Clinical Trial: Defining PET / CT Protocols With Optimized F18-FDG (Fluorodeoxyglucose) Dose, Focusing on Reduced Radiation Dose and Improved Image Quality

Study Status: Completed
Recruit Status: Completed
Study Type: Observational

Official Title:

Brief Summary: Identify the best combination of predictive variables that influence ionizing radiation dose and improved image quality through analysis and quantification of PET-CT images in simulators and patients.

Detailed Summary:
Sponsor: Hospital Sao Rafael

Current Primary Outcome: Correlation of body weight with the variation coefficient (image noise). [ Time Frame: 360 seconds ]

The image noise will be measured by VOI (Volume Of Interest) in the images. The units of measure will be kilograms (kg) for body weight, and percentage for the variation coefficient.


Original Primary Outcome: Same as current

Current Secondary Outcome:

  • Correlation of dose-regimen with the variation coefficient (image noise). [ Time Frame: 360 seconds ]
    The dose-regimen will be calculated based on radiation dose and body surface. The image noise will be measured by VOI (Volume Of Interest) in the images. The units of measure will be MegaBecquerel per kilogram (MBq/kg) for dose-regimen, and percentage for the variation coefficient.
  • Correlation of acquisition protocol time with the variation coefficient (image noise). [ Time Frame: 360 seconds ]
    Images will be acquired every 30 seconds until a maximum of 360 seconds. The image noise will be measured by VOI (Volume Of Interest) in the images. The units of measure will be seconds for the acquisition time, and percentage for the variation coefficient.


Original Secondary Outcome: Same as current

Information By: Hospital Sao Rafael

Dates:
Date Received: February 13, 2015
Date Started: September 2014
Date Completion:
Last Updated: August 19, 2015
Last Verified: August 2015