Objective To determine the clinical value of hysteroscopy technology in high risk planned abortion. Methods A retrospective study of clinical manifestation, medical tests, treatment methods and effects of 97 cases (hospitalized from June, 2013 to October 2014) was made in the research. Of the 97 cases, 53 underwent UAE, and 44 did not undergo UAE. The risk factors and treatment features were concluded. Results The hemorrhage risk relates to menopause period. The longer menopause period, the higher the hemorrhage risk will be. The hemorrhage risk has nothing to do with HCG. For those whose menopause is less than 56 days, hemorrhage risk showed no difference between groups with or without UAE. For those whose menopause is less than 56 days, hemorrhage risk decreases in group with UAE. Hemorrhage risk and hysterectomy possibility are higher if menopause has happened for more than 11 weeks. Conclusion Cesarean scar pregnancy needs to be detected and treated early, in this way, the possibility for complications can be lowered. For cases whose menopause has been more than e weeks, hemorrhage risk should be cautioned.

Objective To explore the value of Gadofluorine M,a novel M RI enhancement agent,in the diagnosis the early radiation brain injury.Methods Seventy-two Wistar rats were randomly divided into 5 equal groups.To establish the radiation injury model,the rat's posterior brain was irradiated with 0(blank controls),25,35,45,55,and 65 Gy,respectively.After irradiation MR plain scanning and Gadofluorine M enhancement scanning (after the T1WI and T2WI scanning Gf at the dosage of 0.1 mmol/kg was injected intravenously and scanning was performed again 12 h later) were performed once a week for 8 weeks.Another 12 rats were randomly divided into 2 equal groups to exposure to 55 and 65Gy,respectively,and MR scanning was performed once a week for 8 weeks since the third week after MR.After T1WI and T2WI scanning Gd-DTPA was injected intravenously,MR was conducted again 30 min later,and Gf was injected intravenously (Gd-DTPAenhancement and Gf enhancement contrast).The MR image and the pixel count were compared.Since the third week 2 rats from the Gf enhancement scanning group and 1 rat from the Gd-DTPA enhancement and Gf enhancement contrast were killed after MR with their brains taken out to undergo pathological examination.Results No abnormal signal changes were found in MRI in 25 and 35 Gy groups within 2 months after irradiation.A high signal in the Gf enhancement T1 WI image was found in 45,55,and 65 Gy groups within the period of 4-6 weeks after radiation.The signal intensity was significantly higher than that of the control,25,and 35 Gy groups(F =2.15,P <0.05).The emerge time of this signal was negatively correlated with the dose of radiation(r =-0.62,P < 0.05).When there was no obvious change was found by Gd-DTPA enhancement,a high signal representing change of injury could be found in Gf enhancement in the same rat.The signal intensity was significantly enhanced in Gf enhancement compared to the Gd-DTPA enhancement (F = 2.74,P <0.01).Histopathology examination of the 65 Gy group showed frosted degeneration in part of the region,however,no obvious necrotic damage was found in other groups.Conclusions The Gf enhancement change appears before histopathological changes,it helps discover early radiation injury in brain.Compared to the regular MRI and Gd-DTPA enhancement,Gadofluorine M enhancement has obvious advantage and is worth further research and application.