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KMID : 0384620060170040246
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Korean Journal of Medical Physics
2006 Volume.17 No. 4 p.246 ~ p.251
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The Evaluation of SUV Using with and without Correction for Effect of Contrast Media in Whole Body PET/CT Imaging
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Nam So-Ra
Son Hye-Kyung
Lim Han-Sang
Park Hun-hee
Jo Hyu-Min
Lee Chang-Re
Kim Hee-Joung
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Abstract
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The purpose of this study was to evaluate SUV (standard uptake value) using different reconstruction methods in whole body PET/CT Imaging. PET/CT studies were peformed with and without correction for effect of contrast media. The patients data were acquired using GE DSTe commercial PET/CT system. The liver disease (hepatocellular carcinoma, HCC) and renal disease (renal ceil carcinoma, RCC) patients were selected for this study, The PET/CT data were reconstructed using post CT scan with and without correction for effect of contrast media. We selected ROIs (region of Interest) at the same location and same area for the same patient to compare SUVs in these two methods. For HCC and RCC, the average differences of SUVs were measured as , respectively. For HCC and RCC, the maximum differences of SUVs were measured as 4.3% and 1.9%, respectively. We observed that SUVs without correction for effect of contrast media were higher than SUVs with correction for effect of contrast media. However the differences of SUVs were very minimal. These results may be limited to HCC and RCC and further studies will be Heeded for other organs or diseases to see any changes in SUV with and without correction for effect of contrast media.
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KEYWORD
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Whole body PET/CT, Contrast media, SUV
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