The diagnostic accuracy of T1stage by MRI was 87.5%, with 94.7% specificity and 60% sensitivity (n=24, κ -value = 0.58; P-value<0.05). The diagnostic accuracy of T2stage by MRI was 87.5%, with 88.2% specificity and 85.7% sensitivity (n=24, κ-value= 0.69; P-value<0.05). The diagnostic accuracy of T3stage by MRI was 91.7% with 93.3% specificity and 88.9% sensitivity (n=24, κ -value= 0.82; P-value<0.05). The diagnostic accuracy of T4stage by MRI was 95.8%, with 100% specificity and 75% sensitivity (n=24, κ-value= 0.80; P-value<0.05).
Conclusion:
Because of high accuracy and specificity in determining the depth of invasion of gastric cancer, MRI proves to be an invaluable diagnostic tool in the preoperative T staging of gastric cancer and therefore is very useful in sidestepping unnecessary surgery by supervising the selection of treatment decisions