常见影像学检查方法对早期胃癌诊断效果分析

Analysis of Common Imaging Examination Methods for the Diagnosis of Early Gastric Cancer

目的:本文就五种常见影像学检查方法对早期胃癌的诊断效果进行分析概述。方法:检索中国知网(CNKI)、中华医学期刊全文数据库、万方资源数据库、PubMed及Medline数据库中口服超声造影检查法、X线气钡双重对比造影、电子计算机断层扫描、正电子发射断层成像及磁共振成像在早期胃癌诊断中的应用和最新进展。结果:口服超声造影检查法因可帮助检出胃癌高风险人群,而被较多用于早期胃癌的初筛;X线气钡双重对比造影被选择性地应用于早期胃癌的筛查和定位中;电子计算机断层扫描常被用于早期胃癌的术前分期;正电子发射断层成像被较多应用于早期胃癌复发和预后情况预测;磁共振成像可对早期胃癌的定位及放化疗和靶向治疗后的效果评估起到作用,但常不用作对早期胃癌的分期。结论:口服超声造影检查法、X线气钡双重对比造影、电子计算机断层扫描、正电子发射断层成像及磁共振成像均能对早期胃癌的筛查、诊断、分期及预后预测等起到积极作用,从而对临床诊断早期胃癌提供有效依据。

Objective:This article analyzes and summarizes the diagnostic effectiveness of five common imaging examination methods for early gastric cancer.Methods:Retrieve the application and latest progress of oral contrast-enhanced ultrasonography,X-ray aer-barium double contrast radiography,computed tomography,positron emission tomography-computed tomography,and magnetic resonance imaging in the diagnosis of early gastric cancer from CNKI,Chinese Medical Journal Full Text Database,Wanfang Resource Database,PubMed and Medline Database.Results:Oral contrast-enhanced ultrasonography is commonly used for early screening of early gastric cancer because it can help detect high-risk individuals;X-ray aer-barium double contrast radiography is selectively applied in the screening and localization of early gastric cancer;computed tomography is often used for the diagnosis and preoperative staging of early gastric cancer;positron emission tomography-computed tomography is widely used in predicting the recurrence and prognosis of early gastric cancer;magnetic resonance imaging can play a role in the localization,staging,and evaluation of the effectiveness of radiotherapy,chemotherapy,and targeted therapy for early gastric cancer,but it is often not used for staging early gastric cancer.Conclusion:Oral contrast-enhanced ultrasonography,X-ray aer-barium double contrast radiography,computed tomography,positron emission tomography-computed tomography,and magnetic resonance imaging can all play a positive role in the screening,diagnosis,staging,and prognosis prediction of early gastric cancer,thus providing an effective basis for clinical diagnosis of early gastric cancer.