Diagnosing Cardiogenic Pulmonary Edema, Pneumonia and Lung Neoplasia
title_sort lung ultrasound for imaging of b lines in dogs and cats a prospective study investigating agreement between three types of transducers and the accuracy in diagnosing cardiogenic pulmonary edema pneumonia and lung neoplasia
topic agreement beyond chance
linear transducer
lung ultrasonography
microconvex
phased array transducer
small animals
url https://www.mdpi.com/2076-2615/11/11/3279
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