title: Doppler sonographic findings in testicular microlithiasis.
abstract: OBJECTIVE
  The aim of this prospective study was to compare the resistive index (RI) values, which is a parameter of testicular parenchymal perfusion, in testicular microlithiasis (TM) cases and normal cases.
  
  
  METHODS
  2179 volunteers, all healthy men (17-42 years of age) from the Annual Army Reserve Officer Training Corps training camp were included in the study. A screening scrotal ultrasound was performed and all men diagnosed with TM underwent a scrotal Doppler ultrasonography scan (US). US examinations were performed for subjects with TM and without TM as a control group and RI was determined.
  
  
  RESULTS
  53 men with TM were identified in the 2179 US. Spectral Doppler examination was applied to 50 randomly selected cases (100 testicles) without TM and 92 testicles with TM, 39 cases (78 testicles) with bilateral and 14 cases with unilateral involvement. However, 48 normal testicles (17 bilateral and 14 unilateral) and 47 testicles with TM (15 bilateral and 17 unilateral, 10 of which were cases with bilateral TM) where flow from the centripetal artery could be obtained and analyzed were included in the statistical analysis for resistive indices. There was no significant difference regarding the RI and spectral examinations between subjects with and without TM. An interesting finding was the twinkling artifact observed in three cases.
  
  
  CONCLUSIONS
  Microliths did not alter the RI values and thus had no influence on testicular perfusion on Doppler US examination.
authors.affiliation: Department of Radiology, Celal Bayar University, Manisa, Turkey. serterselim@gmail.com
authors.forename: Selim
authors.initials: S
authors.lastname: Serter
authors.forename: Sebnem
authors.initials: S
authors.lastname: Orguc
authors.forename: Bilal
authors.initials: B
authors.lastname: Gumus
authors.forename: Veli
authors.initials: V
authors.lastname: Ayyildiz
authors.forename: Yuksel
authors.initials: Y
authors.lastname: Pabuscu
mesh_terms: D000293:Adolescent; D000328:Adult; D016022:Case-Control Studies; D006801:Humans; D020347:Lithiasis / Q000000981:diagnostic imaging*; D008297:Male; D011446:Prospective Studies; D013733:Testicular Diseases / Q000000981:diagnostic imaging*; D013737:Testis / Q000098:blood supply / Q000000981:diagnostic imaging*; D018615:Ultrasonography, Doppler, Color; D014655:Vascular Resistance; D055815:Young Adult