Objective To discuss the clinical application of getting the images related to the partogram content using the intrapartum ultrasound. Methods One hundred twenty-three pregnant women who tried vaginal delivery in Huai'an Maternity and Children Hospital were included in this study. Intrapartum ultrasound was performed during the progression of labor every two hours. To obtain the images related to the fetal position by transabdominal or transperineal ultrasound in transverse view, determining the fetal head position; to obtain the images related to the fetal head station by transperineal ultrasound in mid-sagittal and transverse views , measuring the angle of progression (AOP) and the fetal head-perineum distance (HPD); to obtain the images related to the cervical dilatation by transperineal ultrasound in transverse view, measuring the anteroposterior diameter of the cervical dilatation. Results This study included 123 pregnant women, 123 images were obtained related to the fetal position; 122 images of AOP related to the fetal head station were measured; and 123 images of HPD related to the fetal head station were measured; 121 images related to the cervical dilatation, all the images can clearly displayed various ultrasonic markers, which can be used to determine the fetal position, the fetal head station and the cervical dilation. Conclusion Intrapartum ultrasound could get the images related to the partogram content, it could be studied to use in labor.

Objective:To investigate the classification of head shaking nystagmus（HSN） and its clinical value in vestibular peripheral diseases. Methods:Clinical data of 198 patients with peripheral vestibular disorders presenting with HSN were retrospectively analyzed. Video Nystagmograph（VNG） was applied to detect spontaneous nystagmus（SN）, HSN, and Caloric Test（CT）. The intensity and direction of SN and HSN as well as the unilateral weakness（UW） and direction preponderance（DP） values in caloric test was analyzed in patients. Results:Among the 198 patients with vestibular peripheral disease, there were 105 males and 93 females, with an average age of（49.1±14.4） years （range: 14-87 years）. One hundred and thirty seven patients were diagnosed as Vestibular Neuritis（VN）, 12 as Meniere's Disease（MD）, 41 as sudden deafness（SD） and 8 as Hunt's syndrome accompanied by vertigo. Among them, there were 116 patients in the acute phase, including 68 cases（58.6%） with decreased HSN, 4 cases（3.4%） with increased HSN, 5 cases（4.3%） with biphasic HSN, 38 cases（32.8%） with unchanged HSN, and 1 case（0.9%） with perverted HSN. There were 82 cases in the non-acute phase, 51 cases（62.2%） with decreased HSN, 3 cases（3.6%） with increased HSN, 9 cases（11.0%） with biphasic HSN, and 19 cases（23.2%） with unchanged HSN. In biphasic HSN, the intensity of phase I nystagmus was usually greater than that of phase II, and the difference was statistically significant（P<0.01）. There was no correlation between HSN type and course of disease or DP value. The intensity of HSN was negatively correlated with the course of disease（r=-0.320, P<0.001） and positively correlated with DP value（r=0.364, P<0.001）, respectively. The intensity of unchanged nystagmus and spontaneous nystagmus were（8.0±5.7） °/s and（8.5±6.4）°/s, respectively. There was no statistically significant difference in the intensity of nystagmus before and after shaking the head. Conclusion:HSN can be classified into five types and could be regarded as a potential SN within a specific frequency range （mid-frequency）. Similarly, SN could also be considered as a common sign of unilateral vestibular impairment at different frequencies. HSN intensity can reflect the dynamic process of vestibular compensation, and is valuable for assessing the frequency of damage in peripheral vestibular diseases and monitoring the progress of vestibular rehabilitation.
Male ; Female ; Humans ; Adult ; Middle Aged ; Vestibular Function Tests ; Retrospective Studies ; Nystagmus, Pathologic/diagnosis* ; Vertigo/diagnosis* ; Electronystagmography ; Vestibular Diseases/diagnosis*