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The influence of geometrical factors in 131I-Hippuran renography

C C Nimmon, J M McAlister and W R Cattell

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Using a particular collimated NaI scintillation detector and a kidney phantom containing 131I, the dependence of the resulting count rates on collimator-kidney geometry has been determined. These results have been used to calculate the geometrical contribution to the error in the measurement of relative effective renal plasma flow (RFP) by 131I-Hippuran renography. Combination of this error with that from natural movement and statistical fluctuations, as observed using a dose of 10 mu Ci 131I-Hippuran, has led to the estimation of a corresponding potential error of 11%. Values of the potential error which is defined as the 99% probability range, have been calculated covering the range of RFP.


PACS

87.57.U- Nuclear medicine imaging

87.56.Da Ancillary equipment

87.19.rh Fluid transport and rheology

02.50.Ng Distribution theory and Monte Carlo studies

47.63.-b Biological fluid dynamics

Subjects

Fluid dynamics

Computational physics

Biological physics

Medical physics

Dates

Issue 1 (January 1975)



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