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• W2032896077 abstract "No AccessJournal of UrologyPapers Presented at Annual Meeting of the Section on Urology, American Academy of Pediatrics; San Francisco, California; October 17-19, 1998: Testes1 Sep 1999A NEW MANAGEMENT ALGORITHM FOR IMPALPABLE UNDESCENDED TESTIS WITH GADOLINIUM ENHANCED MAGNETIC RESONANCE ANGIOGRAPHY C.K. YEUNG, Y.H. TAM, Y.L. CHAN, K.H. LEE, and C. METREWELI C.K. YEUNGC.K. YEUNG More articles by this author , Y.H. TAMY.H. TAM More articles by this author , Y.L. CHANY.L. CHAN More articles by this author , K.H. LEEK.H. LEE More articles by this author , and C. METREWELIC. METREWELI More articles by this author View All Author Informationhttps://doi.org/10.1016/S0022-5347(01)68046-7AboutFull TextPDF ToolsAdd to favoritesDownload CitationsTrack CitationsPermissionsReprints ShareFacebookLinked InTwitterEmail Abstract Purpose: We evaluated the diagnostic accuracy of preoperative localization of impalpable undescended testis using ultrasound and gadolinium (Gd) enhanced magnetic resonance angiography (MRA). Materials and Methods: Ultrasound and Gd-MRA were performed prospectively in 21 boys (23 impalpable testes) with cryptorchidism before laparoscopy and surgical exploration. Gd-MRA was done using a 1.5 Tesla magnetic resonance scanner with a turbo field echo technique after bolus intravenous injection of 0.4 mmol./kg. body weight of Gd diethylenetriaminepentaacetic acid. A total of 10 dynamic scans were acquired during 15 minutes after Gd injection to cover the early arterial and delayed venous phases. All patients subsequently underwent diagnostic laparoscopy and definitive surgery. Results: Ultrasound correctly localized 9 of 10 intracanalicular testes but failed to reveal any intra-abdominal or vanishing testes. In contrast, Gd-MRA correctly localized 4 intra-abdominal, all 10 intracanalicular and 8 canalicular vanishing testes. In 1 patient with an intra-abdominal vanishing testis ultrasound and Gd-MRA failed to make the diagnosis. When correlated with the findings of subsequent laparoscopy and surgical exploration, Gd-MRA had a diagnostic sensitivity of 96% and a specificity of 100% for localizing impalpable undescended testes. Based on Gd-MRA and ultrasound findings laparoscopy could have been avoided in 18 of 23 cases (78%). No adverse effect was associated with Gd use in this study. Conclusions: Gd-MRA accurately diagnoses vanishing testes and reliably differentiates intra-abdominal from intracanalicular impalpable testes, allowing definite preoperative planning of the surgical approach and avoiding unnecessary laparoscopy. A new management algorithm for impalpable testis in patients with cryptorchidism is proposed based on ultrasound and Gd-MRA findings. References 1 : Ultrasonographic demonstration of undescended testes. Radiology1979; 133: 181. Google Scholar 2 : Scrotal-inguinal ultrasonography: a technique for identifying the nonpalpable inguinal testis without laparoscopy. J. Urol.1996; 156: 791. Link, Google Scholar 3 : Comparison of computed tomography with high-resolution real-time ultrasound in localization of the impalpable undescended testes. Radiology1983; 146: 133. Google Scholar 4 : The accuracy of magnetic resonance imaging and ultrasonography compared with surgical findings in the localization of the undescended testis. Arch. Ped. Adolesc. Med.1994; 148: 699. Google Scholar 5 : The use of computerized tomography scanning to localize the impalpable testis. J. Urol.1983; 129: 972. Link, Google Scholar 6 : Magnetic resonance imaging for localizing the non-palpable undescended testis. J. Ped. Surg.1991; 26: 607. Google Scholar 7 : Nonpalpable testes in young boys: evaluation with MR imaging. Radiology1988; 169: 429. Google Scholar 8 : Testicular venography for undescended testes. AJR1977; 129: 67. Google Scholar 9 : Selective spermatic arteriography for localization of an impalpable testis. Radiology1980; 136: 627. Google Scholar 10 : The limited role of imaging techniques in managing children with undescended testes. J. Urol.1993; 150: 458. Link, Google Scholar 11 : Preoperative laparoscopic localization of the nonpalpable testis: a critical analysis of a 10-year experience. J. Urol.1994; 151: 732. Link, Google Scholar 12 : Laparoscopic evaluation of the nonpalpable testis: a prospective assessment of accuracy. J. Urol.1994; 151: 728. Link, Google Scholar 13 : The role of laparoscopy in evaluation of the impalpable undescended testis. Aust. New Zeal. J. Surg.1997; 67: 332. Google Scholar 14 : Cryptorchidism. Brit. J. Surg.1989; 76: 109. Google Scholar 15 : Cryptorchidism. In: . Philadelphia: W. B. Saunders Co.1992: 1050. Google Scholar 16 : The impalpable testis: a rational approach to management. J. Urol.1978; 120: 515. Link, Google Scholar 17 : High resolution real-time ultrasonography in the localization of the undescended testis. J. Urol.1985; 135: 936. Google Scholar 18 : Management of the abdominal undescended testicle. J. Urol.1979; 122: 76. Link, Google Scholar 19 : Laparoscopically assisted testicular autotransplantation for the management of intraabdominal undescended testes. J. Urol.1996; 156: 772. Link, Google Scholar 20 : Laparoscopic single stage and staged orchidopexy. J. Urol.1994; 152: 1249. Link, Google Scholar 21 : Therapeutic laparoscopy for intra-abdominal testes. Urology1993; 42: 182. Google Scholar 22 : Gadolinium-infusion magnetic resonance angiogram: a new, noninvasive, and accurate method of preoperative localization of impalpable undescended testes. J. Ped. Surg.1998; 33: 123. Google Scholar 23 : Laparoscopy for impalpable testes: significance of the patent processus vaginalis. J. Urol.1994; 152: 776. Link, Google Scholar 24 : Histological evaluation of the testicular nubbin in the vanishing testis syndrome. J. Urol.1998; 160: 1161. Link, Google Scholar From the Departments of Surgery, and Diagnostic Radiology and Organ Imaging, Chinese University of Hong Kong, Prince of Wales Hospital, Hong Kong, China© 1999 by American Urological Association, Inc.FiguresReferencesRelatedDetailsCited byWood H and Elder J (2018) Cryptorchidism and Testicular Cancer: Separating Fact From FictionJournal of Urology, VOL. 181, NO. 2, (452-461), Online publication date: 1-Feb-2009.Desireddi N, Liu D, Maizels M, Rigsby C, Casey J and Cheng E (2008) Magnetic Resonance Arteriography/Venography is Not Accurate to Structure Management of the Impalpable TestisJournal of Urology, VOL. 180, NO. 4S, (1805-1809), Online publication date: 1-Oct-2008.JANOFF D and SKOOG S (2018) CONGENITAL SCROTAL AGENESIS: DESCRIPTION OF A RARE ANOMALY AND MANAGEMENT STRATEGIESJournal of Urology, VOL. 173, NO. 2, (589-591), Online publication date: 1-Feb-2005.EGGENER S, LOTAN Y and CHENG E (2018) MAGNETIC RESONANCE ANGIOGRAPHY FOR THE NONPALPABLE TESTIS: A COST AND CANCER RISK ANALYSISJournal of Urology, VOL. 173, NO. 5, (1745-1750), Online publication date: 1-May-2005.GATTI J, COOPER C and KIRSCH A (2018) Bimanual Digital Rectal Examination for the Evaluation of the Nonpalpable TestisJournal of Urology, VOL. 170, NO. 1, (207-210), Online publication date: 1-Jul-2003. Volume 162Issue 3 Part 2September 1999Page: 998-1002 Advertisement Copyright & Permissions© 1999 by American Urological Association, Inc.MetricsAuthor Information C.K. YEUNG More articles by this author Y.H. TAM More articles by this author Y.L. CHAN More articles by this author K.H. LEE More articles by this author C. METREWELI More articles by this author Expand All Advertisement PDF downloadLoading ..." @default.
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