The Whitaker test.
Since obstruction can be satisfactorily defined only in dynamic terms, it is not surprising that in a difficult case, a dynamic means of investigation is needed. The dynamic approach described in detail has been proved to be of great value in a variety of clinical situations. Further, both the apparatus and the technique are well within the scope of any urologist with access to radiologic equipment.
D006801:Humans; D008722:Methods; D011312:Pressure; D011877:Radionuclide Imaging; D014563:Urodynamics; D014570:Urologic Diseases / Q000175:diagnosis* / Q000000981:diagnostic imaging / Q000503:physiopathology