Imaging Characteristics of MSCT and Guidance Value for Risk Classifications in the 39 Cases with Gastric Stromal Tumors
Objective To observe the imaging characteristics of multi-slice spiral computed tomography(MSCT),and to analyze their guidance value for risk classifications in the 39 cases with gastric stromal tumors.Methods A retrospective analysis was performed on the clinical data of 39 patients with gastric stromal tumors who were confirmed in the hospital between January 2019 and December 2023.All patients underwent MSCT examination.The imaging characteristics of MSCT were observed,and risk classifications were evaluated.According to different risk classifications,39 patients were divided into extremely low-risk+low-risk group(n=12),medium-risk group(n=15)and high-risk group(n=12).The independent influencing factors to predict risk classifications were analyzed by multivariate Logistic regression analysis.Results There were significant differences in gastrointestinal bleeding among patients with different risk classifications(x2=6.608,P=0.037),but there was no significant difference in the other baseline data(P>0.05).There was no significant difference in tumor growth site,enhancement degree in arterial stage,venous stage and delayed stage among patients with different risk classifications(P>0.05),but there were significant differences in maximum tumor diameter,calcification,necrosis,tumor vessels,morphology,vessel-like enhancement,growth mode,boundary smoothness and enhancement mode(P<0.05).The maximum tumor diameter,morphology,growth mode and enhancement mode were independent influencing factors to predict risk classifications of gastric stromal tumors(P<0.05).Conclusion Imaging characteristics of MSCT are unique in gastric stromal tumors.Imaging characteristics such as maximum tumor diameter,morphology,growth mode and enhancement mode can determine risk classifications of tumors so as to better guide decision-making of clinical protocols.