title: SOP: corpus cavernosum assessment (cavernosography/cavernosometry).
abstract: BACKGROUND
  There is no universal gold standard diagnostic test to differentiate psychogenic from organic erectile dysfunction (ED). Cavernosography/cavernosometry has been used to evaluate veno-occlusive dysfunction (VOD) in men with a proposed organic ED.
  
  
  OBJECTIVE
  To develop evidence-based guidelines for the performance and interpretation of cavernosography/cavernosometry.
  
  
  METHODS
  Review the methodology behind cavernosography/cavernosometry and evaluate the evidence that supports its use and interpretation of results.
  
  
  METHODS
  Expert opinion based on review of the literature, extensive internal committee discussion, public presentation, and debate.
  
  
  RESULTS
  The detailed technique of cavernosography/cavernosometry is described. An evidence-based perspective to the use and interpretation of cavernosometry is presented.
  
  
  CONCLUSIONS
  The positive predictive value of cavernosometry still needs further assessment. It is unknown how many potent men would test positive for VOD (false positive).
authors.affiliation: Instituto H. Ellis, São Paulo, Brazil. glinas@terra.com.br
authors.forename: Sidney
authors.initials: S
authors.lastname: Glina
authors.forename: Hussein
authors.initials: H
authors.lastname: Ghanem
mesh_terms: D001794:Blood Pressure / Q000502:physiology; D002985:Clinical Protocols / Q000592:standards; D007172:Erectile Dysfunction / Q000175:diagnosis* / Q000000981:diagnostic imaging / Q000503:physiopathology; D006801:Humans; D018783:Impotence, Vasculogenic / Q000175:diagnosis / Q000000981:diagnostic imaging / Q000503:physiopathology; D008297:Male; D010413:Penis / Q000098:blood supply / Q000000981:diagnostic imaging / Q000503:physiopathology; D017410:Practice Guidelines as Topic / Q000592:standards; D014463:Ultrasonography