Determination of the Input Function at the Entry of the Tissue of Interest and Its Impact on PET Kinetic Modeling Parameters

作者：Bentourkia M'hamed^*

来源：Molecular Imaging and Biology, 2015, 17(6): 748-756.

DOI：10.1007/s11307-015-0895-8

• PET imaging
• Input function
• Kinetic modeling
• Rate constants
• Blood volume
• Image analysis
• Factor analysis
• Independent component analysis

Quantitative positron emission tomography (PET) imaging is employed with several measurement protocols all relying on the a priori determination of the input IF). The standard technique to determine IF is by blood sampling. However, a unique IF determined in a subject for a given PET study, either defined by sampling or in the images, and commonly utilized for all analyzed tissues in that study equally at rest and during interventions, is expected to provoke biases in the rate constants and in tissue blood volume. The determination of a specific IF at the site of the tissue to be analyzed enhances PET accuracy and renders PET imaging less invasive.

• 出版日期2015-12