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Comparison of stimulable phosphor technology and conventional screen-film technology in pediatric scoliosis.

One hundred consecutive patients being investigated for scoliosis were studied using a double cassette containing a conventional film screen and a stimulable phosphor plate. The images were separated, randomised and scored thrice by three radiologists for anatomic structure visualisation. The exposure to the plate and film and repeat rate were measured. Scoliosis angles were comparable on both sets of images, however, visualisation of vertebrae, vertebral end plates, pedicles, spinous processes and other structures were significantly improved (p < 0.0001). Intra- and inter-observer reliability was high with good intraclass correlation. There was a 40% potential exposure reduction, and retakes were decreased from 3 to 0%. We conclude that stimulable phosphor images give better anatomic structure visualisation with potential radiation exposure reduction and lower repeat rate.

Child↗

Less is more: the risks of multiple births. The Institute for Science, Law, and Technology Working Group on Reproductive Technology.

OBJECTIVE: To review the medical, social, and financial risks caused by the birth of multiples that need to be addressed in policy and practice. RESULT(S): Many risks of multiple births are described in the literature. The medical risks to the offspring include death, low birth weight, deformational plagiocephaly, and other physical and mental disabilities. Risks to the women include premature labor, premature delivery, pregnancy-induced hypertension, toxemia, gestational diabetes, and vaginal-uterine hemorrhage. Children born in multiples face difficulty socializing, developmental delays, and behavioral problems, whereas their parents risk exhaustion, depression, and anxiety. In addition to personal costs faced by families, society often bears the financial costs of overburdened hospitals, caps on insurance and/or inability of parents to cover expenses. CONCLUSION(S): Multiple births present potential acute and long-term medical risks to the pregnant woman and her children. However, more long-term follow-up research and more research on outcomes with higher-order multiples are needed. In designing practices and policies to improve the success of IVF while reducing the risk of multiples, it is important to balance the many interests involved. At a minimum, providers and patients need to be educated about the risks of multiple gestation so that steps can be taken to prevent adverse outcomes.

Female↗

The future of PCR technology: diversification of technologies and applications.

The polymerase chain reaction has had a major impact on research in molecular biology, on the human genome project and on the diagnosis of disease. In the future, this powerful technique will be increasingly applied to the study of individual genomic variation and to assess the genetic consequences of ecological and demographic events on past and contemporary populations of many organisms.

Animals↗