So, we would like to propose this proposal to focus on the tumor angiogenesis in endometrial cancer patients. Endometrial cancer patients who will receive staging surgery will be enrolled in this study. Functional MRI, and transvaginal sonography will be undergone before the surgery in each patient. The angiogenesis-related growth factors will be evaluated later from the surgical specimens. The clinical pathologic items, various angiogenic parameters obtained from the MRI and sonography, and angiogenesis-related factors will be compared and correlated together. There are several purposes in this study. First, we will evaluate and compare tumor angiogenesis surveyed from functional MRI and power Doppler sonography in endometrial cancer patients who receive surgery. Second, we will evaluate whether tumor angiogenesis could be a marker to predict the disease severity of endometrial cancer. Third, we will elucidate the role of functional MRI in endometrial cancer.