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FUNCTIONAL ANATOMY OF CAVERNOUS HELICINE ARTERIOLES IN POTENT SUBJECTS

1998; Lippincott Williams & Wilkins; Volume: 159; Issue: 3 Linguagem: Inglês

10.1016/s0022-5347(01)63738-8

1527-3792

Francesco Montorsi, M Sarteschi, Tommaso Maga, Giorgio Guazzoni, G. Fabris, Patrizio Rigatti, G. Pizzini, A Miani,

Sexual Differentiation and Disorders

No AccessJournal of UrologyClinical Urology: Original Articles1 Mar 1998FUNCTIONAL ANATOMY OF CAVERNOUS HELICINE ARTERIOLES IN POTENT SUBJECTS FRANCESCO MONTORSI, MARIO SARTESCHI, TOMMASO MAGA, GIORGIO GUAZZONI, G. FABRIZIO MENCHINI FABRIS, PATRIZIO RIGATTI, GIULIANO PIZZINI, and ALBERTO MIANI FRANCESCO MONTORSIFRANCESCO MONTORSI , MARIO SARTESCHIMARIO SARTESCHI , TOMMASO MAGATOMMASO MAGA , GIORGIO GUAZZONIGIORGIO GUAZZONI , G. FABRIZIO MENCHINI FABRISG. FABRIZIO MENCHINI FABRIS , PATRIZIO RIGATTIPATRIZIO RIGATTI , GIULIANO PIZZINIGIULIANO PIZZINI , and ALBERTO MIANIALBERTO MIANI View All Author Informationhttps://doi.org/10.1016/S0022-5347(01)63738-8AboutFull TextPDF ToolsAdd to favoritesDownload CitationsTrack CitationsPermissionsReprints ShareFacebookLinked InTwitterEmail Abstract Purpose: We investigated the morphological and functional features of cavernous helicine arterioles in male potent subjects. Materials and Methods: Ten young men reporting normal rigid erections which were confirmed by polysomnographic recording underwent power Doppler sonography of the cavernous helicine arterioles during flaccidity, after intracavernous injection of alprostadil, and after subsequent genital and audiovisual sexual stimulation. Results: During flaccidity the helicine arterioles were never detected by power Doppler imaging while they became evident in all cases after alprostadil injection. They usually originated from the cavernous artery forming an acute angle and showed 3 orders of ramifications. Systolic and diastolic flow was present. After genital and audiovisual sexual stimulation, and achievement of maximum rigidity, the helicine arterioles were still evident but with only 1 or 2 orders of distal ramifications. Only systolic flow was present. During penile tumescence the helicine arterioles disappeared in all cases. Conclusions: Using power Doppler sonography it is possible to investigate the functional anatomy of the cavernous helicine arterioles during the various phases of the erectile cycle. Our preliminary study suggests that the helicine arterioles are functionally inactive during penile flaccidity while they are activated during penile tumescence and continue to supply blood to the corpora also during maximum penile rigidity. References 1 : Duplex Doppler ultrasonography: noninvasive assessment of penile anatomy and function. Sem. Roentgen.1993; 28: 43. Google Scholar 2 : Assessment of normal and abnormal erectile function: color Doppler sonography versus conventional techniques. Radiology1991; 180: 105. Google Scholar 3 : Two circulatory routes within the human corpus cavernosum penis: a scanning electron microscopic study of corrosion casts. J. Urol.1989; 142: 879. Link, Google Scholar 4 : Scanning electron microscope observation of penile vascular casts in the dog: an inquiry into the possible mechanisms of erection based on the findings. Biomed. Res.1987; 8: 269. Google Scholar 5 : Power versus conventional color Doppler sonography: comparison in the depiction of normal intrarenal picture. Radiology1994; 192: 777. Google Scholar 6 : Power Doppler US: a potentially useful alternative to mean frequency-based color Doppler US. Radiology1994; 190: 853. Google Scholar 7 : Normal values for penile blood flow studies: distinguishing prepenile from intrapenile disease. J. Urol.1997; 157: 179. part 2, abstract 694. Google Scholar From the Institute of Human Anatomy, Departments of Andrology and Urology, University of Milan School of Medicine, University of Pisa School of Medicine and Scientific Institute H. San Raffaele, Milan, Italy.© 1998 by American Urological Association, Inc.FiguresReferencesRelatedDetailsCited byCHIOU R, ALBERTS G, POMEROY B, ANDERSON J, CARLSON L, ANDERSON J and WOBIG R (2018) STUDY OF CAVERNOSAL ARTERIAL ANATOMY USING COLOR AND POWER DOPPLER SONOGRAPHY: IMPACT ON HEMODYNAMIC PARAMETER MEASUREMENTJournal of Urology, VOL. 162, NO. 2, (358-360), Online publication date: 1-Aug-1999. Volume 159Issue 3March 1998Page: 808-810 Advertisement Copyright & Permissions© 1998 by American Urological Association, Inc.Metrics Author Information FRANCESCO MONTORSI More articles by this author MARIO SARTESCHI More articles by this author TOMMASO MAGA More articles by this author GIORGIO GUAZZONI More articles by this author G. FABRIZIO MENCHINI FABRIS More articles by this author PATRIZIO RIGATTI More articles by this author GIULIANO PIZZINI More articles by this author ALBERTO MIANI More articles by this author Expand All Advertisement PDF downloadLoading ...