MP18-10 COMPARISON OF PLANAR SCINTIGRAPHY AND SINGLE-PHOTON EMISSION COMPUTED TOMOGRAPHY /COMPUTED TOMOGRAPHY (SPECT/CT) IN PREOPERATIVE IMAGING OF SENTINEL LYMPH NODES IN PENILE CANCER PATIENTS

Abstract

You have accessJournal of UrologyImaging/Radiology: Uroradiology III1 Apr 2017MP18-10 COMPARISON OF PLANAR SCINTIGRAPHY AND SINGLE-PHOTON EMISSION COMPUTED TOMOGRAPHY /COMPUTED TOMOGRAPHY (SPECT/CT) IN PREOPERATIVE IMAGING OF SENTINEL LYMPH NODES IN PENILE CANCER PATIENTS Carsten Maik Naumann, Moritz Franz Hamann, Christian Colberg, Klaus-Peter Jünemann, Daniar Osmonov, and Ulf Lützen Carsten Maik NaumannCarsten Maik Naumann More articles by this author , Moritz Franz HamannMoritz Franz Hamann More articles by this author , Christian ColbergChristian Colberg More articles by this author , Klaus-Peter JünemannKlaus-Peter Jünemann More articles by this author , Daniar OsmonovDaniar Osmonov More articles by this author , and Ulf LützenUlf Lützen More articles by this author View All Author Informationhttps://doi.org/10.1016/j.juro.2017.02.620AboutPDF ToolsAdd to favoritesDownload CitationsTrack CitationsPermissionsReprints ShareFacebookTwitterLinked InEmail INTRODUCTION AND OBJECTIVES The aim of this study was to evaluate the diagnostic value of SPECT/CT and planar lymphoscintigraphy in preoperative imaging of sentinel lymph nodes in penile cancer patients with non-palpable inguinal lymph nodes. METHODS Radio-labelling of sentinel nodes was performed by intradermal and peritumoral injection of 150MBq Tc-99 m-labelled nanocolloids according to the two day protocol. Image acquisition of planar scintigraphies was carried out by a twin head gamma camera (Siemens, ECAM and Symbia S) and indirect body contouring. Additionally, we subsequently performed SPECT/CT of the abdomen und inguinal regions using a twin-head hybrid camera system (Siemens Symbia T and Symbia Intevo). Imaging data of both modalities were prospectively evaluated by two experienced physicians in consensus reading in 52 groins of 26 patients with this tumor entity. RESULTS A total of 71 SLNs in 37 groins were identified by planar scintigraphy. Non-visualization was observed in 15 (28.8%) inguinal basins using planar scans. 82 SLNs in 42 groins were detected by SPECT/CT (non-visualization in 10 (19.2%) groins). SPECT/CT revealed 8 inguinal hotspots as shown by planar imaging in 7 groins as false positive. 19 inguinal SLNs in 16 groins were missed on planar imaging and could be detected by SPECT/CT only. In contrast to 2D planar scintigraphy, SPECT/CT allowed to determine the precise anatomical localization of the SLNs in all 42 groins. CONCLUSIONS SPECT/CT is capable of detecting SLNs missed by planar imaging, it reduces the number of false positive findings and shows the morphological location of SLNs more accurately. If available, SPECT/CT should be used for preoperative SLN imaging in penile cancer patients with non-palpable inguinal lymph node status. © 2017FiguresReferencesRelatedDetails Volume 197Issue 4SApril 2017Page: e223-e224 Advertisement Copyright & Permissions© 2017MetricsAuthor Information Carsten Maik Naumann More articles by this author Moritz Franz Hamann More articles by this author Christian Colberg More articles by this author Klaus-Peter Jünemann More articles by this author Daniar Osmonov More articles by this author Ulf Lützen More articles by this author Expand All Advertisement Advertisement PDF downloadLoading ...