Role ofDual energy CT in diagnosis and preoperative staging of gastric carcinoma

Abstract

Introduction: Gastric cancer is one of the most common cancers worldwide with approximately 989,600 new cases and 738,000 deaths per year, accounting for about 8 percent of new cancers. A good prognosis for patients with this disease requires choosing the correct therapy, and making the right therapeutic choice requires accurate preoperative staging. The recent development of multi-detector row CT (MDCT) scanner has allowed imaging with a thinner section collimation, translating into increased quality on transverse computed tomography scans and multiplanar reconstruction, contributing to the improved accuracy of TNM staging. Nowadays MDCT has been widely used in preoperative staging of gastric cancer. However there are still some controversial problems. Aim of the Work:The aim of the study is to evaluate the clinical utility of dual energy spectral CT (DEsCT) in detection and pre-operative staging of gastric carcinoma. Methodology:Gastric carcinoma is still considered the second most frequent cause of cancer death worldwide, though the incidence and mortality decreased remarkably over the former 50 years. Conclusion:Stomach cancer has a multifactorial etiology whether dietary, genetic, environmental and behavioral where Helicobacter pylori (H. pylori) infection plays the major role in the pathogenesis. On the other hand; balanced diet comprising fruits and vegetables, improved sanitation and hygiene, screening and treatment of H. pylori infection, and follow- up of precancerous lesions are considered preventive tools Keywords:Role of Dual energy CT in diagnosis and preoperative staging of gastric carcinoma.