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

Takano H, Isogai T, Aoki T, Wakao Y, Fujii Y - J. Vet. Med. Sci. (2014)

Bottom Line: 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.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.

View Article: PubMed Central - PubMed

Affiliation: Department of Surgery 1, School of Veterinary Medicine, Azabu University, 1-17-71 Fuchinobe, Chuo-ku, Sagamihara-shi, Kanagawa 252-5201, Japan.

ABSTRACT
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.

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Related in: MedlinePlus

Images of radial strain rate of a healthy cat (A) and a cat with hypertrophic cardiomyopathy (B). SrRs, radial strain rate during systole; SrRE, radial strain rate during early diastole; SrRA, radial strain rate during late diastole.
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fig_001: Images of radial strain rate of a healthy cat (A) and a cat with hypertrophic cardiomyopathy (B). SrRs, radial strain rate during systole; SrRE, radial strain rate during early diastole; SrRA, radial strain rate during late diastole.

Mentions: The peak systolic radial and circumferential strains (SR and SC), and the peak radial and circumferential strain rates during the systole and early diastole (SrRs, SrRE, SrCs and SrCE) were measured at the level of Ct (Fig. 1Fig. 1.


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

Takano H, Isogai T, Aoki T, Wakao Y, Fujii Y - J. Vet. Med. Sci. (2014)

Images of radial strain rate of a healthy cat (A) and a cat with hypertrophic cardiomyopathy (B). SrRs, radial strain rate during systole; SrRE, radial strain rate during early diastole; SrRA, radial strain rate during late diastole.
© Copyright Policy - open-access
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC4363022&req=5

fig_001: Images of radial strain rate of a healthy cat (A) and a cat with hypertrophic cardiomyopathy (B). SrRs, radial strain rate during systole; SrRE, radial strain rate during early diastole; SrRA, radial strain rate during late diastole.
Mentions: The peak systolic radial and circumferential strains (SR and SC), and the peak radial and circumferential strain rates during the systole and early diastole (SrRs, SrRE, SrCs and SrCE) were measured at the level of Ct (Fig. 1Fig. 1.

Bottom Line: 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.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.

View Article: PubMed Central - PubMed

Affiliation: Department of Surgery 1, School of Veterinary Medicine, Azabu University, 1-17-71 Fuchinobe, Chuo-ku, Sagamihara-shi, Kanagawa 252-5201, Japan.

ABSTRACT
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.

Show MeSH
Related in: MedlinePlus