PD18-02 SYNCHRONOUS REAL-TIME VIRTUAL SONOGRAPHY WITH THREE-DIMENSIONAL COMPUTED TOMOGRAPHY SCAN NAVIGATION TO CREATE PERCUTANEOUS RENAL ACCESS TO THE TARGET CALIX DURING PERCUTANEOUS NEPHROLITHOTOMY

Abstract

You have accessJournal of UrologyStone Disease: Surgical Therapy II1 Apr 2016PD18-02 SYNCHRONOUS REAL-TIME VIRTUAL SONOGRAPHY WITH THREE-DIMENSIONAL COMPUTED TOMOGRAPHY SCAN NAVIGATION TO CREATE PERCUTANEOUS RENAL ACCESS TO THE TARGET CALIX DURING PERCUTANEOUS NEPHROLITHOTOMY Tatsuhiko Hoshii and Tsutomu Nishiyama Tatsuhiko HoshiiTatsuhiko Hoshii More articles by this author and Tsutomu NishiyamaTsutomu Nishiyama More articles by this author View All Author Informationhttps://doi.org/10.1016/j.juro.2016.02.1181AboutPDF ToolsAdd to favoritesDownload CitationsTrack CitationsPermissionsReprints ShareFacebookTwitterLinked InEmail INTRODUCTION AND OBJECTIVES Percutaneous renal access in the context of percutaneous nephrolithotomy (PNL) for kidney stones is a difficult technique, requiring rapid and precise access to a particular calix. We present the usefulness of synchronous real-time virtual ultrasonography (US) (RVS) with three-dimensional (3D) computed tomography (CT) scan navigation to create percutaneous renal access to the target calix during PNL. METHODS We performed thin-slice contrast-enhanced CT examinations in a prone position before PNL. RVS system consists of an ultrasound scanner, a position sensor unit, and a computer with RVS software (HI VISION Preirus; Hitachi Aloka Medical, Tokyo, Japan). (Figure) Multiplanar reconstruction images were reconstructed using CT. The previously acquired CT data were loaded onto RVS system. The patients were placed in a prone position. While the operator handled RVS system, the ultrasound machine generated multiplanar reconstruction images from the CT volume data, corresponding to the US images of the same or very similar cross section. The magnetic sensor on the sonography probe precisely captured the magnetic field alternation of the position, direction, or rotation via the transmitter placed at the patient’s counter side of the lesion. We could mark the target calix detected on CT. Virtual images with marks were revisualized while using conventional US that helped the operator perform percutaneous renal access to the target calix. RESULTS We performed percutaneous renal access to the target calix during percutaneous nephrostomy in the context of PNL successfully using synchronous RVS with 3D CT scan navigation for a 26-year-old man with right kidney stones. CONCLUSIONS We will be able to create efficiently minimally invasive percutaneous renal access to the target calix using RVS system. © 2016FiguresReferencesRelatedDetails Volume 195Issue 4SApril 2016Page: e404 Advertisement Copyright & Permissions© 2016MetricsAuthor Information Tatsuhiko Hoshii More articles by this author Tsutomu Nishiyama More articles by this author Expand All Advertisement Advertisement PDF downloadLoading ...