By Lorenzo E. Derchi (auth.), Michele Bertolotto MD (eds.)
This ebook presents a finished reference and useful consultant at the program folks to penile illnesses and stipulations. After introductory chapters on technical standards and penile anatomy, next chapters supply a scientific assessment of the varied functions of colour Doppler US. the themes coated comprise erectile disorder, Peyronie’s affliction, priapism, trauma, tumors, the postoperative penis, irritation, and fibrosis. each one subject is brought by way of a medical assessment with the aim of clarifying the issues and elucidating what the urologist might anticipate from colour Doppler US. Thereafter, functionality of the U.S. learn is defined and the pathological anatomy reviewed. fine quality photos bought with high-end US apparatus are integrated. each one bankruptcy additionally features a part at the diagnostic details supplied via different imaging modalities, and particularly MRI.
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Additional resources for Color Doppler US of the Penis
Color Doppler parameters and speciﬁcally peak systolic velocity (PSV) measured the increase statistically, and in about 65% erections sufﬁcient for intercourse were obtained. The transurethral administration of prostaglandin E1 has shown a positive effect in the treatment of a substantial proportion of men with chronic erectile dysfunction, but the procedure is not suitable to deﬁne the nature and the severity of it (Padma-Nathan et al. 1997). 3 Transdermal Drug Delivery Some authors have studied the possibility to deliver prostaglandin E1 using transdermal liposomal formulations through the foreskin in men with erectile dysfunction secondary to spinal cord injury or with mild arterial insufﬁciency (Foldvari et al.
Speciﬁc topics discussed will be ultrasound appearance of the corporal bodies and penile envelopes, visibility of normal penile vessels at color Doppler ultrasonography and normal changes of Doppler spectra during the onset of erection. 2 Evaluation Technique M. Bertolotto, MD; R. Pizzolato, MD; M. Djouguela Fute, MD Department of Radiology, University of Trieste, Ospedale di Cattinara, Strada di Fiume 447, Trieste, 34124, Italy A. Lissiani, MD Department of Urology, University of Trieste, Ospedale di Cattinara, Strada di Fiume 447, Trieste, 34124, Italy Penile sonography should be performed using high frequency linear probes with the patient in the supine position and the penis scanned from its ventral surface using longitudinal and transverse views.
These vessels are outside the tunica albuginea and therefore are not subjected to the intracorporeal pressure changes with each phase of erection; therefore, even in well-sustained rigidity, anterograde diastolic ﬂow persists (Broderick and Arger 1993). Generally speaking, Doppler spectral pattern and peak systolic velocity of dorsal penile arteries increase from about 20 cm/s while ﬂaccid to 40 cm/s or more during erection (Lee et al. 1993). 3 Arterial Communications These vessels present during the onset of erection with characteristic progression of Doppler waveform reﬂecting blood pressure changes within the cavernosal bodies (Fig.