title: [Attenuation correction methods in PET and PET/CT: basic principles and validity].
authors.forename: Shoichi
authors.initials: S
authors.lastname: Watanuki
mesh_terms: D016477:Artifacts; D006801:Humans; D049268:Positron-Emission Tomography / Q000295:instrumentation / Q000379:methods / Q000639:trends; D011829:Radiation Dosage; D015203:Reproducibility of Results; D014057:Tomography, X-Ray Computed / Q000295:instrumentation / Q000379:methods / Q000639:trends