RESUMO
Objective To investigate the role of pulmonary ventilatioa/perfusion imaging in evaluating thrombolytic therapy in pulmonary embolism (PE).Methods Pulmonary ventilation/perfusion imagng was performed before and one week and three months after thrombolytic therapy in 43 patients with acute PE.Results Among 421 abnormal pulmonary segments in 43 PE cases,199(47.3%) and 231(54.9%) segments were restored to normal 1 week and 3 months later (P<0.05).Of two groups,more abnormal pulmonary segments were restored to normal in those with less than one week's onset (P<0.01).Conclusion As a non-invasive diagnostic method, pulmonary ventilation/perfusion imaging plays an important role in evaluating the therapeutic effectiveness of thrombolytic therapy in patients with PE.
RESUMO
In order to evaluate our teaching results and improve the teaching quality,we designed this study to analyze the scores of nuclear medicine examination for the students of 2001 majoring in clinical medicine.There were 345 students participating in the examination.The results showed that the scores was Gassion distribution,the average score was 82.26,and the difficulty and discrimination of the test paper were appropriate.This analysis method as an objective index can be used to evaluate the response of teaching in nuclear medicine as well as improve the quality of test paper.