title: Colour Doppler sonography of flaccid penis in evaluation of erectile dysfunction.
abstract: BACKGROUND
  Erectile dysfunction is a common and potentially treatable problem. Other than psychological, anatomical and metabolic factors, vasculogenic causes also play an important role in erectile dysfunction. Among the various diagnostic tools available for the diagnosis of vasculogenic causes, colour Doppler sonography is noninvasive, simple and promising.
  
  
  METHODS
  This preliminary prospective study was conducted on 40 patients with erectile dysfunction, coming from a rural background to a hospital situated in a semi-urban setting.
  
  
  RESULTS
  It was found that a cut-off value of 10 cm/second for peak systolic velocity in flaccid penis had the best accuracy among three chosen cut-off values, i.e. 5, 10, 15 cm/second, for detecting arterial insufficiency with sensitivity of 94.1%, specificity of 93.6%, negative predictive value of 98% and positive predictive value of 80%.
  
  
  CONCLUSIONS
  Doppler sonography may be used as a good predictor of clinical response to intracavernosal injection of a vasodilating pharmacological agent.
authors.affiliation: Department of Radio Diagnosis, Post Graduate Institute of Medical Sciences, Rohtak, Haryana, India.
authors.forename: Jyotsna
authors.initials: J
authors.lastname: Sen
authors.forename: Rajesh
authors.initials: R
authors.lastname: Godara
authors.forename: Ramender
authors.initials: R
authors.lastname: Singh
authors.forename: Raj Kumar
authors.initials: RK
authors.lastname: Airon
mesh_terms: D000328:Adult; D001783:Blood Flow Velocity / Q000502:physiology; D006801:Humans; D018783:Impotence, Vasculogenic / Q000000981:diagnostic imaging* / Q000503:physiopathology; D008297:Male; D008875:Middle Aged; D010208:Papaverine / Q000008:administration & dosage; D018615:Ultrasonography, Doppler, Color; D014665:Vasodilator Agents / Q000008:administration & dosage
chemical_list: D014665:Vasodilator Agents; D010208:Papaverine