Comparison of Different Methods of Multislice Spiral Computed Tomography for the Preoperative Gastric Cancer Staging ()
ABSTRACT
Background: To evaluate the
diagnostic possibilities of multislice spiral computed tomography (MSCT) in
preoperative gastric cancer staging. Methods: A total of 108 patients who had
radical gastric cancer surgery were evaluated with MSCT two weeks before
surgery in two different stomach imaging methods (water or urographin aqueous
solution). Tumor staging was evaluated using the Tumor-Node-Metastasis (TNM)
staging. The results from the imaging modalities were compared with the
postoperative histopathological outcomes. Results: CT scanning with stomach
contrast agent is more accurate (p < 0.05) and specific (p = 0.001) in
determining stage T2; however hydrodynamic method is more sensitive (p < 0.005)
and has higher PPV (p < 0.005). For stage T3, there was no significant
difference between accuracy, positive and negative prognostic values; scanning
with stomach contrast was more sensitive (p = 0.016), and hydrodynamic method
was more specific (p = 0.026). For stage T4, hydrodynamic method was more
sensitive (p = 0.028), but there was no significant difference between
accuracy, specificity, positive and negative prognostic values. Conclusions:
According to our study results, CT scanning with contrast agent is more accurate
and specific in preoperative determination of gastric cancer T2 stage; however
hydrodynamic method is more sensitive in preoperative T3 stage determination. We
find no significant difference between positive and negative prognostic values
of these methods. Scanning with contrast agent was more sensitive, and
hydrodynamic method was more specific. Hydrodynamic method is more sensitive in
determining gastric cancer T4 stage. CT scan is informative in preoperative gastric
cancer M staging; however it is not informative enough for preoperative N staging.
Share and Cite:
Zviniene, K. , Krasnovaite, I. and Kiudelis, M. (2015) Comparison of Different Methods of Multislice Spiral Computed Tomography for the Preoperative Gastric Cancer Staging.
Surgical Science,
6, 427-435. doi:
10.4236/ss.2015.69061.