[Intrarectal 3-dimension ultrasonography in preoperative staging of rectal carcinoma].
From Nov. 1991 to Dec. 1992 63 patients were examined by preoperative intrarectal 3-dimension ultrasonography (IR3DUS) for the staging of their rectal carcinoma. IR3DUS assessed the tumor penetration depth with an accuracy of 93.65 percent (P < 0.001, Kappa statistic). IR3DUS predicted lymphatic metastasis with an accuracy of 92.1 percent vs. 63.6% by CT. Correlated with histopathologic findings, the overall accuracy of the preoperative staging utilizing IR3DUS was 93.65 percent (P < 0.001, Kappa statistic). Therefore, IR3DUS is considered a very useful tool for the assessment of the depth of cancer invasion in the rectal wall and perirectal lymph node metastasis.
Affiliated Hospital, Shandong Medical University, Jinan.
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Dai
D000328:Adult; D000368:Aged; D005260:Female; D006801:Humans; D008207:Lymphatic Metastasis; D008297:Male; D008875:Middle Aged; D009361:Neoplasm Invasiveness; D009367:Neoplasm Staging; D011446:Prospective Studies; D012004:Rectal Neoplasms / Q000000981:diagnostic imaging* / Q000473:pathology; D014057:Tomography, X-Ray Computed; D014463:Ultrasonography