AI RESEARCH
Generalizable CT-Free PET Attenuation and Scatter Correction for Pediatric Patients
arXiv CS.CV
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ArXi:2604.22894v1 Announce Type: cross Computed tomography (CT)-based attenuation and scatter correction improves quantitative PET but adds radiation exposure that is particularly undesirable in pediatric imaging. Existing CT-free methods are commonly trained in homogeneous settings and often degrade under scanner or radiotracer shifts, which limits their clinical utility. We propose the Generalizable PET Correction Network (GPCN), a dual-domain network for domain-robust CT-free PET attenuation and scatter correction.