title: The efficacy of radiographic anatomical measurement methods in predicting success after extracorporeal shockwave lithotripsy for lower pole kidney stones.
abstract: OBJECTIVE
  To assess the impact of lower pole calyceal anatomy on clearace of lower pole stones after extracorporeal shockwave lithotripsy (ESWL) by means of a new and previously defined radiographic measurement method.
  
  
  METHODS
  Sixty-four patients with solitary radiopaque lower pole kidney stones were enrolled in the study. Infundibulopelvic angle (IPA), infundibulotransverse angle (ITA), infundibular lenght(IL), and infundibular width (IW) were measured on the intravenous urographies which were taken before the procedure.
  
  
  RESULTS
  48 of 64 patients (75%) were stone-free after a follow-up period of 3 months. The IPA,ITA,IL and IW were determined as statistically significant factors, while age,gender and stone area were found to have no impact on clearance.
  
  
  CONCLUSIONS
  By the help of radiographic measurement methods related to lower pole kidney anatomy, appropriate patient selection and increment in success after ESWL may be achieved.
authors.affiliation: Istanbul Memorial Hospital, Istanbul, Turkey.
authors.forename: Emre
authors.initials: E
authors.lastname: Arpali
authors.affiliation: Urology, Turk Bobrek Vakfi Memorial Hizmet Hospital, Istanbul, Turkey.
authors.forename: Mert
authors.initials: M
authors.lastname: Altinel
authors.affiliation: Urology, Eskisehir Acibadem Hospital, Eskisehir, Turkeya.
authors.forename: Semih Yasar
authors.initials: SY
authors.lastname: Sargin
mesh_terms: D000328:Adult; D005260:Female; D006801:Humans; D007668:Kidney / Q000033:anatomy & histology*; D007669:Kidney Calculi / Q000000981:diagnostic imaging* / Q000473:pathology / Q000628:therapy*; D008096:Lithotripsy / Q000379:methods*; D008297:Male; D011859:Radiography; D012016:Reference Values; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity; D013997:Time Factors; D016896:Treatment Outcome