Hodgkin Disease, Malignant Melanoma of the Skin, Malignant Neoplasm of Breast, Malignant Neoplasm of Bronchus and Lung, Malignant Neoplasm of Colon, Malignant Neoplasm of Small Intestine, Non-Hodgkin Lymphoma, Follicular (Nodular), Secondary Neoplasm Malignant and Unspecified Lymph Nodes
Conditions
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.
Interventions
OTHERImage 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.
Sponsors
Hospital Sao Rafael
Study design
Observational model
COHORT
Time perspective
OTHER
Eligibility
Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
Yes
Inclusion criteria
* Healthy volunteers; * Both genders; * Age over 18 years; * Clinical indication for PET-CT scan.
Exclusion criteria
* Pregnant women; * Patients who have lesions in the liver metabolically active whether primary or metastatic; * Patients with movement difficulties.
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Correlation of body weight with the variation coefficient (image noise). | 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. |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Correlation of dose-regimen with the variation coefficient (image noise). | 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). | 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. |
Countries
Brazil
Outcome results
None listed