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Ventilation - perfusion SPECT is attractive for lung function assessement. Unfortunately, it is very difficult to delineate normal to abnormal areas because of physiological uptake heterogeneity.
In that context, it would be of interest to build statistical maps from registrered normal studies and propose a new methodology for normal SPECT delineation
Patients with normal VQ SPECT-CT will be analysed. After a image proccesing workflow including rigid registration, non rigid registration and normalization, a voxelized mean and standard deviation map will be created. Those maps will be analyzed in regards of physiology and litterature.
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| Measure | Description | Time Frame |
|---|---|---|
| Posterior to Anterior and Inferior to Superior uptake relative difference on parametric mean registered SPECT map versus non registered SPECT | parametric mean and standard deviation maps are build from elastic registration of normal lung V/Q SPECT-CT. A ROI based quantitative regional uptake comparison is performed to verify the influence of elastic registration on radiotracer distribution | through study completion, an average of 3 months |
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Inclusion Criteria:
Exclusion Criteria:
Patients with history of pulmonary disease:
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Patients referred to the department of nuclear medicine of Brest University Hospital, France, for suspected acute pulmonary embolism
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| Name | Affiliation | Role |
|---|---|---|
| Pierre Yves Le Roux, MD, Phd | CHRU BREST | Study Director |
| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| Médecine nucléaire - Hôpital Morvan (CHRU de Brest) | Brest | 29609 | France |
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