RT Book, Section A1 Thüroff, Joachim W. A1 Gillitzer, Rolf A2 McAninch, Jack W. A2 Lue, Tom F. SR Print(0) ID 56941408 T1 Chapter 8. Percutaneous Endourology & Ureterorenoscopy T2 Smith & Tanagho's General Urology, 18e YR 2013 FD 2013 PB The McGraw-Hill Companies PP New York, NY SN 978-0-07-162497-8 LK accesssurgery.mhmedical.com/content.aspx?aid=56941408 RD 2024/04/18 AB Retrograde instrumentation of the upper urinary tract, such as ureterorenoscopy, uses under endoscopic guidance the anatomically predestined access via the urethra and ureter, while techniques of antegrade instrumentation require a percutaneous puncture. This approach must respect the intrarenal anatomy just as in open surgical nephrotomy, and imaging techniques are required to guide the procedure.