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A new method for measuring regional distribution of placental blood flow is presented. After 2-5 mCi of 133Xe saline has been injected intravenously, the counts over the placenta are registered with a scintillation camera interfaced with a digital data storage and television readout system. Using "area of interest" technique, time activity curves are obtained for different regions. Analysis of the curves is based on two-exponential curve fitting. In normal pregnancy the mean intervillous flow in 16 healthy women was 125 ml/min/100 ml and myometrial flow 17 ml/min/100 g. The intervillous flow in the central part of the placenta was 55% higher than in the marginal parts. The myometrial flow in the placental area was nearly the same as outside the placenta.
J Kuikka, and
K Käär, and
P Jouppila, and
T Pyörälä, and
A Rekonen
July 1978,
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J Kuikka, and
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A Rekonen
September 1977,
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J Kuikka, and
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T Pyörälä, and
A Rekonen
September 1976,
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J Kuikka, and
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J Kuikka, and
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J Kuikka, and
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A Rekonen
December 1992,
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J Kuikka, and
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J Kuikka, and
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A Rekonen
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Zhurnal nevropatologii i psikhiatrii imeni S.S. Korsakova (Moscow, Russia : 1952),
J Kuikka, and
K Käär, and
P Jouppila, and
T Pyörälä, and
A Rekonen
January 1983,
Zhurnal nevropatologii i psikhiatrii imeni S.S. Korsakova (Moscow, Russia : 1952),
J Kuikka, and
K Käär, and
P Jouppila, and
T Pyörälä, and
A Rekonen
January 1979,
Stroke,
