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| Transva ginal Color Doppler Imaging of Uterine Contractions in Early Pregnancies: Significance of Uterine Contractions in Early Pregnancy Fa i l u re |
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| Eun Ju Lee, M.D., Chang Jin Han, M.D., Jung Ho Suh, M.D.,Hyuck Chan Kwon, M.D. |
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| Department of Diagnostic Radiology, Obstetrics and Gynecology Ajou University, School of Medicine |
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| PURPOSE: To assess uterine contractions in early pregnancies using transvaginal color Doppler
sonography(TVCDS) and to determine the role of uterine contractions in the diagnosis of early pregnancy fail-ure.
MATERIALS and METHODS: 76 patients with abnormal pregnancy diagnosed by sonography or histopathology up to 10
weeks of gestation and 38 normal pregnant women as the control group were examined with TVCDS. The pres-ence
of uterine contractions was determined by complete or partial disappearance of the color flow signals of
vessels within myometrium, and the direction, amplitude(grade 1-3), and interval of uterine contractions were
also evaluated.
RESULTS: Uterine contractions were identified in 42(55.3%) of 76 patients with abnormal pregnancy, whereas they
were detected only in 2(5.3%) of 38 normal pregnant women who had initial grade 1 contraction but disap-peared
in the follow-up study. In 26 patients with blighted ovum or missed abortion, 15 patients(57.7%) showed
uterine contraction of grade 1 in 3 cases, grade 2 in 8 cases, and grade 3 in 4 cases and interval from 45 seconds
to 5 minutes. In 30 patients with inevitable or incomplete abortion, 23 patients(76.7%) showed uterine contrac-tion
of grade 1 in 2 cases, grade 2 in 9 cases, and grade 3 in 12 cases and interval from 1 to 5 minutes. 4(20%)of
20 patients with threatened abortion had uterine contraction of grade 2 and interval from 2 to 4 minutes. The p-resence
of uterine contractions was significantly different in abnormal pregnancies compared with that of nor-mal
and also among the three different groups of abnormal pregnancies, but the amplitude did not diff e r.
CONCLUSION: It is suggested that uterine contractions in early pregnancy are related to the cause of early pregnancy
failure or the evacuation of products of conception, and the presence of uterine contractions on TVCDS may be |
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| Keyword : Uterus, US, Ultrasound(US), Doppler studies, Pregnancy, US, Pregnancy, abnormalities |
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pdf파일 : 117이은주21.pdf 
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> Journal > Journal Search 
Journal of Korean Society of Ultrasound in Medicine 1999 ; 18 (2) : p.117-124
