An observational study in Malignant Neoplasm of Breast, Hodgkin Disease and Non-Hodgkin Lymphoma, Follicular (Nodular), sponsored by Hospital Sao Rafael. Completed at 1 site in Brazil. Open to participants aged 18 Years and older, including healthy volunteers. Per ClinicalTrials.gov, last updated 2017-11-28.
Sponsored by Hospital Sao Rafael · Observational
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.
12,820 studies on the registry are indexed under Breast Neoplasms; 2,920 are open to participants now.
This study's enrollment of 335 is above the median of 184 across 2,711 observational studies indexed under Breast Neoplasms.
Browse Breast Neoplasms studies →Hospital Sao Rafael is the lead sponsor of 12 studies on the registry; none are open to participants now.
Counted across the registry records on this site, refreshed daily.
Will be observed all patients who perform PET / CT examinations, independent of clinical indication, in nuclear medicine at Hospital Sao Rafael. Those who show interest in participating in the study, will be provided free and informed consent form (ICF) for your appreciation. This evaluation will serve for analysis and quantification of PET-CT images.
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Exclusion Criteria:
A total of 85 18F-FDG-PET adult studies were gathered over a 3-month period and retrospectively evaluated.
Other: Image quantify
To verify the application of methodology in clinical routine, we conducted a second phase of the study prospectively in 250 subjects (phase 2) using inclusion and exclusion criteria of the retrospective study (phase 1).
Other: Image quantify
Will be observed all patients who perform PET / CT examinations, independent of clinical indication, in nuclear medicine at Hospital Sao Rafael. Those who show interest in participating in the study, will be provided free and informed consent form (ICF) for your appreciation. This evaluation will serve for analysis and quantification of PET-CT images.
Correlation of body weight with the variation coefficient (image noise).
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.
Time frame: 360 seconds
Correlation of dose-regimen with the variation coefficient (image noise).
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.
Time frame: 360 seconds
Correlation of acquisition protocol time with the variation coefficient (image noise).
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.
Time frame: 360 seconds
This study is completed, as verified in Nov 2017. You cannot join it, but the record below documents what was studied.
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Hospital Sao Rafael