Mieke Bus

5 73 Figure 1: Flow chart describing patient inclusion in the OCT study. Patients who underwent a diagnostic URS including OCT measurement were finally included. RNU: radical nephroureterectomy. Although maximal flexion of the ureterorenoscope is restricted when the OCT probe is inserted, none of the measurements were constrained by this (Figure 2). Fluid irrigation during the OCT procedure was possible due to the irrigating system in the OCT probe. There were no adverse events associated to the OCT procedure.