Fig. 1From: Hydrostatic pressure of the renal pelvis as a radiation-free alternative to fluoroscopic nephrostogram following percutaneous nephrolithotomyMethod of a pressure-controlled nephrostogram using normal saline 0.9% as infusion fluid via indwelling nephrostomy, a normal manometer to measure the pressure in cmH2O and a regular three-way-tap. The zero line is localized at the level of the kidneyBack to article page