title: [The importance of Doppler ultrasonographic evaluation of the ureteral jets in patients with obstructive upper urinary tract lithiasis].
abstract: BACKGROUND
  The practical significance of ureteral jets variance still remains a controversial issue. The aim of this study was to determine the place of this parameter in upper urinary tract pathology diagnosis.
  
  
  METHODS
  Between January 2003 and January 2008, we evaluated 431 patients with upper urinary lithiasis and 79 healthy volunteers. Ureteral jets and renal resistive index were evaluated by Doppler color, Doppler pulse and 3D ultrasonographic modules.
  
  
  RESULTS
  280 patients presented Ist to IIIrd degree hydronephrosis. 76.1% of them didn't present ipsilateral ureteral jets at Doppler ultrasonography and 91% had a resistive index higher than 0.7. In patients without hydronephrosis, the ureteral jets were present in 78.8% of the cases, their velocity being reduced by 30-50% by comparison to the contralateral part. In this group, the resistive index was smaller than 0.7 in 81.4% of the cases.
  
  
  CONCLUSIONS
  Ureteral jets analysis (morphology, velocity) may be useful as part of the diagnosis protocol of upper urinary tract lithiasis.
authors.affiliation: Clinica de Urologie, Spitalul Clinic de Urgenţă "Sfântul loan", Bucureşti. victorcauni@yahoo.com
authors.forename: V
authors.initials: V
authors.lastname: Cauni
authors.forename: R
authors.initials: R
authors.lastname: Mulţescu
authors.forename: P
authors.initials: P
authors.lastname: Geavlete
authors.forename: B
authors.initials: B
authors.lastname: Geavlete
mesh_terms: D005500:Follow-Up Studies; D006801:Humans; D006869:Hydronephrosis / Q000000981:diagnostic imaging / Q000209:etiology; D007669:Kidney Calculi / Q000150:complications / Q000000981:diagnostic imaging; D011237:Predictive Value of Tests; D012189:Retrospective Studies; D012680:Sensitivity and Specificity; D012720:Severity of Illness Index; D018608:Ultrasonography, Doppler / Q000379:methods*; D018615:Ultrasonography, Doppler, Color; D018616:Ultrasonography, Doppler, Duplex; D018617:Ultrasonography, Doppler, Pulsed; D014514:Ureteral Calculi / Q000150:complications* / Q000000981:diagnostic imaging* / Q000503:physiopathology; D014517:Ureteral Obstruction / Q000150:complications / Q000000981:diagnostic imaging* / Q000209:etiology* / Q000503:physiopathology; D014563:Urodynamics