Clinical Application of Multi-slice CT Enhancement and Multi-planar Reformation in the Diagnosis of Gastric Cardia Carcinoma

Objective:To investigate the clinical application of multi-slice CT(MSCT)enhancement and multi-planar reformation(MPR)in the diagnosis of gastric cardia carcinoma.Methods:48 patients with gastric cardia carcinoma proved by gastroscopy and surgery underwent MSCT pre contrast and hiphasic(arterial phase and portal venous phase)contrast scanning as well as MPR.the CT appearances of gastric cardia carcinoma were analyzed.Results:Only 5 patients had tumor just involving gastric cardia.The remaining 43 patients had tumor involved gastric cardia and fundus,of them,additional in- volvement of lower esophagus was assessed in 12 patients,involvement of lesser curvature of stomach in 14 patients and gastric body as well as gastric antrum invasion in 6 patients.The thickness of tumor invasion ranged from 11～42mm with the median as 20mm.There were 41 cases showing multi-layer and 7 cases showing monolayer enhancement.26 cases had adjacent lymphatic metastasis.5 cases had liver metastasis and 9 cases had gastric serosa invasion.Conclusion:MSCT con trast enhancement and MPR provided helpful information for the diagnosis of gastric cardia carcinoma,and showed impor- tant application wdue in the clinical practice.