By Lorenzo E. Derchi (auth.), Michele Bertolotto MD (eds.)
This ebook offers a entire reference and sensible consultant at the software folks to penile illnesses and stipulations. After introductory chapters on technical necessities and penile anatomy, next chapters supply a scientific evaluate of the various purposes of colour Doppler US. the themes coated contain erectile disorder, Peyronie’s sickness, priapism, trauma, tumors, the postoperative penis, irritation, and fibrosis. each one subject is brought by way of a medical evaluate with the aim of clarifying the issues and elucidating what the urologist may possibly anticipate from colour Doppler US. Thereafter, functionality of the U.S. learn is defined and the pathological anatomy reviewed. fine quality pictures received with high-end US gear are incorporated. each one bankruptcy additionally includes a part at the diagnostic details supplied by means of different imaging modalities, and specifically MRI.
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1 = almost never or never; 2 = a few times (less than half the time); 3 = sometimes (about half the time); 4 = most times (more than half the time); 5 = almost always or always Q11 How often have you felt sexual desire? 1 = almost never or never; 2 = a few times (less than half the time); 3 = sometimes (about half the time); 4 = most times (more than half the time); 5 = almost always or always Q12 How would you rate your level of sexual desire? 1 = very low or none at all; 2 = low; 3 = moderate; 4 = high; 5 = very high Q13 How satisﬁed have you been with your overall sex life?
The resistive index progressively increases from cavernosal phase 1 to phase 3. When full erection is reached cavernosal-spongiosal communications tend to close and disappear or, in other cases, their diastolic velocity markedly reduces or declines to 0. A characteristic Doppler spectrum can be appreciable with a positive diastolic ﬂow, which can be due to a steel phenomenon towards the corpus spongiosum and an inverse systolic peak that is likely due to the hydraulic “ram stroke” produced near the occlusion site (Fig.
Dicrotic notch appearance at end systole and progressive decrease of the diastolic ﬂow. d Phase 3. End diastolic ﬂow disappearance. e Phase 4. Diastolic ﬂow reversal. f Phase 5. Reduction of the systolic peak during rigid erection e f 36 M. Bertolotto et al. gin of the helicine arterioles reduces, and diastolic velocity declines to 0. During cavernosal phase 5 helicine arterioles disappear. 5 Cavernosal-Spongiosal Communications Also in these vessels characteristic changes are recognized reﬂecting waveform changes within the cavernosal arteries (Bertolotto et al.