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KMID : 0363819840180010009
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Korean Journal of Nuclear Medicine
1984 Volume.18 No. 1 p.9 ~ p.17
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Radionuclide Quantitation of Left-to-Right Cardiac Shunts Using
Deconvolution Analysis
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吳演相/Oh, Yeon Sang
李明哲/趙普衍/高昌舜/Lee, Myung Chul/Cho, Bo Youn/Koh, Chang-Soon
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Abstract
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The purpose of this study is to investigate significance of new method for quantification of left to right cardiac shunts using deconvolution analysis as an adjunct to gamma variate ana
lysis in patients with bad bolus injection.
In the present study, quantitative radionuclide angiocardiography (QRAC) was performed
with and without deconvolution analysis (DA) in 37 patients with left to right shunt and 103 control patients without shunt.
The results obtained were as follows;
1) The mean value of QP/Qs in 103 control patients was 1.10+0.12 without DA, and was 1.01=0.03 with DA.
2) Correlation(r) between oximetry and QRAC with DA was 0.87 and correlation(r) betw
een oximetry and QR AC without D A was 0.61.
3) The 13 patients with left to right shunt, whose Qp/Qs was greater than 3.0 by QRAC without DA, was studied by DA.
Then the Qp/Qs values were measurable in these 13 patients by DA and they showed significant correlation with oximetry. (r=0.68)
The results indicate that deconvolution analysis technique for quantification of a left to
right shunt provides more reliable and accurate shunt quantification, and reduces the influences of poor bolus injection.
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KEYWORD
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