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首页> 外文期刊>Journal of Veterinary Research >Haemodynamics imaging of swine segmental kidney artery using duplex Doppler technique
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Haemodynamics imaging of swine segmental kidney artery using duplex Doppler technique

机译：双相多普勒技术猪节段肾动脉的血流动力学成像

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Introduction: The aim of the study was to assess the usefulness of duplex Doppler to objectify swine renal arterial flow in physiological conditions. The pig kidney was selected for its morphological similarities to the human and for the results therefore offering data to wider research. Material and Methods: Six White Large x Landrace sows, of 48.5-53 kg b.w. were used. Vascular flow parameters were acquired with a convex probe USG device with a duplex Doppler function using pulsed waves (frequency range of 5-7.5 MHz). Segmental kidney arterial flow was measured. Results: The RI values were within the 0.57 (min) to 0.6 (max) range, (x) over bar (RI) was 0.58 (+/- 0.014), and the SD2 value was 0.0002. The PI index values ranged from 1.21 (min) to 1.3 (max), and (x) over bar (PI) was 1.24 (+/- 0.035). The value of SD2 was 0.00123. In the S/D index, the results fell between 2.2 (min) and 2.49 (max), with (x) over bar (S/D) of 2.29 (+/- 0.117). The value of variance SD2 was 0.0139. A double analysis of correlation between indices showed this to be almost certain and highly positive as confirmed by high correlation coefficients: r (RI & RI) 0.857, rho (RI & RI )0.739, r (RI & S/D) 0.930, rho (RI & S/D)) 0.941, r (PI & S/D) 0.913, and rho (PI & S/D) 0.754. The segmental kidney arterial flow spectrum evinced falls in PSV and PSV/LDV ratio, also noticed in the filling of the spectral window, comparing the renal to an interlobar artery. Conclusion: Swine were selected because of renal anatomical and haemodynamic similarity to humans. The most relevant values and indices approximated those in humans. The study anaesthetic protocol had a minor influence on the average RI, PI, and S/D indices.
机译：介绍：该研究的目的是评估双相多普勒在生理条件下木质肾动脉流动的有用性。选择猪肾脏与人类的形态相似，并为结果提供更广泛的研究。材料和方法：六艘白色大X兰斯母猪，为48.5-53千克B.W.被使用了。使用具有双工波浪（5-7.5MHz的频率范围）的具有双工多普勒函数的凸探针USG器件来获取血管流量参数。测量节段性肾动脉流动。结果：R 1值在0.57（min）至0.6（最大）范围内，（X）上方（RI）为0.58（+/- 0.014），SD2值为0.0002。 PI索引值范围为1.21（min）至1.3（最大），（x）上方（pi）为1.24（+/- 0.035）。 SD2的值为0.00123。在S / D索引中，结果下降了2.2（分钟）和2.49（最大值），（x）在2.29（+/- 0.117）的条形上（s / d）。方差SD2的值为0.0139。双重分析索引之间的相关性显示出几乎是一定且高度阳性的，如高相关系数的确认：R（RI＆RI）0.857，RHO（RI＆RI）0.739，R（RI＆S / D）0.930，RHO （RI＆S / D））0.941，R（PI和S / D）0.913和RHO（PI和S / D）0.754。在填充光谱窗口的填充中，分段肾动脉流动谱落入pSV和PSV / LDV比中，将肾与间隙动脉进行比较。结论：由于肾脏解剖和血液动力学相似性与人类而入选猪。最相关的值和指数近似于人类。研究麻醉方案对平均RI，PI和S / D指数产生了微小的影响。

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