Document Detail

Sonography of fetal micturition.
MedLine Citation:
PMID:  15476295     Owner:  NLM     Status:  MEDLINE    
OBJECTIVE: To describe the sonographic visualization of fetal micturition and its role in the diagnosis of posterior urethral valves and hypospadias. METHODS: This was a prospective study of 25 male fetuses (21 with bilateral pyelectasis, one whose bladder was being studied because of ureterocele and three with hypospadias), and five female fetuses (with bilateral pyelectasis). A midline sagittal scan of the fetal pelvis, perineum and external genitalia was obtained and observed continuously during fetal micturition. RESULTS: In 19 of the 21 male fetuses and the five female fetuses with bilateral pyelectasis micturition was normal, with visualization of urinary bladder contraction, slight fluid distention of the urethra and a urinary stream from the external urethral meatus. In three male fetuses, two with bilateral pyelectasis and the one with ureterocele, the posterior urethra was normal at rest and it ballooned out during micturition, diagnostic of posterior urethral valves. In the three male fetuses with hypospadias the ventral jet of the urinary stream was visualized. CONCLUSION: Fetal micturition can be visualized on sonography. It may be of value in the diagnosis of posterior urethral valves and hypospadias.
S Boopathy Vijayaraghavan
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Ultrasound in obstetrics & gynecology : the official journal of the International Society of Ultrasound in Obstetrics and Gynecology     Volume:  24     ISSN:  0960-7692     ISO Abbreviation:  Ultrasound Obstet Gynecol     Publication Date:  2004 Nov 
Date Detail:
Created Date:  2004-11-08     Completed Date:  2005-04-25     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9108340     Medline TA:  Ultrasound Obstet Gynecol     Country:  England    
Other Details:
Languages:  eng     Pagination:  659-63     Citation Subset:  IM    
SONOSCAN, Ultrasonic Scan Centre, Coimbatore, India.
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MeSH Terms
Dilatation, Pathologic / embryology,  ultrasonography
Kidney Diseases / embryology,  pathology,  ultrasonography*
Kidney Pelvis / ultrasonography*
Prospective Studies
Ultrasonography, Prenatal / methods*
Ureterocele / embryology,  ultrasonography
Urethra / abnormalities*,  ultrasonography
Urination / physiology*

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