Fetal head MRI usually takes 30 minutes, during this time the pregnant woman should follow the doctor’s requirements, and its results will be judged by the doctor. Before the fetal head magnetic resonance examination, pregnant women should remove all metal objects and electronic products from their body, so as not to affect the results of the examination. When doing the examination, pregnant women can choose the appropriate position for scanning and imaging. If the examination needs to cooperate with the breathing, there will be voice prompts, if the examination of pregnant women have panic, breath holding, fear and even intolerable and other discomforts, should immediately ask to stop the scan. If a woman’s mid-pregnancy ultrasound reveals an abnormality in the fetal brain, she may consider a fetal cranial MRI for further diagnosis, which is generally more accurate. A mid-pregnancy head MRI is a green, safe, high-resolution test that can show the condition of the fetal head more accurately and visualize lesions. Fetal cranial MRI should be performed under the guidance of a doctor and standardized treatment should be carried out according to the doctor’s judgment after the examination.