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Estimation of the weight of chorionic villus samples obtained from first trimester pregnancies by transcervical aspiration |
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| Authors: | Melanie Newport Dr Dulcie V Coleman Klim McPherson |
| Institution: | 1. Cytogenetics Unit, St Mary's Hospital Medical School, London W2, U.K.;2. Department of Community Medicine, Gibson Laboratories Building, Radcliffe Infirmary, Oxford, U.K. |
| Abstract: | Eight obstetricians experienced in chorionic villus sampling were asked to estimate the weight of samples of villi with and without a reference photograph. Referral to the photograph significantly improved the accuracy of their estimations. |
| Keywords: | Chorionic villi Transcervical aspiration Prenatal diagnosis |