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J Vet Sci 2018; 19(5): 660-666  https://doi.org/10.4142/jvs.2018.19.5.660
Usefulness of transthoracic lung ultrasound for the diagnosis of mild pneumothorax
Tae Sung Hwang1, Young Min Yoon1, Dong In Jung1, Seong Chan Yeon2, Hee Chun Lee1,*
1Institute of Animal Medicine, College of Veterinary Medicine, Gyeongsang National University, Jinju 52828, Korea
2College of Veterinary Medicine, Seoul National University, Seoul 08826, Korea
Correspondence to: Tel: +82-55-772-2356; Fax: +82-55-772-2330; E-mail: lhc@gnu.ac.kr
Received: January 12, 2018; Revised: May 29, 2018; Accepted: July 2, 2018; Published online: September 30, 2018.
The aim of the present study was to investigate the diagnostic accuracy of ultrasonography in the detection of mild pneumothorax using computed tomography (CT) in dogs. Nine adult healthy beagles were included in the study. A thoracic tube was inserted into pleural space at the left thoracic wall, and each dog underwent the examinations in the order of CT, lung ultrasonography, and radiography before the infusion of room air into the pleural space. Two, 3, and 5 mL/kg infusions of room air were sequentially introduced into the pleural space and CT, lung ultrasound, and radiography examinations were performed. Sonographic signs included A-lines, stratosphere, lung sliding, lung point, lung pulse, and reverse sliding signs. Radiographs were evaluated for the absence or presence of a pneumothorax. Lung ultrasound results were more accurate than radiography results for the detection of mild pneumothorax. The overall sensitivity of the sonographic reverse sliding sign was higher than that of other sonographic signs, and its specificity was 100% for detection of mild pneumothorax. Thus, the reverse sliding sign is useful when using lung ultrasonography for diagnosis of mild pneumothorax.
Keywords: dogs, lung ultrasonography, pneumothorax, reverse sliding sign

© 2018 The Korean Society of Veterinary Science.

This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/4.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.