Ultrasound Doppler flow studies of the ovarian and uterine arteries.

摘要: The feasibility of studying ovarian arterial blood flow has been demonstrated, using an ultrasonic method combining real-time imaging and pulsed Doppler (the 'duplex' method). Results a percutaneous full-bladder technique were validated by comparison with use ultrasound probe applied directly to the arteries at laparotomy. demonstrated qualitatively quantitatively distinct patterns compared internal external iliac arteries. From recorded waveforms pulsatility index (PI) reflecting vascular impedance was calculated. PI found be lower, indicating increased flow, in artery supplying ovary carrying dominant follicle or corpus luteum. Serial studies suggest that this change occurs early stage menstrual cycle, possibly before can recognized its size hormone production. Uterine also detectable, more accurately abdominally than vaginally, changes typical late pregnancy already present, though lesser degree, first trimester.