[Evaluation of renal vascularization using amplitude-coded Doppler ultrasound].
OBJECTIVE
To evaluate the benefit of "Colour Doppler Energy" (CDE) or "Power Doppler" applications in healthy kidneys and in renal disease including paediatric assessment.


METHODS
Ten healthy volunteers (range: neonate to adults) were studied using conventional colour Doppler sonography (CDS) and CDE in order to evaluate the visibility of intrarenal vasculature. In addition, ten children and ten adults with known renal disease were evaluated. The findings were compared to clinical, scintigraphic and biopsy results.


RESULTS
CDE showed far better visualisation of intrarenal vasculature than CDS. CDE demonstrated focal and diffuse reduced cortical perfusion with an overall accuracy of 95% and a sensitivity of 88%. In 7 healthy volunteers cortical vasculature was visualised throughout the kidney. In 3 infants incomplete visualisation was obtained because of motion artifacts. In the diseased kidneys, CDE findings correlated well with clinical findings, scintigraphy results and biopsy findings.


CONCLUSIONS
CDE can be successfully applied to adults and infants demonstrating renal vasculature in healthy kidneys and in kidneys with focally or diffusely altered perfusion.
Riccabona
M
M
LKH, Univ.-Kliniken Graz, Univ. Klinik für Radiologie.
Preidler
K
K
Szolar
D
D
Schwinger
W
W
Ring
E
E
Sorantin
E
E
Aigner
R
R
D000293:Adolescent; D000328:Adult; D016477:Artifacts; D001783:Blood Flow Velocity / Q000502:physiology; D002648:Child; D002675:Child, Preschool; D004867:Equipment Design; D006801:Humans; D007091:Image Processing, Computer-Assisted / Q000295:instrumentation; D007223:Infant; D007231:Infant, Newborn; D007511:Ischemia / Q000000981:diagnostic imaging* / Q000209:etiology; D007668:Kidney / Q000098:blood supply*; D007672:Kidney Cortex / Q000098:blood supply; D007674:Kidney Diseases / Q000000981:diagnostic imaging* / Q000209:etiology; D016030:Kidney Transplantation / Q000502:physiology; D011183:Postoperative Complications / Q000000981:diagnostic imaging / Q000209:etiology; D012016:Reference Values; D015203:Reproducibility of Results; D018608:Ultrasonography, Doppler / Q000295:instrumentation*
Beurteilung der renalen Vaskularisation mittels amplitudenkodierter Dopplersonographie.