PubMed · 3963099
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R J Stock. 1986. Sterilization failures.. https://doi.org/10.1016/0002-9378(86)90512-0
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OBJECTIVE: Preliminary evaluation of three-dimensional (3D) imaging for early diagnosis of ectopic pregnancy. STUDY DESIGN: Twelve asymptomatic patients before six weeks of amenorrhea and with no feature of intrauterine nor of ectopic pregnancy at traditional bidimensional ultrasonography were considered. Laparoscopy showed ectopic pregnancy in 9 cases. RESULTS: 3D transvaginal ultrasonography preceding laparoscopy showed small ectopic gestational sac in 4 cases. Moreover the fallopian tube on the side of ectopic pregnancy could be imaged in all cases. This was possible because the fallopian tube was surrounded by a fine hypoechogenic border, an apparently specific feature which had not been reported previously. CONCLUSION: These preliminary data suggest that 3D ultrasonography is an effective procedure for early diagnosis of ectopic pregnancy in asymptomatic patients before six weeks of amenorrhea.