Abstract
Herein, we seek to review the clinical applications of penile duplex Doppler ultrasound (PDDU) in sexual medicine practices and discuss the indications, protocols, advantages, and limitations of this diagnostic modality. Other more outdated diagnostic tests, such as cavernosometry, are briefly discussed to provide the reader a background of understanding on the evolution of diagnostic testing within the realm of sexual medicine. PDDU has become a key diagnostic tool in the clinical evaluation of both erectile dysfunction (ED) and Peyronie's disease (PD). With the assistance of intracavernosal injections such as alprostadil, clinicians can utilize ultrasound technology to produce a detailed description of the hemodynamics of the patient's erection cycle. This information plays a pivotal role in establishing an accurate diagnosis and creating a sensible management plan for the patient. This review aims to provide a better understanding regarding the technique and interpretation of PDDU as it pertains to male sexual function.
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