title: Echocardiographic measurements of cardiac dimensions in normal ponies and horses.
abstract: Echocardiographic examinations were performed on 41 clinically normal small ponies, large ponies and horses. Using standardised two-dimensional (2-D) echocardiographic images to guide M-mode studies, the interventricular septal thickness, left ventricular internal dimension and left ventricular wall in systole and diastole, and aortic diameter in diastole were measured. Normal values for these echocardiographic dimensions were obtained across a wide range of bodyweights. Although there was a trend for echocardiographic dimensions to increase with bodyweight across the whole range of animals examined, little or no linear correlation was found between dimensions and bodyweight within the small pony, large pony and horse groups.
authors.affiliation: University of Cambridge, Department of Clinical Veterinary Medicine, UK.
authors.forename: J D
authors.initials: JD
authors.lastname: Slater
authors.forename: M E
authors.initials: ME
authors.lastname: Herrtage
mesh_terms: D000375:Aging / Q000473:pathology* / Q000502:physiology; D000818:Animals; D001835:Body Weight / Q000502:physiology; D003971:Diastole / Q000502:physiology; D004452:Echocardiography / Q000662:veterinary*; D005260:Female; D006321:Heart / Q000033:anatomy & histology* / Q000502:physiology; D006352:Heart Ventricles / Q000033:anatomy & histology / Q000000981:diagnostic imaging; D006736:Horses / Q000033:anatomy & histology* / Q000502:physiology; D008297:Male; D013599:Systole / Q000502:physiology; D016276:Ventricular Function