We developed a new system to record urethral pressure curves separately for the anterior, posterior, right and left walls of the urethra. It consists of a catheter with four channels running radially along the axis in 90° sectors from the bladder to the external urethral orifice and expresses the data stereographically with a computer system. We called the graph obtained by this recording system ‘stereographic urethral pressure profile’ (stereo UPP). The stereo UPP consists of a four-directional UPP, a urethral pressure tomogram and a urethral pressure relief diagram. It does not require any more time and manpower than the conventional UPP described by others and causes no pain to the patients. Moreover, this excellent three-dimensional system will enable even the nonspecialist to grasp the functional and morphological status of the urethra at one glance.

Keywords:
Urethral pressure profile, Three-dimensional, Urethral pressure tomography
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© 1984 S. Karger AG, Basel
1984
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