title: Can we renounce performing the intravenous urography in the preoperative evaluation for ESWL treatment?
abstract: OBJECTIVE
  Our aim was to perform a comparative study between IVP (Intra Venous Pyelography) and Doppler US (Ultras Sound) in assessing the normal renal function. The US assessment of the normal renal function consisted in the evaluation of ureteral flux.
  
  
  METHODS
  The group of patients consisted in 79 patients with small size urinary stones (5-12 mm). Among them, 58 patients had pelvic stones and 21 patients had ureteral stones. The ultrasound system used in our study was a B&K Medical Panther 2002 equipped with a 3.5 MHz transducer.
  
  
  RESULTS
  The sensibility in detecting ureteral flux in patients with pelvic stones and normal IVP was 100%. The sensibility in detecting uretheral flux in ureteral stones with IVP aspect of hydronephrosis was 65%.
  
  
  CONCLUSIONS
  In cases of normal aspect of IVP the presence of uretheral flux assessed by ultrasound could substitute the IVP in the preoperative evaluation for ESWL treatment. In cases of hydronephrotic aspect of IVP, the concordance between results based on IVP and those based on Doppler US in good enough for proposing the Doppler US evaluation of renal function in obstructive stones as a new diagnostic imaging modality. Doppler US could be the method of choice for renal function pre ESWL evaluation mainly for patients with known intolerance to contrast media.
authors.affiliation: Clinical Hospital Th. Burghele, Bucharest, Romania. aproiect@itcnet.ro
authors.forename: Marina
authors.initials: M
authors.lastname: Budau
authors.forename: Ionut
authors.initials: I
authors.lastname: Chira
authors.forename: Valentin
authors.initials: V
authors.lastname: Ambert
authors.forename: Mircea
authors.initials: M
authors.lastname: Pascu
authors.forename: Marius
authors.initials: M
authors.lastname: Radu
authors.forename: Mihaela
authors.initials: M
authors.lastname: Onu
authors.forename: Tiberiu
authors.initials: T
authors.lastname: Pop
authors.forename: Stelian
authors.initials: S
authors.lastname: Persu
authors.forename: Mircea
authors.initials: M
authors.lastname: Popescu
authors.forename: Bogdan
authors.initials: B
authors.lastname: Braticevici
mesh_terms: D003287:Contrast Media / Q000008:administration & dosage; D003955:Diagnostic Tests, Routine; D006801:Humans; D006869:Hydronephrosis / Q000000981:diagnostic imaging / Q000209:etiology; D007275:Injections, Intravenous; D007682:Kidney Pelvis / Q000000981:diagnostic imaging; D008096:Lithotripsy / Q000295:instrumentation; D011300:Preoperative Care; D012680:Sensitivity and Specificity; D018608:Ultrasonography, Doppler; D019564:Unnecessary Procedures; D014513:Ureter / Q000000981:diagnostic imaging; D014545:Urinary Calculi / Q000000981:diagnostic imaging* / Q000628:therapy; D014567:Urography
chemical_list: D003287:Contrast Media