Hoon-Hee Park MS, RT, Presenter: Nothing to Disclose

Jung Yul Kim, Abstract Co-Author: Nothing to Disclose

Seung Jae Lee, Abstract Co-Author: Nothing to Disclose

Jae Sam Kim MS, Abstract Co-Author: Nothing to Disclose

Chang Ho Lee MS, Abstract Co-Author: Nothing to Disclose

Jong Doo Lee MD,PhD, Abstract Co-Author: Nothing to Disclose

As the number of domestic medical institutions installing PET/CT is increasing rapidly, the transfer of PET/CT images among medical institutions is increasing. Even in a hospital, it is increasing to use several PET/CT systems to follow-up on patients. However, there is hardly any article which is evaluated among SUVs come from various PET/CT systems. In this study, the reliability of the SUV was assessed.

The six PET/CT systems (A Discovery ST, 2 Discovery STe, 2 Biograph Duo, and a Biograph TurePoint 40) from the medical institutions and NEMA PET phantom TM were used. The correction-chart was clinically applied to 10 volunteer patients.

The SUV on a bed, the change scale of the SUV on the slices, and which followed by measuring time, and the coefficient of variability of the SUV from -11.0 to 9.90 % were in the range of international standards(±10%) except only one PET/CT system. Likewise, using data of the differences among the SUVs, we had a correction chart which has the range from 0.803 to 1.246. A regression analysis was applied for clinical assessment and the statistical significance was approved by the p value which was under 0.005.

Although studies have been made on the variation of the SUV, there is little attention on the standardization of the SUV. Using this study, the quantitatively comparable data about the SUV were served through the correction-chart, it would help to have more corrective diagnosis.

 The correction chart can demonstrate a variation of SUV and is compared SUV of PET/CT systems between medical institutions.  

Park, H, Kim, J, Lee, S, Kim, J, Lee, C, Lee, J, A Study to Obtain the Reliability of the SUV in PET/CT Systems.  Radiological Society of North America 2009 Scientific Assembly and Annual Meeting, November 29 - December 4, 2009 ,Chicago IL. http://archive.rsna.org/2009/8007861.html