| Analysis of human ejaculation using color Doppler ultrasonography: a comparison between antegrade and retrograde ejaculation. | |
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MedLine Citation:
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PMID: 15708054 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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OBJECTIVES: To observe the phenomenon of human ejaculation dynamically using color Doppler ultrasonography. METHODS: Human ejaculation was observed using transrectal color Doppler ultrasonography in a healthy man and a patient with retrograde ejaculation. Ejaculation was induced manually with audiovisual sexual stimulation. The ejaculatory phenomenon was analyzed and compared with that of retrograde ejaculation. RESULTS: In the healthy man, the prostatic urethra flattened slightly and the bladder neck contracted just before expulsion. The ejaculatory stream spurted from the seminal vesicles to the bulbous urethra through the ejaculatory duct. In the patient with retrograde ejaculation, the ejaculatory stream from the seminal vesicles and inframontanal and distal prostatic urethras distended into a globular-shaped sac filled with semen. No seminal flow toward the bulbous urethra occurred. The semen remaining in the prostatic urethra began flowing slowly into the bladder. CONCLUSIONS: Differences between antegrade and retrograde ejaculation can be clearly detected by color Doppler ultrasonography, providing a noninvasive method to diagnose ejaculatory disorders. |
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Authors:
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Atsushi Nagai; Masami Watanabe; Yasutomo Nasu; Hiroki Iguchi; Norihiro Kusumi; Hiromi Kumon |
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Publication Detail:
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Type: Comparative Study; Journal Article |
Journal Detail:
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Title: Urology Volume: 65 ISSN: 1527-9995 ISO Abbreviation: Urology Publication Date: 2005 Feb |
Date Detail:
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Created Date: 2005-02-14 Completed Date: 2005-10-05 Revised Date: 2006-11-15 |
Medline Journal Info:
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Nlm Unique ID: 0366151 Medline TA: Urology Country: United States |
Other Details:
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Languages: eng Pagination: 365-8 Citation Subset: IM |
Affiliation:
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Department of Urology, Okayama University Graduate School of Medicine and Dentistry, Okayama, Okayama Prefecture, Japan. atsnagai@md.okayama-u.ac.jp |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Adult Ejaculation / drug effects, physiology* Genitalia, Male / ultrasonography* Humans Male Muscle Contraction Penis / ultrasonography Prostate / blood supply, ultrasonography Seminal Vesicles / ultrasonography Spinal Cord Injuries / complications Thoracic Vertebrae Time Factors Ultrasonography, Doppler, Color* Urethra / ultrasonography* Urinary Bladder / ultrasonography* |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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