Dynamic Three-Dimensional Ultrasound of the Penis

The minimally compressed imaging technique can also be used for visualisation of the penile erection. We were wondering if the 4D modelling could help impotent or spinal-paralysed patients with remaining involuntary erectility to improve their sexual life. In addition, 3D MRI assessment of the artificial urethral sphincter (cuff) implanted in patients with incontinence are also under investigation with UCL Departments of Imaging and Urology.
Read Display Info if you have difficulty browsing these graphics-orientated pages.To view a movie, click on an image with a [GIF] or [AVI] or [WMV] link)
3D & 4D US
Click here to see Penile Erection during Real Intercourse [WMV 1.773KB]
Click below to see Penile Erection Using an Artificial (Acoustic) Vagina [AVI 776KB].
artificial intercourse, GIF 41KB
A pair of pictures linked here shows the changes in penile volume and tissue "density" before and after the use of viagra. These following links show the pre- and post- viagra blood flow change.
A link here shows the reversed flow (in blue) through one side of the penile artery, possibly from a shunting flow (in red) from the other side.
A front view of the penis and the artificial sphincter (cuff) only about 2/3 around the spongiose urethra [AVI 255KB]. A successfully implanted cuff around the spongiose urethra and the inflatable balloon near the bladder [GIF 356KB].
3D MRI artificial sphincter
3D MRI sphincter, successfully implanted

* 3D/4D ultrasound data sets through this page were acquired with Philips Live 3D Ultrasound and Real-Time Volumetric Imaging; 3D/4D images & movies were reconstructed with either TomTec's 4D Echo Scan or MGI's 3D Imaging Workstation