Evaluation of liver stiffness in a population of client owned healthy dogs using two-dimensional shear wave elastography: intraobserver reliability

IF 0.2 4区 农林科学 Q4 VETERINARY SCIENCES Vlaams Diergeneeskundig Tijdschrift Pub Date : 2023-04-21 DOI:10.21825/vdt.86338
M. Toom, J. Saunders, L. Duchateau, H. de Rooster, N. Devriendt, E. Stock
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Abstract

Sonoelastographic techniques can complement conventional grey-scale and Doppler ultrasonography by evaluating tissue elasticity, which has the prospect to provide differentiation between malignant and benign conditions. Both technical and patient-related confounding factors are known to influence the reliability and reproducibility of elastographic methods. Therefore, the study was designed to assess liver stiffness in a diverse population of client-owned healthy dogs, evaluate the effect of patient characteristics on the elastography measurements and to assess intraobserver reliability. A total of forty dogs underwent two-dimensional shear wave elastography (2D SWE) twice, performed by the same operator, one to six days apart. The average, median and maximum 2D SWE velocities for the linear probe were 2.50 +/- 0.067 m/s; 2.46 +/- 0.067 m/s; 3.58 +/- 0.13 m/s, respectively, and for the convex probe 0.99 +/- 0.11 m/s; 0.98 +/- 0.12 m/s and 1.34 +/- 0.21 m/s, respectively. No statistically significant effect (P> 0.05) on the 2D SWVs was seen of the dog-related characteristics sex, age, body weight and body condition score. The intraobserver agreement of 2D SWE was moderate with the intraclass correlation coefficient (ICC) for the average, median and maximum 2D SWE being 0.69; 0.71 and 0.74, respectively. The moderate ICC and discrepant results obtained with different probes mandates standardization of patient-related and technical factors to overcome excessive variability in measurements in order to implement this technique in clinical practice.
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使用二维横波弹性成像评估客户健康犬的肝脏硬度:观察者内可靠性
超声弹性成像技术可以通过评估组织弹性来补充传统的灰度和多普勒超声检查,从而有可能提供恶性和良性疾病的区分。已知技术和患者相关的混杂因素都会影响弹性成像方法的可靠性和可重复性。因此,本研究旨在评估不同客户拥有的健康犬的肝脏硬度,评估患者特征对弹性成像测量的影响,并评估观察者内的可靠性。共有40只狗接受了两次二维横波弹性成像(2D SWE),由同一操作员进行,间隔1至6天。线性探针的平均、中位数和最大二维SWE速度为2.50 +/- 0.067 m/s;2.46 +/- 0.067 m/s;为3.58 +/- 0.13 m/s,凸探头为0.99 +/- 0.11 m/s;分别为0.98±0.12 m/s和1.34±0.21 m/s。性别、年龄、体重、体况评分对二维swv无显著影响(P> 0.05)。2D SWE的观察者内一致性中等,2D SWE的平均、中位数和最大值的类内相关系数(ICC)为0.69;0.71和0.74。不同探针获得的中度ICC和差异结果要求标准化患者相关因素和技术因素,以克服测量中的过度变异性,以便在临床实践中实施该技术。
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来源期刊
Vlaams Diergeneeskundig Tijdschrift
Vlaams Diergeneeskundig Tijdschrift 农林科学-兽医学
CiteScore
0.40
自引率
0.00%
发文量
29
审稿时长
>36 weeks
期刊介绍: The Vlaams Diergeneeskundig Tijdschrift (ISSN 0303-9021) is a scientific journal that is published bimonthly (six issues per year). It presents mainly clinical topics and addresses itself to two very different readerships: the local Dutch speaking veterinarians in Belgium and the Netherlands, and the international veterinary and biomedical research community. Each issue contains scientific papers either in English, or in Dutch with an English abstract.
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