Quantitative estimation of renal blood flow by power Doppler ultrasonography in renovascular hypertensive dogs Tetsumasa Miyajima, Hiroshi Yokoyama,

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Quantitative estimation of renal blood flow by power Doppler ultrasonography in renovascular hypertensive dogs Tetsumasa Miyajima, Hiroshi Yokoyama, Hiroshi Taira, Yuji Tsuji Kidney International Volume 68, Issue 6, Pages 2781-2786 (December 2005) DOI: 10.1111/j.1523-1755.2005.00749.x Copyright © 2005 International Society of Nephrology Terms and Conditions

Figure 1 (A) Correlation between renal arterial blood flow and renal cortical blood flow. (B) Correlation between renal cortical blood flow and mean pixel intensity (r = 0.878, P < 0.0001). (C) Correlation between renal cortical blood flow and power signal ratio (r = 0.873, P < 0.0001). Kidney International 2005 68, 2781-2786DOI: (10.1111/j.1523-1755.2005.00749.x) Copyright © 2005 International Society of Nephrology Terms and Conditions

Figure 2 Effects of captopril (closed square) or sodium nitroprusside (open square) on mean arterial blood pressure. Values are mean ± SEM. *P < 0.05 vs. before captopril (expressed as 0 min). **P < 0.05 vs. before sodium nitroprusside (expressed as 0 min). Kidney International 2005 68, 2781-2786DOI: (10.1111/j.1523-1755.2005.00749.x) Copyright © 2005 International Society of Nephrology Terms and Conditions

Figure 3 Effects of captopril on mean pixel intensity (A) and power signal ratio (B) in clipped (closed triangle) and non-clipped (open circle) kidney. Values are mean ± SEM of data for six dogs. *, **P < 0.05 vs. before captopril (expressed as 0 min). Kidney International 2005 68, 2781-2786DOI: (10.1111/j.1523-1755.2005.00749.x) Copyright © 2005 International Society of Nephrology Terms and Conditions

Figure 4 Effects of captopril or sodium nitroprusside on plasma renin activity before (open bar) and 60 minutes after (closed bar). Values are mean ± SEM. *P < 0.05 vs. before captopril or sodium nitroprusside. Kidney International 2005 68, 2781-2786DOI: (10.1111/j.1523-1755.2005.00749.x) Copyright © 2005 International Society of Nephrology Terms and Conditions

Figure 5 Effects of sodium nitroprusside on mean pixel intensity (A) and power signal ratio (B) in clipped (closed triangle) and non-clipped (open circle) kidney. Values are mean ± SEM. No significant change was observed. Kidney International 2005 68, 2781-2786DOI: (10.1111/j.1523-1755.2005.00749.x) Copyright © 2005 International Society of Nephrology Terms and Conditions