a 16-month-old holstein heifer with a history of anorexia and respiratory distress was referred to the veterinary research and teaching hospital of tehran university. heart and lung sounds were inaudible on the left side but greatly increased on the right side. on electrocardiography (ecg), decreased amplitudes of ecg parameters were observed. ultrasonography results revealed a pleural effusion...

a one-month-old male terrier dog was referred in shock status with a history of anorexia, tachypnea, abdominal distention and progressive weight loss. auscultation of right side of the lungs found enhanced respiratory noises. the thorough auscultation of the opposite side of the chest revealed the presence of typical intestinal sounds. cardiac auscultation revealed muffled heart sounds and a di...

© 2015 ETRI Journal, Volume 37, Number 4, August 2015 http://dx.doi.org/10.4218/etrij.15.0114.1447 Heart sounds are the main obstacle in lung sound analysis. To tackle this obstacle, we propose a diagnosis algorithm that uses singular spectrum analysis (SSA) and frequency features of heart and lung sounds. In particular, we introduce a frequency coefficient that shows the frequency difference b...