In this module you will be guided through the investigation of the fetal aortic isthmus and other vessels normally investigated during the fetal ultrasound examination. Recording of qualitative and quantitative parameters are discussed of which the fetal isthmic flow index (IFI) specific to the aortic isthmus. Uniformity in the choice of vascular sites and Doppler waveforms recording technique during pregnancy are essential to the reliability of the research project. Under the « Techniques » tab, you will find the investigation approach demonstration for every vascular site. Corresponding texts and examples of abnormal waveform recordings are also available.
Middle cerebral artery