Investigation of abnormal first‐trimester gestations by color Doppler imaging

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Abstract
Color Doppler imaging was employed to assess the uteroplacental circulation in abnormal first‐trimester gestations. Included in the study were 40 blighted ova, 35 missed abortions, 10 trophoblastic diseases, and 3 ectopic gestations. Normal gestations served as a control group. Flow was detected more frequently in the blighted ova than in the missed abortions. Flow was detected in all cases of trophoblastic disease and ectopic gestations. Resistance to flow was significantly lower in the trophoblastic group as compared to the other groups. © 1993 John Wiley & Sons, Inc.