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  • Title: Staging of gastric cancer with 16-channel MDCT.
    Author: Chen CY, Wu DC, Kang WY, Hsu JS.
    Journal: Abdom Imaging; 2006; 31(5):514-20. PubMed ID: 16465577.
    Abstract:
    Early detection and accurate preoperative staging of gastric cancer are clinically important because the prognosis and choice of an optimal therapeutic approach are directly related to the stage of a neoplasm at time of presentation. Multidetector row computed tomography is a potentially powerful tool for noninvasive gastric evaluation. When thin collimation is used, near-isotropic imaging of the stomach is possible. Proper air distention of the stomach is used with virtual gastroscopic images; the technique is able to evaluate endoluminal lesions of the stomach and assist in early detection of gastric cancer. Adequate water-filled dynamic multiplanar reformatted images allow the radiologist to choose the optimal imaging plane to accurately evaluate depth of tumor invasion of the gastric wall and perigastric fat plane infiltration, identify a thin fat plane between a tumor and adjacent organs, avoid partial volume averaging effects, and better differentiate lymph nodes from small perigaskric vessels. Thus, the combination of air distention and hydrodistention of the stomach and dynamic contrast-enhanced multidetector row computed tomography with near-isotropic imaging offer improved diagnosis and staging of gastric cancers.
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