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The first three weeks assessed by transvaginal color Doppler
1Department of Obstetrics and Gynecology, University of Zagreb, Sveti Duh Hospital, Croatia.
Journal of Perinatal Medicine
|January 1, 1996
Summary
Transvaginal color Doppler ultrasound assesses ovarian and uterine blood flow, aiding early human development understanding. Resistance and pulsatility indices in abortions are higher, suggesting prognostic value for threatened cases.
Area of Science:
- Reproductive Medicine
- Medical Imaging
- Gynecology
Background:
- Transvaginal color Doppler enables detailed study of ovarian and uterine perfusion.
- Understanding early human development is enhanced by assessing blood flow in pregnant and non-pregnant patients.
Purpose of the Study:
- To investigate the role of transvaginal color Doppler in assessing reproductive organ perfusion.
- To correlate blood flow indices with pregnancy outcomes and uterine receptivity.
Main Methods:
- Utilized transvaginal color Doppler to measure resistance index (RI) and pulsatility index (PI) of follicular, luteal, uterine, radial, and spiral arteries.
- Compared Doppler indices in spontaneous and stimulated cycles, normal and abnormal pregnancies, and across gestational ages.
Main Results:
- Follicular RI decreases before ovulation; luteal blood flow velocity increases post-ovulation.
- Abnormal pregnancies (threatened, incomplete, missed abortions) show significantly higher RI and PI compared to normal pregnancies.
- Endometrial perfusion appears more indicative of uterine receptivity than uterine artery perfusion alone.
Conclusions:
- Transvaginal color Doppler provides valuable insights into reproductive physiology and pathology.
- Luteal flow monitoring may offer prognostic value in threatened abortions.
- Doppler assessment of endometrial and uterine artery perfusion is crucial for evaluating uterine receptivity and pregnancy status.