Objective:To evaluate the accuracy of the helicobacter pylori stool antigen(HPSA) test for diagnosis of helicobacter pylori infection and detection after treatment.

• 目的:评价幽门螺杆菌粪便抗原(HPSA)检测在诊断幽门螺杆菌(HP)感染的准确性及治疗后复查价值。