Search Results - "Ursem, N. T. C."

Validation of the assessment of folate and vitamin B₁₂ intake in women of reproductive age: the method of triads by Verkleij-Hagoort, A.C, Vries, J.H.M de, Stegers, M.P.G, Lindemans, J, Ursem, N.T.C, Steegers-Theunissen, R.P.M

“…Objective: To validate the folate and vitamin B₁₂ intakes estimated by a food-frequency questionnaire (FFQ) designed to be used in a case-control study on the…”
Get full text

Maternal hyperhomocysteinaemia is a risk factor for congenital heart disease by Verkleij‐Hagoort, AC, Verlinde, M, Ursem, NTC, Lindemans, J, Helbing, WA, Ottenkamp, J, Siebel, FMH, Gittenberger‐de Groot, AC, De Jonge, R, Bartelings, MM, Steegers, EAP, Steegers‐Theunissen, RPM

“…Objective  To investigate the inter‐relation between mother and infant homocysteine, folate and vitamin B12 status and the risk of a child with congenital…”
Get full text

Doppler flow velocity waveforms in the embryonic chicken heart at developmental stages corresponding to 5–8 weeks of human gestation by Oosterbaan, A. M., Ursem, N. T. C., Struijk, P. C., Bosch, J. G., van der Steen, A. F. W., Steegers, E. A. P.

“…Objectives To obtain Doppler velocity waveforms from the early embryonic chicken heart by means of ultrasound biomicroscopy and to compare these waveforms at…”
Get full text

Umbilical venous volume flow in the normally developing and growth‐restricted human fetus by Boito, S., Struijk, P. C., Ursem, N. T. C., Stijnen, Th, Wladimiroff, J. W.

“…Objective To determine the reproducibility of measurement of umbilical venous volume flow components and to calculate umbilical venous volume flow in normal…”
Get full text

Systolic and diastolic ventricular function in the normal and extra‐embryonic venous clipped chicken embryo of stage 24: a pressure–volume loop assessment by Stekelenburg‐de Vos, S., Steendijk, P., Ursem, N. T. C., Wladimiroff, J. W., Poelmann, R. E.

“…Objectives Fluid mechanical forces affect cardiac development. In the chicken embryo, permanent obstruction of the right lateral vitelline vein by clipping…”
Get full text

Umbilical venous volume flow and fetal behavioral states in the normally developing fetus by Boito, S. M. E., Ursem, N. T. C., Struijk, P. C., Stijnen, T., Wladimiroff, J. W.

“…Objective To determine the relationship between umbilical venous (UV) volume flow and fetal behavioral states 1F (quiet sleep) and 2F (active sleep) in normal…”
Get full text

Fetal heart rate and umbilical artery flow velocity variability in intrauterine growth restriction: a matched controlled study by Vinkesteijn, A. S. M., Struijk, P. C., Ursem, N. T. C., Hop, W. C. J., Wladimiroff, J. W.

“…Objectives To study heart rate and umbilical artery blood flow velocity variability in growth‐restricted fetuses and investigate the influence of the autonomic…”
Get full text

Fetal heart rate and blood flow velocity variability in the presence of increased nuchal translucency: a preliminary study by Vinkesteijn, A. S. M., Ursem, N. T. C., Struijk, P. C., Wladimiroff, J. W.

“…Objective To study the power spectrum distribution of heart rate and umbilical artery flow velocity variability in fetuses with increased nuchal translucency…”
Get full text

OC151: Prenatal detection of cardiac anomalies: what is the additional value of detailed ultrasonography in the third trimester of pregnancy? by Wildschut, H. I. J., Alsma, J., Ursem, N. T. C.

Get full text

Fetal brain/liver volume ratio and umbilical volume flow parameters relative to normal and abnormal human development by Boito, S., Struijk, P. C., Ursem, N. T. C., Fedele, L., Wladimiroff, J. W.

“…Objectives To estimate fetal brain volume from head circumference and published postmortem data; to determine normal values for the fetal brain/liver volume…”
Get full text

Mild renal pyelectasis in the second trimester: determination of cut‐off levels for postnatal referral by Cohen‐Overbeek, T. E., Wijngaard‐Boom, P., Ursem, N. T. C., Hop, W. C. J., Wladimiroff, J. W., Wolffenbuttel, K. P.

“…Objective To establish guidelines for postnatal referral of fetuses presenting with mild pyelectasis in the second trimester of pregnancy. Methods In a…”
Get full text

OP18.04: Flow velocity waveforms in the chicken embryonic heart at developmental stages comparable with the first trimester of human pregnancy by Oosterbaan, A. M., Ursem, N. T. C., Struijk, P. C., van der Steen, A. F. W., Steegers, E. A. P.

Get full text

OP04.23: Impaired systolic and diastolic ventricular function after permanent extra‐embryonic venous obstruction, a pressure‐volume loop assessment in the stage‐24 chick embryo by Stekelenburg‐de Vos, S., Steendijk, P., Ursem, N. T. C., Wladimiroff, J. W., Poelmann, R. E.

Get full text

Power spectrum analysis of heart rate and blood flow velocity variability measured in the umbilical and uterine arteries in early pregnancy: a comparative study by Struijk, P. C., Ursem, N. T. C., Mathews, J., Clark, E. B., Keller, B. B., Wladimiroff, J. W.

“…Objective To compare power spectral derived variability parameters from the fetal side of the placental circulation with those from the maternal side of the…”
Get full text

Fetal heart rate and umbilical artery velocity variability in fetuses with congenital cardiac defects: a preliminary study by Ursem, N. T. C., Clark, E. B., Pagotto, L. T., Wladimiroff, J. W.

“…Objective To examine whether variabilities in fetal heart rate and umbilical artery flow velocity are possible markers for hemodynamic dysfunction in fetuses…”
Get full text

Fetal heart rate and umbilical artery velocity variability in pregnancies complicated by insulin‐dependent diabetes mellitus by Ursem, N. T. C., Clark, E. B., Keller, B. B., Wladimiroff, J. W.

“…Objectives To examine the variability in fetal heart rate and absolute flow velocity, which are possible hemodynamic markers of cardiovascular homeostasis in…”
Get full text

Do heart rate and velocity variability derived from umbilical artery velocity waveforms change prior to clinical pregnancy‐induced hypertension? by Ursem, N. T. C., Clark, E. B., Keller, B. B., Hop, W.C.J., Wladimiroff, J. W

“…Objective To investigate the hypothesis that alterations in heart rate variability, peak systolic velocity variability and time‐averaged velocity variability…”
Get full text

Doppler velocimetry of normal human fetal venous intrapulmonary branches by Laudy, J. A. M., Ursem, N. T. C., Mulder, P. G. H., Wladimiroff, J. W.

“…Objectives To describe the nature of flow velocity wave‐forms from fetal middle and distal venous pulmonary branches in the second half of normal pregnancy in…”
Get full text

Assessment of fetal heart rate variability and velocity variability by Doppler velocimetry of the descending aorta at 10–20 weeks of gestation by Ursem, N. T. C., Clark, E. B., Keller, B. B., Hop, W.C.J., Wladimiroff, J. W.

“…Objectives Determination of gestational age‐related modulations in fetal heart rate and descending aorta blood flow velocity in the early human fetus and…”
Get full text

Validation of the assessment of folate and vitamin B sub(12) intake in women of reproductive age: the method of triads by Verkleij-Hagoort, A C, de Vries, J H M, Stegers, M P G, Lindemans, J, Ursem, N T C, Steegers-Theunissen, R P M

“…Objective:To validate the folate and vitamin B sub(12) intakes estimated by a food-frequency questionnaire (FFQ) designed to be used in a case-control study on…”
Get full text