Operational Qualification
Operational Qualification (sometimes also called quality assurance) ensures reproducible performance of the PET instrument in specification. If conducted on a regular basis, there is a high probability to detect degradation of defects of the PET instrument in an early phase and to avoid the acquisition of unqualified PET data. For this purpose it is useful to log the results of the operational qualification results over time.
|
| | |
ATS Center Setting in PET, MR or CT Center
(not applicable for PET Insert). | - ▪
- Check that the center setting of the transport system corresponds to the center of the FOV of the corresponding modality.
- ▪
- Identify the trend over the year and recalibrate if required.
| |
PET/MR
PET/CT
co-registration | - ▪
- Check that the co-registration of PET with the MR or CT images is correct and precise.
- ▪
- Identify the trend over the year and recalibrate if required.
| |
| - ▪
- Check image quantification.
- ▪
- Check energy resolution.
- ▪
- Check image deformation (decompression).
- ▪
- Check image uniformity.
- ▪
- Identify the trend over the year and recalibrate if required.
| |
| - ▪
- Check energy peak position.
- ▪
- Check singles rates.
- ▪
- Check coincidence rates.
- ▪
- Check detector event map.
| |
| - ▪
- Identify the trend over the year.
| |
| - ▪
- Use and check the log files of monthly performance qualification tests.
- ▪
- Identify the trend over the year.
| |
| - ▪
- Use an external gating generator to acquire and check a gated acquisition.
| |
Further information
- •
- How to install Quality Control Samples
- •
- How to verify the Alignment of PET and MRI
- •
- How to verify the Image Quality
- •
- How to verify the Sensitivity
- •
- How to verify the Resolution
- •
- How to verify the Performance
