Contrast Echocardiography in two-dimensional left ventricular measurements: comparison with 256-row multi-detector computed tomography as a reference standard in Beagles
| Autor: | Kidong Eom, Jaehwan Kim, Yeonhea Lee, Hakyoung Yoon, Soyoung Kim |
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| Rok vydání: | 2019 |
| Předmět: |
Male
Cardiac output dogs 040301 veterinary sciences Heart Ventricles Diastole Computed tomography multidetector computed tomography Ventricular Function Left 0403 veterinary science 03 medical and health sciences Medical Imaging Reference Values medicine Contrast echocardiography Animals Systole cardiac computed tomography Reference standards 030304 developmental biology Physics 0303 health sciences left ventricular measurements General Veterinary medicine.diagnostic_test Cardiac cycle business.industry Multi detector computed tomography 04 agricultural and veterinary sciences Echocardiography Female Original Article Nuclear medicine business Tomography X-Ray Computed |
| Zdroj: | Journal of Veterinary Science |
| ISSN: | 1976-555X |
| Popis: | Unenhanced echocardiography (UE), commonly used in veterinary practice, is limited by left ventricular (LV) foreshortening and observer dependency. Contrast echocardiography (CE) was used to compare two-dimensional (2D) LV measurements made using UE and 256-row multi-detector computed tomography (MDCT) as a reference standard. Seven healthy beagle dogs were evaluated in this study. Measurements obtained using CE, including LV wall thickness, internal diameter, and longitudinal and transverse length, were significantly greater than those obtained using UE. Measurements of LV internal dimension in diastole (LVIDd) and systole (LVIDs) were significantly larger with CE compared UE. Regardless of the cardiac cycle, LV longitudinal (LVLd and LVLs) and transverse diameter (LVTDd and LVTDs) measurements were significantly different with CE and approximated values from MDCT. Among automatically calculated parameters, LV end-systolic volume and the relative wall thickness were significantly different between UE and CE. In CE, the correlation coefficients of 4 major parameters (r = 0.87 in LVIDd; 0.91 in LVIDs; 0.87 in LVLd; and 0.81 in LVLs) showed higher values compared to the UE (r = 0.68 in LVIDd, 0.71 in LVIDs, 0.69 in LVLd, and 0.35 in LVLs). Inter-observer agreement was highest for MDCT and higher for CE than UE. In conclusion, CE is more accurate and reproducible than UE in assessing 2D LV measurements and can overcome the limitations of UE including LV foreshortening and high observer dependency. |
| Databáze: | OpenAIRE |
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