[Endoluminal sonography as a preoperative staging method in rectal carcinoma].
The selection of an appropriate surgical procedure for primary rectal cancer depends on the degree of local invasion of the tumor and its location. Computed tomography allows better preoperative staging than is possible by clinical staging. Endoluminal sonography demonstrates the different layers of the rectal wall as described by TNM-staging. Comparison of preoperative ultrasound staging and postoperative histopathological staging gave an overall accuracy of 83% in all of our consecutive 63 prospectively examined patients. In 11% the tumor was overstaged and in 6% understaged. Comparing clinical staging, computed tomography and endoluminal sonography in all patients with palpable but not stenotic tumors, endoluminal sonography gave an accuracy of 89% compared with 71% with clinical staging and 78% with computed tomography. The results demonstrate the reliability of the new staging method in selecting the surgical procedure (local excision - resection/amputation) in tumors of the lower rectum. Promising results with endoluminal sonography are also reported in the follow-up of patients operated on for rectal cancer.
Herzog
U
U
Chirurgische Abteilung, St. Claraspital, Basel.
D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D009361:Neoplasm Invasiveness; D009367:Neoplasm Staging / Q000379:methods*; D011446:Prospective Studies; D012004:Rectal Neoplasms / Q000000981:diagnostic imaging* / Q000473:pathology; D012680:Sensitivity and Specificity; D014057:Tomography, X-Ray Computed; D014463:Ultrasonography
Die endoluminale Sonographie als präoperative Staging-Methode beim Rektumkarzinom.