PET/CT scans with 18F-FDG can be carried out for the detection of neurodegenerative diseases with hypometabolisms characteristic of the pathologies sought. The diagnosis is given by the clinician after a visual analysis of the data. To complete the diagnosis, a semi-quantitative analysis of the images is recommended (European recommendations) in addition to the visual analysis.
PET/CT scans with 18F-FDG can be carried out for the detection of neurodegenerative diseases with hypometabolisms characteristic of the pathologies sought. The diagnosis is given by the clinician after a visual analysis of the data. To complete the diagnosis, a semi-quantitative analysis of the images is recommended (European recommendations) in addition to the visual analysis. PET technology is improving from year to year thanks to the arrival of a new PET technology called digital. In addition, correction methods have been developed to improve PET images and thus improve the detection of different pathologies in PET. The PSF (Point Spread Function) tool enables partial volume effects to be corrected. The PSF consists of correcting the impulse response of the system, and allows a visual improvement of the images. Currently not recommended in brain PET/CT reconstructions, it remains to be evaluated for the quantitative analysis of acquisitions.
Study Type
OBSERVATIONAL
Enrollment
25
Patients who performed brain PET/CT scans in the nuclear medicine department from December 2017 to December 2020.
Nuclear medicine department CHRU de NANCY Brabois
Vandœuvre-lès-Nancy, France
The results obtained in quantitative analysis with and without PSF modelling of PET brain scans of patients with Alzheimer's disease acquired on PET / CT scan
Comparison of the volumes detected by the quantitative analysis with the SPM (statistical parametric Mapping) software of brain PET scans of patients with Alzheimer's disease with and without FSP modelling.
Time frame: 6 months
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