Reproducibility of repeated human regional splenic blood flow measurements using [15O] water and positron emission tomography. |
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| Authors: | H Taniguch S Kunishima T Koh A Oguro H Yamagishi |
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| Affiliation: | Digestive Surgery, Kyoto Prefectural University of Medicine, Japan. taniguchi@1surg.kpu-m.ac.jp |
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| Abstract: | The reproducibility of measurement of regional splenic blood flow by dynamic positron emission tomography (PET) using [15O]water was evaluated. In 19 patients, the correlation between the first and second of two serial dynamic measurements was significant (P=1.78 x 10(-6); r=0.858). The regression equation was y = 1.06x, and the slope of the line described had a 95% confidence interval of 0.09. The error apparent between the two measurements was 0.129 (95% confidence interval 0.059). The results demonstrated sufficiently good reproducibility for measurements of regional splenic blood flow with PET and [15O]water to suggest use of this method for serial measurements intended to detect change, including drug effects. |
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