Diagnosis on the preoperative staging of rectal cancer by magnetic resonance imaging with water-bag in rectum.
- Author:
Chang-Qin WU
1
;
Bo-Lin YANG
;
Yun-Fei GU
Author Information
- Publication Type:Journal Article
- MeSH: Adult; Aged; Aged, 80 and over; Female; Humans; Magnetic Resonance Imaging; methods; Male; Middle Aged; Neoplasm Staging; methods; Rectal Neoplasms; pathology; Retrospective Studies
- From: Chinese Journal of Gastrointestinal Surgery 2008;11(3):246-248
- CountryChina
- Language:Chinese
-
Abstract:
OBJECTIVETo evaluate the accuracy of preoperative magnetic resonance imaging (MRI) with water-bag in rectum in prediction of pathological staging of rectal cancer.
METHODSClinical data of 19 patients with rectal carcinoma assessed by MRI with water-bag in rectum for tumour (T) and mesorectal nodal (N) staging were analyzed retrospectively. Preoperative MRI assessment was compared with postoperative histopathological findings.
RESULTSThe tumors were correctly staged by MRI in 15 patients, understaged in 2 and overstaged in 2. The accuracy of T stage was 78.9% (15/19). Mesorectal node were correctly staged in 11 patients, overstaged in 2 and understaged in 6. The accuracy of node staging was 57.9% (11/19), sensitivity was 3/9, and specificity was 80%(8/10).
CONCLUSIONPreoperative MRI with water-bag in rectum can not provide correct predictive data on mesorectal node stage, but has certain value in the T staging of rectal carcinoma.
