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Diagnostic accuracy of multidetector row computed tomography in T- and N staging of gastric cancer with histopathologic correlation.

Authors
Hur, J; Park, MS; Lee, JH; Lim, JS; Yu, JS; Hong, YJ; Kim, KW
Citation
Journal of computer assisted tomography, 30(3):372-377, 2006
Journal Title
Journal of computer assisted tomography
ISSN
0363-87151532-3145
Abstract
PURPOSE: To evaluate the diagnostic accuracy of multidetector row computed tomography (MDCT) for the preoperative T- and N staging of gastric cancer.



MATERIALS AND METHODS: Eighty-four consecutive patients with gastric cancer underwent preoperative MDCT. Except for 15 patients who did not undergo surgery, 69 patients were included in our study. Two radiologists independently evaluated the T- and N staging on the axial CT images alone and in combination with the MPR images. For N staging, the new TNM and Japanese classifications were independently used. Differences in staging accuracy for T- and N staging were assessed using the McNemar test.



RESULTS: The overall T staging accuracy of the axial and combined axial and MPR images was as follows: 67% (47 of 70 cancers) versus 77% (54 of 70 cancers) (P=0.039). The overall N staging accuracy of the axial and combined axial and MPR images was as follows: 59% (41 of 69 cancers) versus 67% (46 of 69 cancers) (P=0.180, Japanese classification) and 54% (37 of 69 cancers) versus 59% (41 of 69 cancers) (P=0.109, TNM classification).



CONCLUSIONS: Using MPR images enables more accurate preoperative T staging of gastric cancer, but not for N staging in either classification system.
MeSH terms
AdultAgedFemaleHumansMaleMiddle AgedNeoplasm Staging/methods*Stomach Neoplasms/pathology*Stomach Neoplasms/radiography*Tomography, X-Ray Computed/methods*
PMID
16778609
Appears in Collections:
Journal Papers > School of Medicine / Graduate School of Medicine > Radiology
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