The Study Of Clinical Application On Gastric Eminence Lesions & The Preoperative TNM Staging Of Gastric Cancer By Means Of Three-Dimensional & Four-Dimensional Ultrasonography

OBJECTIVE: An analysis was made about the diagnosis of gastric eminence lesions and the results of the preoperative TNM staging of gastric cancer by two-dimensional ultrasonography in contrast with three or four-dimensional ultrasonography to explore The study of Clinical Application on gastric eminence lesions & the preoperative TNM staging of gastric cancer by means of three-dimensional &four-dimensional ultrasonography.MATERIAL&METHODS: During March 2005 to February 2007, there were 87 cases of patients aged 26-77 with the average age 50 ,who suffered from gastric eminence lesions. The apparatuses used were GE Voluson730 three-dimensional color Doppler ultrasonography, 3.5HZ and LOGIQ 9 three-dimensional color Doppler ultrasonography, 3.5MH_z～5.5MH_z, 10MH_z . Firstly examined the patients on empty stomachs by two-dimensional ultrasonography, roughly observing their pathological changes, then told them to drink 500-600ml water without air to examine again by two, three, or four dimensional ultrasonography; when examining, observed the relationship among their pathological positions, shapes and surrounding tissues, preliminarily diagnosed the quality of gastric eminence lesions and performed the preoperative staging. Finally made a respective contrast between pathological results and check-up results by two, three, four dimensional ultrasonography, then figured out diagnostic accordance rates and made a statistic analysis of them.RESULT: 1.There were 87 cases of patients with gastric eminence lesions, of which 57 cases were stomach cancer, 9 cases polypus, 1 case leiomyoma,9 cases gastritis verrucosa, 11 cases benign gastric ulcer. Compared with the diagnosis by three-dimensional ultrasonography, the pathological diagnostic accuracy rate was 82.3%, the diagnostic accuracy rate being 67.8% by two-dimensional ultrasonography. According to statistic analysis, there existed significance difference (p<0.05), which meant the diagnostic accuracy rateby three,four-dimensional ultrasonography was obviously superior to that by two-dimensional ultrasonography. 2. There were 57cases of patients with stomach cancer, of which 51 cases were examined by three, four-dimensional ultrasonography, with check-up rate being 89%, and 42 cases were examined by two-dimensional ultrasonography, with check-up rate being 73.7%. Based on statistic analysis, there existed significance difference(p<0.05), which meant the check-up rate by three,four-dimensional ultrasonography was obviously superior to that by two-dimensional ultrasonography. By three, four-dimensional ultrasonography, the accuracy rate of the preoperative staging of stomach cancer was 82.4%, while by two-dimensional ultrasonography, the accuracy rate was 71.4%. According to statistic analysis, there was no significance difference (p>0.05), which meant by three, four-dimensional ultrasonography, the accuracy rate of the preoperative staging of stomach cancer had no obvious difference from that by two-dimensional ultrasonography.CONCLUSION: The examination was performed by ultrasonography after gastric cavity was appropriately full, and three-dimensional ultrasonography was used to rebuild pathological changes to shape three-dimensional structure, which was able to show related structures' three-dimensional shapes, interior structure, to make a more accurate analysis of Gastric Eminence Lesions than two-dimensional ultrasonography and to perform more correctly the preoperative staging of stomach cancer combined with two-dimensional ultrasonography.