Preoperative T staging of gastric cancer: comparison between MR including diffusion weighted imaging and contrast enhanced CT scan / 中华胃肠外科杂志
Chinese Journal of Gastrointestinal Surgery
;
(12): 245-249, 2014.
Article
in Chinese
| WPRIM
| ID: wpr-239423
ABSTRACT
<p><b>OBJECTIVE</b>To compare the accuracy of CT and MR including diffusion-weighted imaging(DWI) in preoperative diagnosis and T staging of gastric cancer.</p><p><b>METHODS</b>Forty-one patients with gastric cancers proved by gastroscopy biopsy from November 2011 to August 2012 were prospectively enrolled. They underwent contrast enhanced CT and MR imaging (including DWI, T2 weighted and dynamic enhanced imaging) preoperatively. Two radiologists interpreted CT and MR images for detecting and staging each patient independently. With the reference of post-operative histopathological findings, T staging accuracy of CT and MR imaging was calculated and compared. Inter-observer agreement was also evaluated.</p><p><b>RESULTS</b>Overall T staging accuracy in MR including DWI was significantly higher than that in CT imaging(87.8% vs. 65.9%, P=0.004). MR had a better inter-observer agreement than CT(Kappa=0.813, 0.603, respectively).</p><p><b>CONCLUSION</b>MR including DWI can improve preoperative T staging accuracy of gastric cancer significantly, which deserves recommendation for clinical application.</p>
Full text:
Available
Index:
WPRIM (Western Pacific)
Main subject:
Pathology
/
Stomach Neoplasms
/
Biopsy
/
Magnetic Resonance Imaging
/
Gastroscopy
/
Contrast Media
/
Diffusion Magnetic Resonance Imaging
/
Neoplasm Staging
Type of study:
Practice guideline
Limits:
Humans
Language:
Chinese
Journal:
Chinese Journal of Gastrointestinal Surgery
Year:
2014
Type:
Article
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