So, the investigators would like to propose this proposal to focus on the tumor angiogenesis in endometrial cancer patients. There are several purposes in this study. First, the investigators will evaluate and compare tumor angiogenesis surveyed from functional MRI and power Doppler sonography in endometrial cancer patients who receive surgery. Second, the investigators will evaluate whether tumor angiogenesis could be a marker to predict the disease severity of endometrial cancer. Third, the role of functional magnetic resonance imaging (MRI) in endometrial cancer will be elucidated.