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Preoperative and postoperative CT staging of rectosigmoid carcinoma.

Publication ,  Journal Article
Thompson, WM; Halvorsen, RA; Foster, WL; Roberts, L; Gibbons, R
Published in: AJR Am J Roentgenol
April 1986

This study reports a 4 year experience using CT for preoperative staging and for evaluation of patients with rectal and sigmoid carcinoma after surgery. All patients were evaluated on a GE 8800 scanner using 1 cm contiguous slices. Only 15 of the 25 preoperative patients were staged correctly. The other 10 patients were understaged by CT. The accuracy of detecting local invasion was 70%, but only seven (35%) of 20 patients had accurate assessment of lymph nodes. The overall accuracy of CT staging in the 46 postoperative patients was 87%, with a sensitivity of 91% and a specificity of 72%. Most recurrences were found in the pelvis; 16 patients had liver metastases, and metastatic disease obstructing the ureters was detected in eight patients. On the basis of these results, it was concluded that CT should not be used routinely to preoperatively stage patients with rectosigmoid carcinoma. However, all patients who have undergone resection for rectal or sigmoid carcinoma should have aggressive CT evaluation including a baseline study at 2-4 months and then follow-up studies at every 6 months for at least 2 years. All new or enlarging masses should have CT-guided biopsies. This approach may prolong survival by detecting early asymptomatic recurrences.

Duke Scholars

Published In

AJR Am J Roentgenol

DOI

ISSN

0361-803X

Publication Date

April 1986

Volume

146

Issue

4

Start / End Page

703 / 710

Location

United States

Related Subject Headings

  • Tomography, X-Ray Computed
  • Sigmoid Neoplasms
  • Rectal Neoplasms
  • Preoperative Care
  • Postoperative Care
  • Nuclear Medicine & Medical Imaging
  • Neoplasm Recurrence, Local
  • Middle Aged
  • Male
  • Humans
 

Citation

APA
Chicago
ICMJE
MLA
NLM
Thompson, W. M., Halvorsen, R. A., Foster, W. L., Roberts, L., & Gibbons, R. (1986). Preoperative and postoperative CT staging of rectosigmoid carcinoma. AJR Am J Roentgenol, 146(4), 703–710. https://doi.org/10.2214/ajr.146.4.703
Thompson, W. M., R. A. Halvorsen, W. L. Foster, L. Roberts, and R. Gibbons. “Preoperative and postoperative CT staging of rectosigmoid carcinoma.AJR Am J Roentgenol 146, no. 4 (April 1986): 703–10. https://doi.org/10.2214/ajr.146.4.703.
Thompson WM, Halvorsen RA, Foster WL, Roberts L, Gibbons R. Preoperative and postoperative CT staging of rectosigmoid carcinoma. AJR Am J Roentgenol. 1986 Apr;146(4):703–10.
Thompson, W. M., et al. “Preoperative and postoperative CT staging of rectosigmoid carcinoma.AJR Am J Roentgenol, vol. 146, no. 4, Apr. 1986, pp. 703–10. Pubmed, doi:10.2214/ajr.146.4.703.
Thompson WM, Halvorsen RA, Foster WL, Roberts L, Gibbons R. Preoperative and postoperative CT staging of rectosigmoid carcinoma. AJR Am J Roentgenol. 1986 Apr;146(4):703–710.

Published In

AJR Am J Roentgenol

DOI

ISSN

0361-803X

Publication Date

April 1986

Volume

146

Issue

4

Start / End Page

703 / 710

Location

United States

Related Subject Headings

  • Tomography, X-Ray Computed
  • Sigmoid Neoplasms
  • Rectal Neoplasms
  • Preoperative Care
  • Postoperative Care
  • Nuclear Medicine & Medical Imaging
  • Neoplasm Recurrence, Local
  • Middle Aged
  • Male
  • Humans