Obligatory medical device diagnostics.
- Doppler sonography (ultrasound examination that can dynamically visualize fluid flow (especially blood flow)) – visualization of the penile arteries with a color Doppler or a duplex device and measurement of the so-called peak systolic velocity (PSV) and end-diastolic velocity (EDV), as well as the vascular resistance index (RI) in the A. penis profunda (penile artery) [low PSV (< 28 ± 4 cm/s): arterial insufficiency/arterial circulatory disturbance likely; high EDV (> 5 cm/s): venous leakage suspected].
- Transrectal prostate ultrasonography (TRUS; ultrasound of the prostate using an ultrasound probe inserted into the rectum).
Optional medical device diagnostics – depending on the results of the history, physical examination, laboratory diagnostics and obligatory medical device diagnostics – for differential diagnostic clarification.
- Cavernosography (contrast examination of the corpus cavernosum of the penis) including cavernosometry (corpus cavernosum function measurement)Indication: after corpus cavernosum injection of 20 µg Prostatglandin E1 (intracorporeal prostate injection) after 30-60 minutes no sufficient erection![Probable cause of erectile dysfunction: increased blood outflow (so-called venous leakage or cavernous insufficiency, synonym: veno-occlusive dysfunction) → Cavernosography]
