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Article: Gadolinium-infusion magnetic resonance angiogram: A new, noninvasive, and accurate method of preoperative localization of impalpable undescended testes
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TitleGadolinium-infusion magnetic resonance angiogram: A new, noninvasive, and accurate method of preoperative localization of impalpable undescended testes
 
AuthorsLam, WWM
Tam, PKH1
Ai, VHG
Chan, KL
Cheng, W
Chan, FL
Leong, L
 
KeywordsMR angiogram
MRI
Undescended testis
 
Issue Date1998
 
PublisherWB Saunders Co. The Journal's web site is located at http://www.elsevier.com/locate/jpedsurg
 
CitationJournal Of Pediatric Surgery, 1998, v. 33 n. 1, p. 123-126 [How to Cite?]
DOI: http://dx.doi.org/10.1016/S0022-3468(98)90377-3
 
AbstractPurpose: This study investigates the usefulness of Gadolinium (Gd)- infusion magnetic resonance angiogram (MRA) in the detection of impalpable undescended testes. Methods: Magnetic resonance (MRI) examination was performed in 14 patients with 17 impalpable undescended testes (unilateral, n = 11; bilateral, n = 3). MRA was then performed as follows: Gadolinium-DTPA- BMA (Omniscan) at 0.3 mmol/kg body weight was injected intravenously, and dynamic coronal examination using fast spoiled gradient recalled sequences was obtained with images taken at early arterial and delay venous phases. The testis was located by detection of the enhanced pampiniform venous plexus. Results: Of the 17 undescended testes, 11 canalicular hypoplastic testes and 3 intraabdominal testes were detected in both routine MRI and MRA. Three atrophic testes were found in the scrotum by MRA but not detected by routine MRI. The detection rates of impalpable testes by MRI and MRA were 82.4% and 100%, respectively. All imaging findings were confirmed by surgical exploration. There was no morbidity associated with MRA. Conclusion: Gd- infusion MRA is an accurate and sensitive method of preoperative localization of impalpable testes and is superior to conventional MRI in the detection of atrophic testes.
 
ISSN0022-3468
2013 Impact Factor: 1.311
2013 SCImago Journal Rankings: 0.811
 
DOIhttp://dx.doi.org/10.1016/S0022-3468(98)90377-3
 
ISI Accession Number IDWOS:000071499400029
 
ReferencesReferences in Scopus
 
DC FieldValue
dc.contributor.authorLam, WWM
 
dc.contributor.authorTam, PKH
 
dc.contributor.authorAi, VHG
 
dc.contributor.authorChan, KL
 
dc.contributor.authorCheng, W
 
dc.contributor.authorChan, FL
 
dc.contributor.authorLeong, L
 
dc.date.accessioned2010-09-06T08:46:46Z
 
dc.date.available2010-09-06T08:46:46Z
 
dc.date.issued1998
 
dc.description.abstractPurpose: This study investigates the usefulness of Gadolinium (Gd)- infusion magnetic resonance angiogram (MRA) in the detection of impalpable undescended testes. Methods: Magnetic resonance (MRI) examination was performed in 14 patients with 17 impalpable undescended testes (unilateral, n = 11; bilateral, n = 3). MRA was then performed as follows: Gadolinium-DTPA- BMA (Omniscan) at 0.3 mmol/kg body weight was injected intravenously, and dynamic coronal examination using fast spoiled gradient recalled sequences was obtained with images taken at early arterial and delay venous phases. The testis was located by detection of the enhanced pampiniform venous plexus. Results: Of the 17 undescended testes, 11 canalicular hypoplastic testes and 3 intraabdominal testes were detected in both routine MRI and MRA. Three atrophic testes were found in the scrotum by MRA but not detected by routine MRI. The detection rates of impalpable testes by MRI and MRA were 82.4% and 100%, respectively. All imaging findings were confirmed by surgical exploration. There was no morbidity associated with MRA. Conclusion: Gd- infusion MRA is an accurate and sensitive method of preoperative localization of impalpable testes and is superior to conventional MRI in the detection of atrophic testes.
 
dc.description.naturelink_to_subscribed_fulltext
 
dc.identifier.citationJournal Of Pediatric Surgery, 1998, v. 33 n. 1, p. 123-126 [How to Cite?]
DOI: http://dx.doi.org/10.1016/S0022-3468(98)90377-3
 
dc.identifier.doihttp://dx.doi.org/10.1016/S0022-3468(98)90377-3
 
dc.identifier.epage126
 
dc.identifier.hkuros33077
 
dc.identifier.isiWOS:000071499400029
 
dc.identifier.issn0022-3468
2013 Impact Factor: 1.311
2013 SCImago Journal Rankings: 0.811
 
dc.identifier.issue1
 
dc.identifier.openurl
 
dc.identifier.pmid9473116
 
dc.identifier.scopuseid_2-s2.0-0031985045
 
dc.identifier.spage123
 
dc.identifier.urihttp://hdl.handle.net/10722/83919
 
dc.identifier.volume33
 
dc.languageeng
 
dc.publisherWB Saunders Co. The Journal's web site is located at http://www.elsevier.com/locate/jpedsurg
 
dc.publisher.placeUnited States
 
dc.relation.ispartofJournal of Pediatric Surgery
 
dc.relation.referencesReferences in Scopus
 
dc.subjectMR angiogram
 
dc.subjectMRI
 
dc.subjectUndescended testis
 
dc.titleGadolinium-infusion magnetic resonance angiogram: A new, noninvasive, and accurate method of preoperative localization of impalpable undescended testes
 
dc.typeArticle
 
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Author Affiliations
  1. Queen Mary Hospital Hong Kong