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Echocardiographic assessment of coronary artery flow in normal canines and model dogs with myocardial infarction.

Authors
  • Park, Nohwon1
  • Kim, Jaehwan
  • Lee, Miyoung
  • Lee, Soyun
  • Song, Sunhye
  • Lee, Seungjun
  • Kim, Soyoung
  • Park, Yangwoo
  • Eom, Kidong
  • 1 Department of Veterinary Radiology and Diagnostic Imaging, College of Veterinary Medicine, Konkuk University, Seoul 143-701, Korea. , (North Korea)
Type
Published Article
Journal
Journal of veterinary science
Publication Date
Jan 01, 2014
Volume
15
Issue
1
Pages
149–155
Identifiers
PMID: 23820197
Source
Medline
Keywords
License
Unknown

Abstract

This study was conducted to evaluate the usefulness of coronary arterial profiles from normal dogs (11 animals) and canines (six dogs) with experimental myocardial infarction (MI) induced by ligation of the left coronary artery (LCA). Blood velocity of the LCA and right coronary artery (RCA) were evaluated following transthoracic pulsed-wave Doppler echocardiography. The LCA was observed as an infundibular shape, located adjacent to the sinus of Valsalva. The RCA appeared as a tubular structure located 12 o'clock relative to the aorta. In normal dogs, the LCA and RCA mean peak diastolic velocities were 20.84 ± 3.24 and 19.47 ± 2.67 cm/sec, respectively. The LCA and RCA mean diastolic deceleration times were 0.91 ± 0.14 sec and 1.13 ± 0.20 sec, respectively. In dogs with MI, the LCA had significantly (p < 0.01) lower peak velocities (14.82 ± 1.61 cm/sec) than the RCA (31.61 ± 2.34 cm/sec). The RCA had a significantly (p < 0.01) rapid diastolic deceleration time (0.71 ± 0.06 sec) than that found in the LCA (1.02 ± 0.22 sec) of MI dogs. In conclusion, these profiles may serve as a differential factor for evaluating cardiomyopathy in dogs.

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