Feasibility of radial and circumferential strain analysis using 2D speckle tracking echocardiography in cats

The purpose of the present study is to investigate the feasibility of strain analysis using speckle tracking echocardiography (STE) in cats and to evaluate STE variables in cats with hypertrophic cardiomyopathy (HCM). Sixteen clinically healthy cats and 17 cats with HCM were used. Radial and circumf...

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Bibliographic Details
Published in:	Journal of Veterinary Medical Science Vol. 77; no. 2; pp. 193 - 201
Main Authors:	TAKANO, Hiroshi, ISOGAI, Tomomi, AOKI, Takuma, WAKAO, Yoshito, FUJII, Yoko
Format:	Journal Article
Language:	English
Published:	Japan JAPANESE SOCIETY OF VETERINARY SCIENCE 01-02-2015 Japan Science and Technology Agency The Japanese Society of Veterinary Science
Subjects:	Animals Cardiomyopathy, Hypertrophic - pathology Cardiomyopathy, Hypertrophic - veterinary Cat Diseases - pathology Cats Echocardiography - methods Echocardiography - veterinary feline hypertrophic cardiomyopathy Female Heart - physiology Internal Medicine left ventricle Male
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Summary:	The purpose of the present study is to investigate the feasibility of strain analysis using speckle tracking echocardiography (STE) in cats and to evaluate STE variables in cats with hypertrophic cardiomyopathy (HCM). Sixteen clinically healthy cats and 17 cats with HCM were used. Radial and circumferential strain and strain rate variables in healthy cats were measured using STE to assess the feasibility. Comparisons of global strain and strain variables between healthy cats and cats with HCM were performed. Segmental assessments of left ventricle (LV) wall for strain and strain rate variables in cats with HCM were also performed. As a result, technically adequate images were obtained in 97.6% of the segments for STE analysis. Sedation using buprenorphine and acepromazine did not affect any global strain nor strain rate variable. In LV segments of cats with HCM, reduced segmental radial strain and strain rate variables had significantly related with segmental LV hypertrophy. It is concluded that STE analysis using short axis images of LV appeared to be clinically feasible in cats, having the possibility to be useful for detecting myocardial dysfunctions in cats with diseased heart.
Bibliography:	ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23
ISSN:	0916-7250 1347-7439
DOI:	10.1292/jvms.13-0241