caa a22 4500 475781929 CHVBK 20180406123647.0 cr unu---uuuuu 170329e20001101xx s 000 0 eng 10.1007/s004640000345 doi (NATIONALLICENCE)springer-10.1007/s004640000345 Prospective comparison of endorectal ultrasound, three-dimensional endorectal ultrasound, and endorectal MRI in the preoperative evaluation of rectal tumorsrid="" [Elektronische Daten] Preliminary resultsid=""Presented at the annual meeting of the Society of American Gastrointestinal Endoscopic Surgeons (SAGES), Atlanta, Georgia, USA, 29 March–1 April 2000 [M. Hünerbein, W. Pegios, B Rau, T. J. Vogl, R. Felix, P. M. Schlag] Background: The aim of this study was to compare the value of endorectal ultrasound (EUS), three-dimensional (3D) EUS, and endorectal MRI in the preoperative staging of rectal neoplasms. Methods: Thirty consecutive patients with rectal tumors were assessed by EUS and endorectal MRI. Additionally, three-dimensional ultrasound was performed in a subgroup of 25 patients. EUS data were obtained with a bifocal multiplane transducer (10 MHz) and processed on a 3D ultrasound workstation. MR imaging was carried out with a 1.5 T superconducting unit using an endorectal surface coil. Results: EUS was carried out successfully in all 30 patients, whereas endorectal MRI was not feasible in two patients. Compared with the histopathological classification, EUS and endorectal MRI correctly determined the tumor infiltration depth in 25 of 30 and 28 patients, respectively. The comparative accuracy of EUS, 3D EUS, and endorectal MRI in predicting tumor invasion was 84%, 88%, and 91%, respectively. EUS, three-dimensional EUS, and endorectal MRI enabled us to assess the lymph node status correctly in 25, 25, and 24 patients, respectively. Both three-dimensional EUS and endorectal MRI combined high-resolution imaging and multiplanar display options. Assessment of additional scan planes facilitated the interpretation of the findings and improved the understanding of the three-dimensional anatomy. Conclusion: The accuracy of three-dimensional EUS and endorectal MRI in the assessment of the infiltration depth of rectal cancer is comparable to conventional EUS. One advantage of both methods is the ability to obtain multiplanar images, which may be helpful for the planning of surgery in the future. Springer-Verlag New York Inc., 2000 Key words: Endorectal ultrasound — Three-dimensional endorectal ultrasound — Rectal cancer — Staging — Endorectal MR imaging — Surface coil — Cancer nationallicence Hünerbein M. Department of Surgery and Surgical Oncology, Robert Rössle Hospital, Humboldt University, 13122 Berlin, Germany, DE aut Pegios W. Department of Radiology, Charité University Hospital, 13353 Berlin, Germany, DE aut Rau B. Department of Surgery and Surgical Oncology, Robert Rössle Hospital, Humboldt University, 13122 Berlin, Germany, DE aut Vogl T. J. Department of Radiology, Charité University Hospital, 13353 Berlin, Germany, DE aut Felix R. Department of Radiology, Charité University Hospital, 13353 Berlin, Germany, DE aut Schlag P. M. Department of Surgery and Surgical Oncology, Robert Rössle Hospital, Humboldt University, 13122 Berlin, Germany, DE aut https://doi.org/10.1007/s004640000345 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s004640000345 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Hünerbein M. Department of Surgery and Surgical Oncology, Robert Rössle Hospital, Humboldt University, 13122 Berlin, Germany, DE aut NATIONALLICENCE 700 1- Pegios W. Department of Radiology, Charité University Hospital, 13353 Berlin, Germany, DE aut NATIONALLICENCE 700 1- Rau B. Department of Surgery and Surgical Oncology, Robert Rössle Hospital, Humboldt University, 13122 Berlin, Germany, DE aut NATIONALLICENCE 700 1- Vogl T. J. Department of Radiology, Charité University Hospital, 13353 Berlin, Germany, DE aut NATIONALLICENCE 700 1- Felix R. Department of Radiology, Charité University Hospital, 13353 Berlin, Germany, DE aut NATIONALLICENCE 700 1- Schlag P. M. Department of Surgery and Surgical Oncology, Robert Rössle Hospital, Humboldt University, 13122 Berlin, Germany, DE aut Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer