两组血液动力学变化与其术前比较差异无显著性（P>0·05）；
There were no significant hemodynamic changes in the two groups compared with baseline values (P>0.05);
本文应用超声心动图测定正常各期孕妇的心脏功能及血液动力学变化。
It is reported in this paper that Echocardiography was used to detect the cardiac performance and hemodynamics in normal pregnant women.
结论MR灌注成像可观察脑病变的血液动力学变化，在术前对评估胶质瘤的病理学分级有帮助。
Conclusion MR perfusion imaging can show the hemodynamic changes of brain lesions. It's useful in the assessment of histologic grade of gliomas.
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