title: [Renal transplant rejection. Role of color Doppler sonography and comparative evaluation of fluorometric and bioptic results].
abstract: BACKGROUND
  Aim of this work is to evaluate the morphological changes of the waveforms found in the parenchyma of the renal transplant rejection, establishing the prognostic significance.
  
  
  METHODS
  46 patients with symptomatic renal allograft underwent color Doppler ultrasound examination. The ultrasound characteristics were evaluated. The Resistive Index (RI), the morphological waveforms (divided into two groups: group A with regular waveforms, group B with irregular waveforms). Color Doppler pattern (R.I. and waveforms) were compared to histological and cytological specimens and to mean values of creatinine before and after therapy.
  
  
  RESULTS
  In group A, the creatinine values varied between the start of rejection symptoms and after some days, giving a significant statistic result. Group B didn't show any important variations. The RI mean value was higher in group B. Significant results concerning correlation between Doppler parameters and histological specimens were not observed.
  
  
  CONCLUSIONS
  The conclusion is drawn that in renal transplant rejection it is important to keep in mind also the variation of the waveforms to establish the clinical prognosis.
authors.affiliation: II Cattedra di Radiologia, Policlinico Umberto I, Università degli Studi di Roma La Sapienza.
authors.forename: F M
authors.initials: FM
authors.lastname: Drudi
authors.forename: F
authors.initials: F
authors.lastname: Manganaro
authors.forename: F
authors.initials: F
authors.lastname: Trenta
authors.forename: A
authors.initials: A
authors.lastname: Mander
authors.forename: R
authors.initials: R
authors.lastname: Cianci
authors.forename: V
authors.initials: V
authors.lastname: Faraglia
authors.forename: R
authors.initials: R
authors.lastname: Pretagostini
mesh_terms: D001706:Biopsy; D005470:Fluorometry; D006084:Graft Rejection; D006801:Humans; D016030:Kidney Transplantation; D018615:Ultrasonography, Doppler, Color
vernacular_title: Il rigetto renale. Ruolo dell'eco color Doppler e valutazione comparativa dei risultati flussimetrici e bioptici.