1999
Assessment of Doppler velocimetry of the fetal umbilical artery by multigate spectral Doppler scanning and traditional pulsed Doppler ultrasonography plus color flow mapping.
Prapas N, Mari G, Liang R, Copel J. Assessment of Doppler velocimetry of the fetal umbilical artery by multigate spectral Doppler scanning and traditional pulsed Doppler ultrasonography plus color flow mapping. Journal Of Ultrasound In Medicine 1999, 18: 831-835. PMID: 10591448, DOI: 10.7863/jum.1999.18.12.831.Peer-Reviewed Original ResearchThe Doppler cerebroplacental ratio and perinatal outcome in intrauterine growth restriction
Bahado-Singh R, Kovanci E, Jeffres A, Oz U, Deren O, Copel J, Mari G. The Doppler cerebroplacental ratio and perinatal outcome in intrauterine growth restriction. American Journal Of Obstetrics And Gynecology 1999, 180: 750-756. PMID: 10076158, DOI: 10.1016/s0002-9378(99)70283-8.Peer-Reviewed Original ResearchConceptsIntrauterine growth restrictionDoppler cerebroplacental ratioPerinatal outcomesCerebroplacental ratioBirth weightGrowth restrictionDoppler examinationUmbilical artery pulsatility index valuesStepwise logistic regression analysisAbnormal cerebroplacental ratioBrain-sparing effectLast Doppler examinationUmbilical artery DopplerUmbilical artery velocimetryPulsatility index valuesReceiver operator curve characteristicsReceiver operator characteristic curveLogistic regression analysisRegression analysisArtery DopplerPerinatal morbidityPerinatal complicationsWeeks' gestationNormal medianPerinatal problems
1998
Arterial and venous Doppler velocimetry in the severely growth‐restricted fetus and associations with adverse perinatal outcome
Ozcan T, Sbracia M, d'Ancona R, Copel J, Mari G. Arterial and venous Doppler velocimetry in the severely growth‐restricted fetus and associations with adverse perinatal outcome. Ultrasound In Obstetrics And Gynecology 1998, 12: 39-44. PMID: 9697283, DOI: 10.1046/j.1469-0705.1998.12010039.x.Peer-Reviewed Original ResearchMeSH KeywordsBlood Flow VelocityCerebral ArteriesFemaleFetal Growth RetardationFetusHumansInfant, NewbornPregnancyPregnancy OutcomePrognosisPulsatile FlowReference ValuesSensitivity and SpecificitySignal Processing, Computer-AssistedSurvival RateUltrasonography, Doppler, ColorUltrasonography, PrenatalUmbilical ArteriesUmbilical VeinsConceptsAdverse outcome parametersAdverse perinatal outcomesGrowth-restricted fetusesOutcome parametersApgar scorePerinatal outcomesDuctus venosusPerinatal deathNeonatal intensive care unitSevere intrauterine growth restrictionDuctus venosus Doppler velocimetryAbnormal Doppler velocimetryVenous Doppler velocimetryVenous Doppler waveformsRespiratory distress syndromeMiddle cerebral arteryRetinopathy of prematurityIntensive care unitIntrauterine growth restrictionDays of lifeOnly significant parameterApgar valuesPeriventricular leukomalaciaDistress syndromeFetal demise
1997
The effect of intravascular blood transfusion on the flow velocity waveform of the portal venous system of the anemic fetus
d'Ancona R, Rahman F, Ozcan T, Copel J, Mari G. The effect of intravascular blood transfusion on the flow velocity waveform of the portal venous system of the anemic fetus. Ultrasound In Obstetrics And Gynecology 1997, 10: 333-337. PMID: 9444047, DOI: 10.1046/j.1469-0705.1997.10050333.x.Peer-Reviewed Original ResearchConceptsFlow velocity waveformsPortal venous systemAnemic fetusesVelocity waveformsPortal hypertensionIntravascular transfusionPortal veinVenous systemNormal fetusesIntravascular blood transfusionNon-pulsatile flowBlood transfusionRhesus alloimmunizationGestational agePulsatile patternTransfusionFetusesPresence of pulsatilityHypertensionIncreased numberCardiac cyclePulsatileVeinAlloimmunizationUtero
1996
Adrenal artery velocity waveforms in the appropriate and small‐for‐gestational‐age fetus
Mari G, Uerpairojkit B, Abuhamad A, Copel J. Adrenal artery velocity waveforms in the appropriate and small‐for‐gestational‐age fetus. Ultrasound In Obstetrics And Gynecology 1996, 8: 82-86. PMID: 8883308, DOI: 10.1046/j.1469-0705.1996.08020082.x.Peer-Reviewed Original ResearchConceptsGestational age fetusesArtery pulsatility indexFlow velocity waveformsPulsatility indexVelocity waveformsAdrenal arteryFetal heart rate decelerationsHeart rate decelerationsPreterm deliveryCesarean sectionGestational ageDoppler ultrasonographyAdrenal glandBlood flowHigh incidenceNormal fetusesFetusesRate decelerationConfidence intervalsSuccess rateArteryUltrasonographyGestationIncidence
1995
Blood flow velocity waveforms of the abdominal arteries in appropriate‐ and small‐for‐gestational‐age fetuses
Mari G, Abuhamad A, Uerpairojkit B, Martinez E, Copel J. Blood flow velocity waveforms of the abdominal arteries in appropriate‐ and small‐for‐gestational‐age fetuses. Ultrasound In Obstetrics And Gynecology 1995, 6: 15-18. PMID: 8528795, DOI: 10.1046/j.1469-0705.1995.06010015.x.Peer-Reviewed Original ResearchConceptsGestational age fetusesPulsatility index valuesSuperior mesenteric arteryFlow velocity waveformsPulsatility indexSplenic arteryHepatic arteryMesenteric arteryRenal arteryVelocity waveformsAbdominal arteriesLower pulsatility index valuesSuperior mesenteric artery levelColor flow Doppler ultrasonographyBlood flow velocity waveformsHigher pulsatility indexLow pulsatility indexLow vascular resistanceSuccessful insonationArtery levelVascular resistanceDoppler ultrasonographyArterial waveformBlood flowNormal fetuses
1991
Can umbilical artery pulsatility index predict the outcome of fetuses with structural heart disease?
Copel J, Hobbins J, Kleinman C. Can umbilical artery pulsatility index predict the outcome of fetuses with structural heart disease? Journal Of Ultrasound In Medicine 1991, 10: 323-326. PMID: 1895374, DOI: 10.7863/jum.1991.10.6.323.Peer-Reviewed Original ResearchConceptsCongenital heart diseaseElevated pulsatility indexPulsatility indexHeart diseaseUmbilical artery PI valuesUmbilical artery pulsatility indexUmbilical artery Doppler waveformsNormal PI valuesArtery pulsatility indexOutcome of fetusesStructural heart diseaseEnd-diastolic velocityWeeks' gestationFatal anomalyCHD fetusesAnomalous fetusesDoppler waveformsFatal diseaseFetusesNormal populationDiseasePI valuesGestationNormal chromosomesLesions