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The value of PET/CT for preoperative staging of advanced gastric cancer: Comparison with contrast-enhanced CT
- Source :
-
European Journal of Radiology . Aug2011, Vol. 79 Issue 2, p183-188. 6p. - Publication Year :
- 2011
-
Abstract
- Abstract: Aim: To date, no data are available on the use of PET/CT for preoperative staging of gastric cancer. We attempted to evaluate the value of PET/CT for preoperative staging of advanced gastric cancer, and to compare the use of PET/CT with contrast-enhanced CT (CECT). Materials and methods: We analyzed PET/CT of 78 patients with surgically proven advanced gastric cancer who had undergone preoperative CECT. Qualitative analysis was conducted by assessing the presence of primary tumors and metastases with PET/CT and CECT. Results: Among 71 patients who underwent a gastrectomy, 69 primary tumors (93%) were diagnosed by PET/CT, while 64 primary tumors (90%) were detected by CECT (p =0.55). For regional lymph node metastasis, the sensitivity, specificity, positive predictive value, negative predictive value and accuracy of PET/CT vs. CECT were 41% vs. 25% (p =0.00019), 100% vs. 92% (p =0.31), 100% vs. 98% (p =0.46), 26% vs. 42% (p =0.14), and 51% vs. 72% (p =0.00089), respectively. Conclusion: Overall, PET/CT showed comparable diagnostic performance to CECT in diagnosing primary tumors and regional lymph node metastases, though PET/CT was inferior to CECT for the sensitivity and accuracy in diagnosing regional lymph node metastases. Nevertheless, PET/CT would be useful when CECT findings were equivocal due to its high positive predictability. [Copyright &y& Elsevier]
Details
- Language :
- English
- ISSN :
- 0720048X
- Volume :
- 79
- Issue :
- 2
- Database :
- Academic Search Index
- Journal :
- European Journal of Radiology
- Publication Type :
- Academic Journal
- Accession number :
- 65044853
- Full Text :
- https://doi.org/10.1016/j.ejrad.2010.02.005