CT and radiographic evaluation of bronchial collapsibility at forced expiration in asymptomatic brachycephalic dogs

• DOI: 10.1111/vru.12829
• Publication Date: 2020-01-02T23:03:01Z
• Authors: Hyounglok Yoon; Jin Yu; Gayeon An; Sohyun Bang; Dohoon Kwon; Hyunryung Kim; Hanbin Lee; Jinhwa Chang; Dongwoo Chang
• Keywords: Beagle; Expiration; Tracheobronchomalacia; Vital capacity

Bronchial collapse due to bronchomalacia is an important cause of chronic coughing in dogs. Radiographic and CT evidence bronchial has previously been reported healthy Beagle dogs under forced expiration. However, published studies brachycephalic dog breeds that are prone currently lacking. In the present prospective analytical experimental study, radiography were used measure diameter collapsibility each pulmonary bronchus during end-expiratory, 5 mL/kg forced-expiratory, 10 forced-expiratory phases 17 asymptomatic six was significantly greater expiration, than at end expiration both groups (P < .001). measurements left lung lobes right cranial, middle, accessory higher those dogs, all expiratory .05). The also supported using multiplanar reconstruction images radiography. conclusion, radiographic measures Therefore, should not be evaluated same baseline as for