Abstract: Objective To explore the application of case-based learning method in the practice teaching for medical imaging technology undergraduates.Methods A total of 46 undergraduate interns from the 2015 four-year medical imaging technology of Sichuan University were recruited.They were divided into 2 groups:experimental group(23 persons) and control group(23 persons).Case-based learning method was used in experimental group,and the traditional lecture based learning method was used in control group.The theoretical-test scores,operational-test scores and questionnaire results of the two groups were compared.Results The subjective,total and operational scores of the experimental group were higher than those of the control group,with statistical significance [(28.29±2.18)vs (23.50±3.34),(74.17±6.79)vs(69.46±6.02),(75.75±5.37)vs(70.42±5.88),all P<0.05].The stimulation of subject interest,the mobilization of classroom atmosphere,the cultivation of clinical thinking,the exercise of self-study ability and the analysis of difficult problems were better than those of the control group.The differences were statistically significant [4 (3,4) vs 3 (2,3),4 (3,4) vs 2 (2,3),4 (3,4)vs 2 (2,3),4 (3,4) vs 2 (2,2),3 (3,4) vs 2 (2,3),all P<0.05].Conclusions Case-based learning method in the practice teaching of medical imaging technology may improve undergraduates'clinical analysis ability,practical operation ability,learning enthusiasm and self-learning ability.

Key words: Case-based learning, Teaching method, Medical imaging technology, Practice, Medical student