NCT04660279

Dynamic FDG PET/CT: Optimization and Validation of Data Acquisition

Dynamic Wholebody FDG PET/CT - Next Generational Functional Imaging: Optimization and Validation of Data Acquisition

• Status: Completed
• Phase: N/A
• Study type: Interventional
• Enrollment: 20 (actual)
• Sponsor: Aarhus University Hospital · Academic / Other
• Sex: All
• Age: 18 Years – 85 Years
• Healthy volunteers: Accepted

Summary

Quantification of the metabolic rate of glucose from Dynamic Whole-Body PET examinations requires measurements of the time course of the radioactivity concentrations in arterial blood by blood sampling, and in the tissue of interest by dynamic PET. Invasive arterial blood sampling cannot be part of a standard examination, and therefore the blood samples need to be replaced by activity concentrations derived from the PET images, usually from small volumes in the descending aorta or left ventricle. Newly developed scanner software (Siemens) allows automated CT-based identification of blood pool regions and extraction of an image-derived blood input function from the corresponding PET data. However, this automated method needs validation, as it could be prone to systematic errors caused by limited spatial resolution, patient movement, and image reconstruction. We will use invasively measured arterial blood samples as a reference for validation of methods to extract non-invasive PET image-derived input functions and quantify any systematic errors that could propagate to the resulting parametric images.

Conditions

• Positron-Emission Tomography

Interventions

Type	Name	Description
DIAGNOSTIC_TEST	Dynamic Whole-Body parametric PET/CT	Dynamic whole-body PET/CT imaging protocol

Timeline

• Start date: 2020-01-01
• Primary completion: 2021-12-31
• Completion: 2021-12-31
• First posted: 2020-12-09
• Last updated: 2022-02-22

Locations

1 site across 1 country: Denmark