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Application of the parametric scan in the investigation of uteroplacental blood flow

We developed a new radioisotope technique to measure placental blood flow for the early detection of placental insufficiency. Using the parametric scan, placental perfusion was measured in 80 late-pregnant women. The T-maximum pictures obtained made it possible to differentiate between the vascular...

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Bibliographic Details
Published in:European Journal of Nuclear Medicine 1985-01, Vol.10 (5-6), p.286-287
Main Authors: BODIS, J, ZAMBO, K, NEMESSANYI, Z, MATE, E, CSABA, I. F
Format: Article
Language:English
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Summary:We developed a new radioisotope technique to measure placental blood flow for the early detection of placental insufficiency. Using the parametric scan, placental perfusion was measured in 80 late-pregnant women. The T-maximum pictures obtained made it possible to differentiate between the vascular and intervillous phases of placental blood flow. The time period of intervillous phase calculated as the percentage of the whole placental Tmax was given as the intervillous perfusion index (IPI). It was demonstrated that the IPI was significantly higher in pregnancies complicated with intrauterine growth retardation (64.2% +/- 16.5%), hypertension (60.0 +/- 15.2) and oedema (57.9% +/- 10.1%) than in the control group (33.7% +/- 10.5%). These data suggest that the first sign of placental insufficiency is the prolongation of the IPI which is likely to precede the quantitative reduction of placental perfusion.
ISSN:0340-6997
1619-7089
DOI:10.1007/BF00254477