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Doppler sonography in the diagnosis of antepartum pyelonephritis: value of intrarenal resistive index measurements.

Publication ,  Journal Article
Keogan, MT; Hertzberg, BS; Kliewer, MA; DeLong, DM; Paulson, EK; Carroll, BA
Published in: J Ultrasound Med
January 1996

This study aims to define the effects of pyelonephritis on intrarenal resistive indices and to determine the role of Doppler sonography in the diagnosis of pyelonephritis in pregnant patients. Twenty pregnant women with pyelonephritis underwent renal Doppler sonography with calculation of intrarenal resistive indices. The resistive index was calculated for the upper, lower, and interpolar areas of each kidney in the patients with pyelonephritis (40 kidneys) and was compared to the resistive indices for a control group of 153 normal asymptomatic pregnant women (306 kidneys). Doppler findings were correlated with the location (sidedness) of flank pain in the pyelonephritis group. The mean resistive index values of patients with pyelonephritis were 0.04 higher than in the controls, and this difference was statistically significant (P < 0.001). Four patients with pyelonephritis had a mean resistive index > or = 0.70, whereas the remaining 16 patients had resistive indices within the normal range of < or = 0.70. In patients with confirmed pyelonephritis and unilateral pain, the average resistive index in the kidney on the side of pain was 0.03 greater than that on the asymptomatic side (P = < 0.01). The mean renal resistive index is significantly greater in pregnant patients with pyelonephritis than in pregnant women without pyelonephritis. Even so, the magnitude of the differences in resistive index is too small and the overlap between the groups too large for this parameter to be of discriminating clinical value.

Duke Scholars

Published In

J Ultrasound Med

ISSN

0278-4297

Publication Date

January 1996

Volume

15

Issue

1

Start / End Page

13 / 17

Location

England

Related Subject Headings

  • Vascular Resistance
  • Ultrasonography, Doppler, Color
  • Ultrasonography, Doppler
  • Sensitivity and Specificity
  • Renal Circulation
  • Renal Artery
  • Pyelonephritis
  • Pregnancy Complications
  • Pregnancy
  • Pain
 

Citation

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MLA
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Keogan, M. T., Hertzberg, B. S., Kliewer, M. A., DeLong, D. M., Paulson, E. K., & Carroll, B. A. (1996). Doppler sonography in the diagnosis of antepartum pyelonephritis: value of intrarenal resistive index measurements. J Ultrasound Med, 15(1), 13–17.
Keogan, M. T., B. S. Hertzberg, M. A. Kliewer, D. M. DeLong, E. K. Paulson, and B. A. Carroll. “Doppler sonography in the diagnosis of antepartum pyelonephritis: value of intrarenal resistive index measurements.J Ultrasound Med 15, no. 1 (January 1996): 13–17.
Keogan MT, Hertzberg BS, Kliewer MA, DeLong DM, Paulson EK, Carroll BA. Doppler sonography in the diagnosis of antepartum pyelonephritis: value of intrarenal resistive index measurements. J Ultrasound Med. 1996 Jan;15(1):13–7.
Keogan, M. T., et al. “Doppler sonography in the diagnosis of antepartum pyelonephritis: value of intrarenal resistive index measurements.J Ultrasound Med, vol. 15, no. 1, Jan. 1996, pp. 13–17.
Keogan MT, Hertzberg BS, Kliewer MA, DeLong DM, Paulson EK, Carroll BA. Doppler sonography in the diagnosis of antepartum pyelonephritis: value of intrarenal resistive index measurements. J Ultrasound Med. 1996 Jan;15(1):13–17.

Published In

J Ultrasound Med

ISSN

0278-4297

Publication Date

January 1996

Volume

15

Issue

1

Start / End Page

13 / 17

Location

England

Related Subject Headings

  • Vascular Resistance
  • Ultrasonography, Doppler, Color
  • Ultrasonography, Doppler
  • Sensitivity and Specificity
  • Renal Circulation
  • Renal Artery
  • Pyelonephritis
  • Pregnancy Complications
  • Pregnancy
  • Pain