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Variability of Doppler parameters in the healthy kidney: an anatomic‐physiologic correlation.
Author(s) -
Knapp R,
Plötzeneder A,
Frauscher F,
Helweg G,
Judmaier W,
zur Nedden D,
Recheis W,
Bartsch G
Publication year - 1995
Publication title -
journal of ultrasound in medicine
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.574
H-Index - 91
eISSN - 1550-9613
pISSN - 0278-4297
DOI - 10.7863/jum.1995.14.6.427
Subject(s) - medicine , resistive index , doppler effect , resistive touchscreen , renal artery , cardiology , diastole , duplex ultrasonography , kidney , radiology , blood flow , anatomy , blood pressure , ultrasonography , physics , astronomy , electrical engineering , engineering
Contradictory results have been obtained in classifying various renal diseases when trying to use the resistive index measured by duplex Doppler technique in renoparenchymal arteries. These measurements may have been influenced by the lack of standardization of the anatomic site at which the renoparenchymal artery is sampled. To elucidate this influence, we measured the resistive index, peak systolic velocity, end diastolic velocity, and pulsatility index in 120 healthy kidneys at three different positions of the renal vasculature. The resistive index at the level of the interlobar‐arcuate arteries proved to be the parameter with the most consistent results and should be preferred in clinical applications.