Repeatability and reproducibility of right ventricular Tei index valves derived from three echocardiographic methods for evaluation of cardiac function in dogs
Objective: To evaluate repeatability and reproducibility of right ventricular Tei index (RTX) values derived from dual pulsed-wave Doppler, conventional pulsed-wave Doppler, and tissue Doppler echocardiography and to investigate relationships and repeatability among the 3 methods in healthy dogs....
| Main Authors: | , , , , , , , |
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| Format: | Article |
| Language: | English |
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American Veterinary Medical Association
2016
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| Online Access: | http://psasir.upm.edu.my/id/eprint/52860/ http://psasir.upm.edu.my/id/eprint/52860/1/Repeatability%20and%20reproducibility%20of%20right%20ventricular%20Tei%20index%20valves%20derived%20from%20three%20echocardiographic%20methods%20for%20evaluation%20of%20cardiac%20function%20in%20dogs.pdf |
| _version_ | 1848852164697391104 |
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| author | Morita, Tomoya Nakamura, Kensuke Osuga, Tatsuyuki Lim, Sue Yee Yokoyama, Nozomu Morishita, Keitaro Ohta, Hiroshi Takiguchi, Mitsuyoshi |
| author_facet | Morita, Tomoya Nakamura, Kensuke Osuga, Tatsuyuki Lim, Sue Yee Yokoyama, Nozomu Morishita, Keitaro Ohta, Hiroshi Takiguchi, Mitsuyoshi |
| author_sort | Morita, Tomoya |
| building | UPM Institutional Repository |
| collection | Online Access |
| description | Objective: To evaluate repeatability and reproducibility of right ventricular Tei index (RTX) values derived from dual pulsed-wave Doppler, conventional pulsed-wave Doppler, and tissue Doppler echocardiography and to investigate relationships and repeatability among the 3 methods in healthy dogs.
Animals: 6 healthy adult Beagles.
Procedure: Echocardiography was performed on each dog on different days for 2 weeks (3 times/d) by 2 echocardiographers. Intraobserver within- and between-day and interobserver coefficients of variation (CVs) and intraclass correlation coefficients (ICCs) for RTXs derived from dual pulse-waved Doppler (RTXDPD), conventional pulsed-wave Doppler (RTXPD), and tissue Doppler (RTXTD) methods were determined. Degrees of agreement among RTX values derived from the 3 methods were assessed by modified Bland-Altman analysis.
Results: Least squares mean (95% confidence interval) RTXtd was 0.50 (0.46 to 0.54), which was significantly higher than that for RTXDPD (0.27 [0.23 to 0.31]) and RTXPD (0.25 [0.21 to 0.29]). Agreement between RTXDPD and RTXPD was good (bias [mean difference], 0.04 [95% confidence interval, −0.03 to 0.10]). The RTXdpd had high within-day (CV, 6.1; ICC, 0.77) and interobserver (CV, 3.5; ICC, 0.83) repeatability, but between-day repeatability was not high. The RTXtd had high within-day repeatability (CV, 6.0; ICC, 0.80), but between-day and interobserver repeatability were not high. Within-day, between-day, and interobserver repeatability of RTXPD were not high.
Conclusions and clinical relevance: RTXdpd measurement was a repeatable and reproducible method of cardiac evaluation in healthy dogs. The RTXTD values were significantly higher than the RTXDPD and RTXPD values; therefore, RTX values derived from different echocardiographic methods should be interpreted with caution. |
| first_indexed | 2025-11-15T10:33:44Z |
| format | Article |
| id | upm-52860 |
| institution | Universiti Putra Malaysia |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-15T10:33:44Z |
| publishDate | 2016 |
| publisher | American Veterinary Medical Association |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | upm-528602021-12-01T06:20:44Z http://psasir.upm.edu.my/id/eprint/52860/ Repeatability and reproducibility of right ventricular Tei index valves derived from three echocardiographic methods for evaluation of cardiac function in dogs Morita, Tomoya Nakamura, Kensuke Osuga, Tatsuyuki Lim, Sue Yee Yokoyama, Nozomu Morishita, Keitaro Ohta, Hiroshi Takiguchi, Mitsuyoshi Objective: To evaluate repeatability and reproducibility of right ventricular Tei index (RTX) values derived from dual pulsed-wave Doppler, conventional pulsed-wave Doppler, and tissue Doppler echocardiography and to investigate relationships and repeatability among the 3 methods in healthy dogs. Animals: 6 healthy adult Beagles. Procedure: Echocardiography was performed on each dog on different days for 2 weeks (3 times/d) by 2 echocardiographers. Intraobserver within- and between-day and interobserver coefficients of variation (CVs) and intraclass correlation coefficients (ICCs) for RTXs derived from dual pulse-waved Doppler (RTXDPD), conventional pulsed-wave Doppler (RTXPD), and tissue Doppler (RTXTD) methods were determined. Degrees of agreement among RTX values derived from the 3 methods were assessed by modified Bland-Altman analysis. Results: Least squares mean (95% confidence interval) RTXtd was 0.50 (0.46 to 0.54), which was significantly higher than that for RTXDPD (0.27 [0.23 to 0.31]) and RTXPD (0.25 [0.21 to 0.29]). Agreement between RTXDPD and RTXPD was good (bias [mean difference], 0.04 [95% confidence interval, −0.03 to 0.10]). The RTXdpd had high within-day (CV, 6.1; ICC, 0.77) and interobserver (CV, 3.5; ICC, 0.83) repeatability, but between-day repeatability was not high. The RTXtd had high within-day repeatability (CV, 6.0; ICC, 0.80), but between-day and interobserver repeatability were not high. Within-day, between-day, and interobserver repeatability of RTXPD were not high. Conclusions and clinical relevance: RTXdpd measurement was a repeatable and reproducible method of cardiac evaluation in healthy dogs. The RTXTD values were significantly higher than the RTXDPD and RTXPD values; therefore, RTX values derived from different echocardiographic methods should be interpreted with caution. American Veterinary Medical Association 2016 Article PeerReviewed text en http://psasir.upm.edu.my/id/eprint/52860/1/Repeatability%20and%20reproducibility%20of%20right%20ventricular%20Tei%20index%20valves%20derived%20from%20three%20echocardiographic%20methods%20for%20evaluation%20of%20cardiac%20function%20in%20dogs.pdf Morita, Tomoya and Nakamura, Kensuke and Osuga, Tatsuyuki and Lim, Sue Yee and Yokoyama, Nozomu and Morishita, Keitaro and Ohta, Hiroshi and Takiguchi, Mitsuyoshi (2016) Repeatability and reproducibility of right ventricular Tei index valves derived from three echocardiographic methods for evaluation of cardiac function in dogs. American Journal of Veterinary Research, 77 (7). pp. 715-720. ISSN 0002-9645; ESSN: 1943-5681 https://avmajournals.avma.org/view/journals/ajvr/77/7/ajvr.77.7.715.xml 10.2460/ajvr.77.7.715 |
| spellingShingle | Morita, Tomoya Nakamura, Kensuke Osuga, Tatsuyuki Lim, Sue Yee Yokoyama, Nozomu Morishita, Keitaro Ohta, Hiroshi Takiguchi, Mitsuyoshi Repeatability and reproducibility of right ventricular Tei index valves derived from three echocardiographic methods for evaluation of cardiac function in dogs |
| title | Repeatability and reproducibility of right ventricular Tei index valves derived from three echocardiographic methods for evaluation of cardiac function in dogs |
| title_full | Repeatability and reproducibility of right ventricular Tei index valves derived from three echocardiographic methods for evaluation of cardiac function in dogs |
| title_fullStr | Repeatability and reproducibility of right ventricular Tei index valves derived from three echocardiographic methods for evaluation of cardiac function in dogs |
| title_full_unstemmed | Repeatability and reproducibility of right ventricular Tei index valves derived from three echocardiographic methods for evaluation of cardiac function in dogs |
| title_short | Repeatability and reproducibility of right ventricular Tei index valves derived from three echocardiographic methods for evaluation of cardiac function in dogs |
| title_sort | repeatability and reproducibility of right ventricular tei index valves derived from three echocardiographic methods for evaluation of cardiac function in dogs |
| url | http://psasir.upm.edu.my/id/eprint/52860/ http://psasir.upm.edu.my/id/eprint/52860/ http://psasir.upm.edu.my/id/eprint/52860/ http://psasir.upm.edu.my/id/eprint/52860/1/Repeatability%20and%20reproducibility%20of%20right%20ventricular%20Tei%20index%20valves%20derived%20from%20three%20echocardiographic%20methods%20for%20evaluation%20of%20cardiac%20function%20in%20dogs.pdf |