A study on comparative analysis of SUVs before and after correction with use of recovery coefficient (RC) in partial volume effect (PVE)

Autor: C.-B. Kim, J.-S. Kim, S.-K. Park, B.-J. Han, W.-Y. Jung, K.-R. Dong, W.-K. Chung, Jae-Hwan Cho, H.-S. Ko
Rok vydání: 2013
Předmět:
Zdroj: The Imaging Science Journal. 62:11-15
ISSN: 1743-131X
1368-2199
DOI: 10.1179/1743131x12y.0000000023
Popis: This study calculated the recovery coefficient (RC) to correct for the partial volume effect (PVE) of a positron emission tomography/computed tomography (PET/CT) scanner by conducting a phantom experiment and analysing the standardised uptake value (SUVs) before and after the correction by applying the calculated RC to the data of a real PET/CT scan. An American College of Radiology (ACR) phantom was used to dilute 20·72 MBq (0·56 mCi) fluorine-18 fluoro-deoxy-glucgose (18F-FDG) uniformly in 1000 ml distilled water, which was injected into a hot cylinder (2·5, 1·6, 1·2 and 0·8 cm in diameter). In addition, 18F-FDG in 33·30 MBq (0·90 mCi), 22·20 MBq (0·60 mCi) and 16·65 MBq (0·45 mCi) was diluted uniformly in 6440 ml distilled water, which was filled with background radioactivity. Subsequently, the experiment was conducted three times under a hot cylinder to background radioactivity ratio (H/B ratio) of 4∶1, 6∶1 and 8∶1. The equipment of Biograph Truepoint 40 was used to conduct a phantom experiment and sc...
Databáze: OpenAIRE