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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, Korea
2College of Veterinary Medicine, Seoul National University, Seoul, 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: July 20, 2018.
Abstract
The aim of present study was to investigate the diagnostic accuracy of ultrasonography features for the detection of mild pneumothorax using CT in dogs. Nine adult healthy beagles were included in the study. The thoracic tube was inserted into pleural space at the left thoracic wall. All dogs underwent the examinations in the order of CT, lung ultrasound, and radiography examinations before the infusion of room air into the pleural space. Typically, 2, 3 (total 5 ml/kg), and 5 ml/kg (total 10 ml/kg) of room air was sequentially infused into the pleural space and CT, lung ultrasound, and radiography examinations were performed, respectively. Sonographic signs included A-lines, stratosphere sign, lung sliding, lung point, lung pulse, and reverse sliding sign. The radiographs were evaluated for the absence or presence of pneumothorax. The lung ultrasound is more accurate than radiography for the detection of mild pneumothorax. Overall sensitivity of reverse sliding sign was higher than other sonographic signs and specificity was observed to be 100 % for detecting mild pneumothorax. The reverse sliding sign is useful in lung ultrasonography in diagnosing of mild pneumothorax.
Keywords: dog, lung ultrasonography, pneumothorax, reverse sliding sign


© 2018 The Korean Society of Veterinary Science.