Prenatal Ultrasonography And MRI Analysis Of Absence Of Cavum Septum Pellucidum

PART ONEPrenatal ultrasonography mesurement of cavum septum pellucidumObjective To measure the cavum septum pellucidum, and evaluate the relationship between BPD,HC and the size of cavum septum pellucidum.Methods Measure the CSP of300normal fetus was suspected in45pregnant women by prenatal US from January2009to November2010in Qingdao women&children hospital. Prenatal systemic ultrasonography was performed,analysing the findings of prenatal US and MR images and their following-ups.Results22(40%) fetuses were ACC in55pregnant women.20(36.4%) fetuses accompanied with other abnormalities and13(28.9%) fetuses were suspected to isolated absence of CSP.3fetuses were term born, and the oldest one was2.1years old up to now. all these cases are normal.Conclusion The US diagnosis of the absence of CSP should be examined continuously and combined with gest age. The characteristic of US diagnosis in absence of CSP maybe uncertain. PART TWOPrenatal ultrasonography analysis of absence of cavum septum pellucidumObjective To analyse the value of the ultrasonography (US) in the prenatal diagnosis of absence of cavum septum pellucidum (CSP). Methods Fetal absence of CSP was suspected in67pregnant women by prenatal US from January2009to June2011in Qingdao women&children hospital. Prenatal systemic ultrasonography was performed,analysing the findings of prenatal US and MR images and their following-ups.Results31(46.3%) fetuses were ACC in67pregnant women.22(2.8%) fetuses accompanied with other abnormalities and14(20.9%) fetuses were suspected to isolated absence of CSP.3fetuses were term born, and the oldest one was2.1years old up to now. all these cases are normal.Conclusion The US diagnosis of the absence of CSP should be examined continuously and combined with gest age. The characteristic of US diagnosis in absence of CSP maybe uncertain. PART THREEPrenatal MRI analysis of absence of cavum septum pellucidumObjective To analyse the value of the MRI in the prenatal diagnosis of absence of cavum septum pellucidum(CSP). Methods Fetal absence of CSP was suspected in55pregnant women by prenatal US from January2009to November2010in Qingdao women&children hospital. MR images was performed,analysing the findings of MR images and and their following-ups.Results42fetuses were performed MRI in55pregnant women.13ACC(31%) were diagnosed,20(47.6%) fetuses accompanied with other abnormalities and9(21.4%) fetuses were suspected to isolated absence of CSP.3fetuses were term born, and the oldest one was2.1years old up to now. untill now all these cases are normal.Conclusion AS the second choise,the MRI diagnosis of the absence of CSP is more correctable than US. In the diagnosis of CSP absence, MRI should be helpful in clinical diagnosis.