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Uterine Doppler
Last reviewed: 04.07.2025
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Uterine perfusion depends on the patient's reproductive age and the use of hormone replacement therapy. The normal spectrum of the uterine artery is characterized by high blood flow velocity, a resistance index greater than 0.5, and the presence of a postsystolic notch.
The value of the resistance index of the uterine artery and endometrial vessels within 0.4-0.5 may reflect an increase in normal perfusion in the second half of the cycle or indicate a neoplasm of the uterus or endometrium. A resistance index of less than 0.4 allows one to suspect a malignant neoplasm.
Uterine fibroids are typically characterized by peripheral increased vascularity. Perfusion of fibroids decreases in response to hormone replacement therapy. Doppler ultrasound is used to monitor the response to treatment.
Hormonal therapy in the setting of in vitro fertilization can significantly improve uterine perfusion. Some studies have shown that a pulsatility index greater than 3.0 is associated with suboptimal uterine perfusion and unsuccessful implantation of the transferred embryo.
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