UROLOGY

The Role of Androgens in Prostate Cancer

Apr 6, 2017 by in UROLOGY Comments Off on The Role of Androgens in Prostate Cancer

Fig. 6.1 Simplified endocrinology of the prostate. Luteinizing hormone-releasing hormone (LHRH) from the hypothalamus stimulates the anterior pituitary to secrete luteinizing hormone (LH), which stimulates the Leydig cells of the…

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Scrotal Ultrasound

Mar 29, 2017 by in UROLOGY Comments Off on Scrotal Ultrasound

Fig. 1 Patient is placed in a supine position with a towel placed under the scrotum Fig. 2 Patient positioning: the phallus is positioned up on the pubis, held by…

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Physical Principles of Ultrasound of the Male Genitalia

Mar 29, 2017 by in UROLOGY Comments Off on Physical Principles of Ultrasound of the Male Genitalia

Fig. 1 Longitudinal waves. The expansion and contraction of piezoelectric crystals caused by the application of alternating current to the crystals causes compression and rarefaction of molecules in the body…

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Penile Ultrasound

Mar 29, 2017 by in UROLOGY Comments Off on Penile Ultrasound

This concept of a Doppler shift is used to measure blood flow velocity whereby the shift in sound-wave frequency is detected by the ultrasound transducer after encountering active blood flow….

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History of Ultrasound

Mar 29, 2017 by in UROLOGY Comments Off on History of Ultrasound

Fig. 1 Penile blood flow scoring system devised by Malvar et al. [24]. Each artery was evaluated. 0 points were given for “no flow,” 1 point for a “low pitched…

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Urology Ultrasound Practice Accreditation

Mar 29, 2017 by in UROLOGY Comments Off on Urology Ultrasound Practice Accreditation

Physicians performing and/or interpreting diagnostic examinations should meet at least one of the following criteria Completion of an approved urologic residency which includes training in ultrasound since July 1, 2009…

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