0000000000359747

AUTHOR

Alejandro Villalobos

showing 2 related works from this author

First-trimester neck abnormalities: three-dimensional evaluation.

1998

In order to study the first trimester ultrasonographic differences between nuchal translucency and hygroma colli, we rescanned 25 fetuses (13 with nuchal translucency and 12 with hygroma colli) using transvaginal and three-dimensional ultrasonography, after obtaining a fetal karyotype report. Our objective was to test the premise that the different physiopathologic mechanisms of both processes would be reflected in detectable sonographic differences. Our retrospective analysis showed that the most striking ultrasonographic difference was the presence of bullae as well as greater irregularity, extent, and amplitude of the membrane in cases of hygroma colli. Fetuses with simple nuchal translu…

medicine.medical_specialtyDiagnostico diferencialUltrasonography PrenatalNuchal translucencyPregnancymedicineRetrospective analysisHumansRadiology Nuclear Medicine and imagingHygroma colliRetrospective StudiesRadiological and Ultrasound Technologybusiness.industrySurgeryFirst trimesterFetal DiseasesPregnancy Trimester FirstHomogeneousHead and Neck NeoplasmsKaryotypingFemaleRadiologyLymphangioma CysticUltrasonographybusinessNeckJournal of ultrasound in medicine : official journal of the American Institute of Ultrasound in Medicine
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Polycystic ovarian syndrome: assessment with color Doppler angiography and three-dimensional ultrasonography.

1999

We conducted a three-dimensional ultrasonographic evaluation of the size and structure of the ovaries of women who had clinical and biochemical findings suggestive of polycystic ovary syndrome. We carried out a comparative color Doppler frequency and color Doppler amplitude study of the vascular patterns of these ovaries. This study involved 65 women of reproductive age with polycystic ovary syndrome and 25 eumenorrheic women who were not taking hormonal contraceptives and who had a body mass index below 25 kg/m2. Compared to controls, women with polycystic ovary syndrome had larger ovaries and thicker stroma, increased impedance in the uterine arteries, increased stromal vascularity with d…

AdultDuplex ultrasonographymedicine.medical_specialtymedia_common.quotation_subjectLuteal phaseVascularitymedicineHumansRadiology Nuclear Medicine and imagingCystObesityProspective StudiesUltrasonography Doppler ColorMenstrual cyclemedia_commonGynecologyRadiological and Ultrasound Technologymedicine.diagnostic_testbusiness.industryOvaryUterusmedicine.diseasePolycystic ovaryAngiographyFemalemedicine.symptombusinessBody mass indexPolycystic Ovary SyndromeJournal of ultrasound in medicine : official journal of the American Institute of Ultrasound in Medicine
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