-transparent.png){kind=logo}
Doppler ultrasound (DU) with angiographic correlation was performed in 19 hypertensive renal transplant recipients suspected for transplant artery stenosis. DU included calculation of the intrarenal resistive index (RI) and measurement of the maximum systolic velocity in the transplant artery. All 10 cases having a pathologically low RI (< or = 0.6) had a > or = 50% stenosis; specificity and positive predictive values were thus 100%. There were 5 false-negative diagnoses, sensitivity 67%. The measurement of maximum systolic velocity was feasible in only 15 cases (79%). Using a cut-off point of 2 m/s the sensitivity was 91% and there were 4 false-positive cases and one false-negative case. Balloon percutaneous transluminal angioplasty (PTA) was performed in 13 cases, of which 9 were successful. In all successful cases RI was < 0.6 after PTA. We conclude that low RI (< 0.6) is highly suggestive for transplant artery stenosis. RI may serve as an indicator of the hemodynamic success of PTA.
O Saarinen, and
K Salmela, and
J Edgren
September 1995,
Clinical radiology,
O Saarinen, and
K Salmela, and
J Edgren
December 1994,
Bildgebung = Imaging,
O Saarinen, and
K Salmela, and
J Edgren
January 2008,
Transplantation proceedings,
O Saarinen, and
K Salmela, and
J Edgren
February 1997,
Pediatric nephrology (Berlin, Germany),
O Saarinen, and
K Salmela, and
J Edgren
January 2000,
Ultrasound in medicine & biology,
O Saarinen, and
K Salmela, and
J Edgren
October 1994,
Radiology,
O Saarinen, and
K Salmela, and
J Edgren
September 1994,
Radiology,
O Saarinen, and
K Salmela, and
J Edgren
March 1994,
Radiology,
O Saarinen, and
K Salmela, and
J Edgren
April 1987,
AJR. American journal of roentgenology,
O Saarinen, and
K Salmela, and
J Edgren
March 2007,
Nephrology, dialysis, transplantation : official publication of the European Dialysis and Transplant Association - European Renal Association,
