Comparison of endoanal magnetic resonance imaging and computerized tomography in the preoperative staging of rectal cancer: A pilot study

A. P. Zbar, N. M. DeSouza, N. Strickland, M. Pignatelli, W. A. Kmiot

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

Accurate preoperative determination of the stage of rectal cancer will identify patients likely to benefit from adjuvant therapies. The aim of this study was to compare preoperative computerized tomography and endoanal magnetic resonance imaging using an internal coil with the operative findings and histology of resected low rectal cancer (i.e., carcinoma located 0.5 cm on imaging was regarded as positive for malignancy. Results showed that T staging was correctly predicted by endoanal magnetic resonance imaging in 73.3% (11/15) and by computerized tomography in 86.8% (13/15). Nodal staging was correct in 50% (7/14) by magnetic resonance imaging and in 78.6% (11/14) by computerized tomography. Magnetic resonance imaging was successful in predicting overall TN staging in 64.3% (9/14) and computerized tomography was accurate in TN staging in 78.6% (11/14). Magnetic resonance imaging and computerized tomography equally predicted the state of lateral resection margins in 92.9% (13/14). It is concluded that endoluminal magnetic resonance imaging is of similar accuracy to computerized tomography in the assessment of tumour depth, worse in the determination of nodal status and similarly predictive of lateral resection margin status prior to total mesorectal excision.

Original languageEnglish
Pages (from-to)61-66
Number of pages6
JournalTechniques in Coloproctology
Volume2
Issue number2
Publication statusPublished - 1998
Externally publishedYes

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Rectal Neoplasms
Tomography
Magnetic Resonance Imaging
Neoplasms
Histology
Carcinoma

Keywords

  • CT
  • Endoanal
  • Magnetic resonance imaging
  • Preoperative staging
  • Rectal cancer

ASJC Scopus subject areas

  • Gastroenterology
  • Surgery

Cite this

Comparison of endoanal magnetic resonance imaging and computerized tomography in the preoperative staging of rectal cancer : A pilot study. / Zbar, A. P.; DeSouza, N. M.; Strickland, N.; Pignatelli, M.; Kmiot, W. A.

In: Techniques in Coloproctology, Vol. 2, No. 2, 1998, p. 61-66.

Research output: Contribution to journalArticle

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