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OBJECTIVE To evaluate whether the number of ovarian antral follicles, ovarian volume, and ovarian stromal blood flow change with age and to prospectively analyze whether three-dimensional ultrasonographic measurements predict ovarian response and IVF outcome. DESIGN Prospective analysis. SETTING Assisted reproductive unit. PATIENT(S) Fifty-six(More)
OBJECTIVE To measure the flow velocity of the uterine, radial, spiral, and ovarian arteries during the periovulatory period in spontaneous and induced ovarian cycles with confirmed ovulation. DESIGN Daily measurements during the periovulatory period in 78 patients attending an infertility clinic because of the male factor in infertility. RESULTS Uterine(More)
AIM To describe the evolution of placental vascularization during a normal course of gestation and the blood flow 3D power Doppler indices obtained by "placental vascular biopsy." METHODS A prospective study was carried out on 99 normal singleton pregnancies from 14 to 40 weeks. Placental vascularization was evaluated by 3D power Doppler ("placental(More)
OBJECTIVE The objective was to determine the diagnostic accuracy of three-dimensional (3D) sonography and 3D power Doppler imaging, used together with standard 2D transvaginal grayscale and color/power Doppler modalities, for preoperative sonographic assessment of suspected ovarian lesions. METHODS Five-year retrospective analysis was performed by our(More)
Transvaginal color flow Doppler was used to study uterine flow and fibroid arterial supply. These studies were carried out in 101 patients with palpable uterine fibroids and 60 women attending the clinic for annual checkups. Blood flow impedance expressed as resistance index (RI), pulsatility index (PI), and blood velocity are calculated from the 5th to the(More)
OBJECTIVE To measure the flow velocity of the uterine and ovarian arteries through the menstrual cycle to determine there are changes. DESIGN Serial measurements throughout the menstrual cycle in women attending an infertility clinic, compared with volunteers coming for annual examinations. Transvaginal ultrasound-color flow Doppler was the investigative(More)
AIM To evaluate the developmental pattern of fetal hand movements and facial activity and expression during the second and third trimester of pregnancy by four-dimensional ultrasound (4D-US). SUBJECTS AND METHODS A total of 25 fetuses in uncomplicated pregnancies were analyzed; 15 fetuses at 13 to 16 weeks and 10 fetuses at 30 to 33 weeks of gestation(More)
AIM To construct normal standards for fetal neurobehavioral development using longitudinal observations through all trimesters by four-dimensional sonography. SUBJECT AND METHODS A group of 100 healthy normal singleton pregnancies were recruited for longitudinal 4D US examinations to evaluate fetal neurodevelopmental parameters between 7 to 40 weeks'(More)
The objective of this study was to investigate the usefulness of transvaginal color Doppler and three-dimensional power Doppler ultrasonography for the assessment of endometrial receptivity. A total of 89 patients undergoing in vitro fertilization procedures were evaluated for endometrial thickness and volume, endometrial morphology, and subendometrial(More)