MR imaging for the preoperative planning of sphincter-saving surgery for tumors of the lower third of the rectum: use of intravenous and endorectal contrast materials.

作者： Michael Urban , Harald R. Rosen , Nikolaus Hölbling , Wolfgang Feil , Gerhard Hochwarther

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摘要: PURPOSE: To evaluate the value of magnetic resonance (MR) imaging with a flexible surface coil in predicting resectability tumors lower rectum and feasibility sphincteral salvage. MATERIALS AND METHODS: In prospective study, 61 patients histologically proved primary adenocarcinoma or middle third (<12 cm from pectinate line) were examined at double-contrast-material–enhanced MR circular polarized coil. RESULTS: Assessment anal infiltration was excellent, specificity 98% sensitivity 100%. determination tumor into adjacent organs (T4), 100%, 90%, surgical histologic findings as standards. While showed negative nodes 40 (stage N0 imaging), examination 27 positive 34. At imaging, 68%, s...

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MR imaging for the preoperative planning of sphincter-saving surgery for tumors of the lower third of the rectum: use of intravenous and endorectal contrast materials.

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MR imaging for the preoperative planning of sphincter-saving surgery for tumors of the lower third of the rectum: use of intravenous and endorectal contrast materials.

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