Evaluation of the preoperative staging of rectal cancer by magnetic resonance imaging / 中华胃肠外科杂志
Chinese Journal of Gastrointestinal Surgery
;
(12): 132-135, 2008.
Article
in Chinese
| WPRIM
| ID: wpr-273877
ABSTRACT
<p><b>OBJECTIVE</b>To evaluate the value of MRI in preoperative staging of rectal cancer.</p><p><b>METHODS</b>The data of 156 rectal cancer patients,undergone MRI scans from December 2004 to June 2006 in our hospital, were analyzed retrospectively. Findings of MRI were compared with postoperative pathological examinations.</p><p><b>RESULTS</b>Intracavitary localized parenchyma tumors were seen in 72 cases, and intestinal wall abnormal incrassation or stricture in other 84 cases from MRI scan. Sixteen cases had rectal polyps simultaneously, 2 cases ovarian cysts, 13 cases anterior-sacral metastases and 2 cases bone metastases. The sensitivity and specificity of T(1-2), T(3) and T(4) rectal cancer by MRI examination were 25%(8/32), 93.3%(84/90), 94.1%(32/34) and 100%(124/124), 57.6%(38/66), 96.7%(118/122) respectively. In MRI imaging, metastatic para-rectal lymph node was diagnosed as the diameter >5 mm or abnormal border or mixed resonance, with a sensitivity of 85.1%(80/94) and specificity of 45.2%(28/62).</p><p><b>CONCLUSION</b>MRI has high accuracy for preoperative staging of rectal cancer, and is useful to detect the serosal infiltration and lymph node metastasis.</p>
Full text:
Available
Index:
WPRIM (Western Pacific)
Main subject:
Pathology
/
Rectal Neoplasms
/
Magnetic Resonance Imaging
/
Retrospective Studies
/
Lymphatic Metastasis
/
Methods
/
Neoplasm Staging
Type of study:
Observational study
Limits:
Adult
/
Aged
/
Aged80
/
Female
/
Humans
/
Male
Language:
Chinese
Journal:
Chinese Journal of Gastrointestinal Surgery
Year:
2008
Type:
Article
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