Comparison of the diagnostic value of pump and gravity cavernosometry in the evaluation of the cavernous veno-occlusive mechanism

We performed cavernosometry in 96 patients with erectile dysfunction. Two different techniques were compared: pump cavernosometry using a roller pump as the inflow source and gravity cavernosometry using an infusion set as the inflow source. We conclude that the diagnostic value of both techniques is comparable. In pump cavernosometry maintenance flow is the most accurate parameter of veno-occlusive function. Gravity cavernosometry has the advantages of simplicity, cost-effectiveness and a lower complication rate. Incomplete cavernous smooth muscle relaxation appeared to be limiting the diagnostic value of both techniques.