In this study 24 patients who had conventional erect lateral X-ray pelvimetry had a CT pelvimetry done after delivery to complete the pelvimetry views. The erect lateral pelvimetry was read independently by a Consultant Radiologist, Consultant Obstetrician and a Medical Officer training in Obstetrics and Gynaecology. Using CT pelvimetry as the 'gold standard' (as the error of measurement was known with the machine used) the 3 readings were compared. There was no statistical difference in the values suggesting that X-ray pelvimetry is comparable to CT pelvimetry. However CT pelvimetry is preferred, if available, because of the lower dose of radiation involved, more comfort for the patient and shorter time in performing the procedure. Measurements done are easily read directly from the CT console.
Mass vaccination of all newborns against hepatitis B virus infection has been implemented in Malaysia since January 1989. The significance of perinatal transmission of hepatitis B virus and the prevention of the disease are discussed. Routine screening of 6443 mothers in the University Hospital showed an overall carrier rate of 1.9%; whilst this was high amongst the Chinese (4.7%), a significant number of Malays were also infected (1.6%). The mechanism of perinatal transmission of hepatitis B and the important role of routine screening of antenatal mothers in eradicating the disease are discussed.