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Multiparametric Cardiac 18F-FDG PET in Humans: Kinetic Model Selection and Identifiability Analysis.
Zuo, Yang; Badawi, Ramsey D; Foster, Cameron C; Smith, Thomas; López, Javier E; Wang, Guobao.
Afiliação
  • Zuo Y; Department of Radiology, University of California Davis Medical Center, Sacramento, CA 9817.
  • Badawi RD; Department of Radiology and Department of Biomedical Engineering, University of California Davis Medical Center, Sacramento, CA 9817.
  • Foster CC; Department of Radiology, University of California Davis Medical Center, Sacramento, CA 9817.
  • Smith T; Department of Internal Medicine, University of California Davis Medical Center, Sacramento, CA 9817.
  • López JE; Department of Internal Medicine, University of California Davis Medical Center, Sacramento, CA 9817.
  • Wang G; Department of Radiology, University of California Davis Medical Center, Sacramento, CA 9817.
IEEE Trans Radiat Plasma Med Sci ; 4(6): 759-767, 2020 Nov.
Article em En | MEDLINE | ID: mdl-33778234
Cardiac 18F-FDG PET has been used in clinics to assess myocardial glucose metabolism. Its ability for imaging myocardial glucose transport, however, has rarely been exploited in clinics. Using the dynamic FDG-PET scans of ten patients with coronary artery disease, we investigate in this paper appropriate dynamic scan and kinetic modeling protocols for efficient quantification of myocardial glucose transport. Three kinetic models and the effect of scan duration were evaluated by using statistical fit quality, assessing the impact on kinetic quantification, and analyzing the practical identifiability. The results show that the kinetic model selection depends on the scan duration. The reversible two-tissue model was needed for a one-hour dynamic scan. The irreversible two-tissue model was optimal for a scan duration of around 10-15 minutes. If the scan duration was shortened to 2-3 minutes, a one-tissue model was the most appropriate. For global quantification of myocardial glucose transport, we demonstrated that an early dynamic scan with a duration of 10-15 minutes and irreversible kinetic modeling was comparable to the full one-hour scan with reversible kinetic modeling. Myocardial glucose transport quantification provides an additional physiological parameter on top of the existing assessment of glucose metabolism and has the potential to enable single tracer multiparametric imaging in the myocardium.
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Tipo de estudo: Guideline Idioma: En Revista: IEEE Trans Radiat Plasma Med Sci Ano de publicação: 2020 Tipo de documento: Article

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Tipo de estudo: Guideline Idioma: En Revista: IEEE Trans Radiat Plasma Med Sci Ano de publicação: 2020 Tipo de documento: Article