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

NCT04660279 · Status: COMPLETED · Phase: NA · Type: INTERVENTIONAL · Enrollment: 20

Last updated 2022-02-22

No results posted yet for this study

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

DIAGNOSTIC_TEST

Dynamic Whole-Body parametric PET/CT

Dynamic whole-body PET/CT imaging protocol

Sponsors & Collaborators

  • Aarhus University Hospital

    lead OTHER

Study Design

Allocation
NA
Purpose
DIAGNOSTIC
Masking
NONE
Model
SINGLE_GROUP

Eligibility

Min Age
18 Years
Max Age
85 Years
Sex
ALL
Healthy Volunteers
Yes

Timeline & Regulatory

Start
2020-01-01
Primary Completion
2021-12-31
Completion
2021-12-31

Countries

  • Denmark

Study Locations

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Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT04660279 on ClinicalTrials.gov