title: A preliminary study of shear wave elastography for the evaluation of unilateral palpable undescended testes.
abstract: OBJECTIVE
  We sought to compare unilateral palpable undescended testes and contralateral descended testes using shear wave elastography (SWE) to show potential quantitative differences in elasticity patterns, which might reflect the histologic features.
  
  
  METHODS
  Approval for this prospective study was obtained from the local ethics committee. A total of 29 patients (mean age, 7.52 years; range, 1-18 years) with unilateral palpable undescended testes and contralateral descended testes were examined by greyscale ultrasonography and SWE between February 2015 and April 2016. The volume and the elasticity of each testicle were the main factors evaluated.
  
  
  RESULTS
  There was no difference between undescended testes and contralateral descended testes in terms of volume. However, a significant difference was evident in SWE-derived quantitative data.
  
  
  CONCLUSIONS
  SWE seems to be a useful sonographic technique to predict histologic features of the undescended testicle, which might replace testicular biopsy in modern management of the undescended testis.
authors.affiliation: Istanbul University, Cerrahpasa Faculty of Medicine, Department of Radiology, KMPasa, Istanbul, 34098, Turkey. Electronic address: Aysekucar@gmail.com.
authors.forename: Ayse Kalyoncu
authors.initials: AK
authors.lastname: Ucar
authors.affiliation: Istanbul University, Cerrahpasa Faculty of Medicine, Department of Radiology, KMPasa, Istanbul, 34098, Turkey. Electronic address: denizalis@gmail.com.
authors.forename: Deniz
authors.initials: D
authors.lastname: Alis
authors.affiliation: Istanbul University, Cerrahpasa Faculty of Medicine, Department of Radiology, KMPasa, Istanbul, 34098, Turkey. Electronic address: cesursamanci@gmail.com.
authors.forename: Cesur
authors.initials: C
authors.lastname: Samanci
authors.affiliation: Istanbul University, Cerrahpasa Faculty of Medicine, Department of Radiology, KMPasa, Istanbul, 34098, Turkey. Electronic address: mineus_77@yahoo.com.
authors.forename: Mine
authors.initials: M
authors.lastname: Aslan
authors.affiliation: Istanbul University, Cerrahpasa Faculty of Medicine, Department of Radiology, KMPasa, Istanbul, 34098, Turkey. Electronic address: arioz.hatice@gmail.com.
authors.forename: Hatice Arioz
authors.initials: HA
authors.lastname: Habibi
authors.affiliation: Istanbul University, Cerrahpasa Faculty of Medicine, Department of Radiology, KMPasa, Istanbul, 34098, Turkey. Electronic address: drsuleymandikici@gmail.com.
authors.forename: Atilla Suleyman
authors.initials: AS
authors.lastname: Dikici
authors.affiliation: Istanbul University, Cerrahpasa Faculty of Medicine, Department of Radiology, KMPasa, Istanbul, 34098, Turkey. Electronic address: namdaryesim@gmail.com.
authors.forename: Yesim
authors.initials: Y
authors.lastname: Namdar
authors.affiliation: Istanbul University, Cerrahpasa Faculty of Medicine, Department of Urology, KMPasa, Istanbul, 34098, Turkey. Electronic address: mhamzagultekin@hotmail.com.
authors.forename: Mehmet Hamza
authors.initials: MH
authors.lastname: Gultekin
authors.affiliation: Istanbul University, Cerrahpasa Faculty of Medicine, Department of Urology, KMPasa, Istanbul, 34098, Turkey. Electronic address: bulonal@yahoo.com.
authors.forename: Bulent
authors.initials: B
authors.lastname: Onal
authors.affiliation: Istanbul University, Cerrahpasa Faculty of Medicine, Department of Radiology, KMPasa, Istanbul, 34098, Turkey. Electronic address: iadaletli@yahoo.com.
authors.forename: Ibrahim
authors.initials: I
authors.lastname: Adaletli
mesh_terms: D000293:Adolescent; D002648:Child; D002675:Child, Preschool; D003456:Cryptorchidism / Q000000981:diagnostic imaging* / Q000473:pathology; D004548:Elasticity; D054459:Elasticity Imaging Techniques / Q000379:methods*; D006801:Humans; D007223:Infant; D008297:Male; D009929:Organ Size; D011446:Prospective Studies; D013737:Testis / Q000000981:diagnostic imaging / Q000473:pathology; D055815:Young Adult
keywords: Orchidopexy; SWE; Testicular biopsy; Unilateral undescended testes